TRW Space & Defense One Space Park
Redondo Beach, CA 90278
CAGE CODE NO. 11982
TITLE
PACKAGING SPECIFICATION
PACKAGING OF ELECTROSTATIC DISCHARGE SENSITIVE
ELECTRONIC PARTS AND COMPONENT ASSEMBLIES
DATE 18 May 2001
NO.
REV.
SUPERSEDING:
PREPARED BY:
PK4-35
G
PK4-35F
1 December 1999
R.L. Billett/M. Feeney/E.V. Laguette
R.L. Billett
8/30/84
B.B. Evans
DATE
C.J. Holzbauer
9/5/84
DATE
D.J. Bigelow
DATE
W.B. Hallmark
9/5/84
8/30/84
9/6/84
DATE
J.A. Morrow
9/6/84
DATE
DATE
DATE
DATE
ORIGINAL PDMO RELEASE:
PK4-35, G. PDMO Released: 2001-05-21 (VERIFY REVISION STATUS). Page: 1
APPROVAL SIGNATURES:
PD
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SYSTEMS 1391 REV. 7-90
TRW Space & Defense
One Space Park
Redondo Beach, CA 90278
REVISION/CHANGE RECORD
SYMBOL
DOCUMENT
DATE
---
9/1/84
A1
12/12/84
AUTHORIZATION / DATE
FOR DOCUMENT NO.
REVISION / CHANGE DESCRIPTION
PK4-35G
PAGES
AFFECTED
See Title Page
Initial Release
All
Prep. R.L. Billett
Revised upper resistivity limit in 3.1.5.1 (a).
Revised 3.4 for clarification.
Revised 6.4.
Replace pages 2, 5, and 7
2
5
7
Added Table of Contents. Numerous
changes to format and requirements in
Section 3 effecting lead shorting, carbonloaded materials, Class 1A parts, RF devices
and semiconductor wafers. Added Figure 11
and 12. Revised paragraph 4.4
All
Appv. B.B. Evans
Appv. D. Ayala for
C.J. Holzbauer
A
2/17/89
Prep. R.L. Billett
Appv. B.B. Evans
Appv. C.J. Holzbauer
B1
10/19/90
Prep. R.L. Billett
Appv. R.L. Billett
Added 1.2. Revised 3.3 to clarify the use of
Table 1. Revised 3.3.9 to provide guideline
for the use of Figure 9 package. Revised
6.5.
1, 2, 6, 7, 11
In paragraphs 2. And 6.2 MIL-STD-1676 was
DOD-STD-1676. In paragraph 3.1.5.1 upper
12
14
resistivity limit 1 x 10 was 1 x 10 .
Paragraph 3.1.5.6 Carbon Loaded Materials,
deleted and paragraphs 3.1.5.7 and 3.1.5.8
renumbered as 3.1.5.6 and 3.1.5.7.
Paragraph 6.4 Resistivity, deleted and
paragraph 6.5 renumbered as 6.4.
All
Added subparagraph (e) under paragraph
3.1.5.5.
Deleted references to Figure 7 in Table I.
Deleted paragraph 3.3.7. Figure 7 is not to
be used as an approved packaging method.
4
Revised Table I to add references to Figure
7. Added paragraph 3.3.7. Revised Figure 7
to depict the description in paragraph 3.3.7.
Incorporated SCN C1.
All
B
8/12/93
Prep. R.L. Billett
Appv. R.L. Billett
CADM
REL.: Signature in file
C1
9/17/93
Prep. R.L. Billett
Appv. R.L. Billett
CADM
REL.: Signature in file
C
12/7/94
Prep. R.L. Billett
Appv. R.L. Billett
CADM
REL.: Signature in file
6
7
PK4-35, G. PDMO Released: 2001-05-21 (VERIFY REVISION STATUS). Page: 2
CADM
REL.: J. Kroll
PD
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SYSTEMS 1391 REV. 7-90
One Space Park
Redondo Beach, CA 90278
REVISION/CHANGE RECORD
SYMBOL
DOCUMENT
DATE
D
12/22/97
FOR DOCUMENT NO.
AUTHORIZATION / DATE
Prep. R.L. Billett
Appv. R.L. Billett
CADM
REL.: Signature in file
E
7/13/99
Prep: R. L. Billett
Materials Technology & Engineering
Appv: B. JW. Brooks
Materials Technology & Engineering
PK4-35G
REVISION / CHANGE DESCRIPTION
PAGES
AFFECTED
Revised para. 3.1.5.5 to allow the use of
carbon loaded polyethylene foam and to
clarify prohibited materials. Added para.
3.1.5.8 to define insulating materials.
Revised para. 3.6.4 to add reference to EIA
Standard RS-471 for label. Changed
references from anti-static materials to static
dissipative materials in a number of
paragraphs to conform to current industry
practice. Minor non-technical editorial
changes in a number of paragraphs.
All
Cover Sheet and RCR Pages are electronic
reproductions of the originals.
Cover Sheet,
RCR Pages
Made minor editorial changes.
All
Broadened document applicability in 1.1 to
include parts not susceptible to damage from
ESD, but used in areas controlling ESD.
1
Added EIA-625 to 6.2. Added ESD S11.11 to
Section 2 and to 3.1.5.1.
3
Changed 3.1.8 from Class 1A Parts to Highly
Sensitive Parts.
5
Changed 3.1.8.1 from Static Dissipative
Materials to Static Shielded Bags. Removed
reference to static dissipative materials and
ASTM D257.
5
Added, “as provided in paragraph 3.1.3” to
3.2.1.
5
Deleted “maximum quantity of 20 parts per
unit package” from 3.2.1.
5
Removed requirement for placing static
dissipative plastic film over cavities before
closing carrier in 3.3.4, now optional.
7
Added, “To simplify future handling…” to
3.3.4.
7
Added (f), Lot Number or Date Code to 3.6.2
for intermediate containers.
8
Removed 6.4.
9
PK4-35, G. PDMO Released: 2001-05-21 (VERIFY REVISION STATUS). Page: 3
TRW Space & Defense
PD
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SYSTEMS 1392 REV. 7-90
(FILE DIRECTLY AFTER COVER SHEET)
One Space Park
Redondo Beach, CA 90278
REVISION/CHANGE RECORD
SYMBOL
DOCUMENT
DATE
F
12/1/99
FOR DOCUMENT NO.
AUTHORIZATION / DATE
Prep: R. L. Billett
Materials Technology & Engineering
Appv: B. JW. Brooks
Materials Technology & Engineering
G
5/18/01
Prep: R. L. Billett
Materials Technology & Engineering
Appv: B. JW. Brooks
Materials Technology & Engineering
REVISION / CHANGE DESCRIPTION
PK4-35G
PAGES
AFFECTED
In paragraph 3.1.5.1(b), “static decay time”
was “static decay rate”.
4
Added paragraph 3.1.5.5 (g) to prohibit the
use of PVC plastics.
5
Added paragraph 6.4.
9
1.1 Added voltage criteria to define ESD
sensitivity and deleted reference to TRW
drawing M283308.
2. Added TRW Specifications PK4-17, PK420, & PK4-21 and deleted NASA test method
MMA-1985-79 and TRW Drawing M283308
in Applicable Documents section.
3.1.5.5 Revised to add description and
guidance for prohibited materials.
3.1.5.5 (e) Added materials which contain
amines and amides to prohibited items.
3.1.5.5 (g) Deleted prohibition of chloride
containing plastics except for
polyvinylchloride.
Added 3.1.5.5.(h) to prohibit certain types of
plastic bags and film.
Deleted paragraphs 3.1.8, 3.1.8.1, & 3.1.8.2
which provided additional packaging
requirements for highly sensitive parts.
Added 3.1.8 to provide for additional
requirements imposed by procurement
documents.
3.3.4 Revised to delete recommendation for
the maximum parts per carrier.
Minor editorial changes in a number of
locations.
1
2,3
5
5
5
5
5
5
7
PK4-35, G. PDMO Released: 2001-05-21 (VERIFY REVISION STATUS). Page: 4
TRW Space & Defense
PD
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SYSTEMS 1392 REV. 7-90
(FILE DIRECTLY AFTER COVER SHEET)
PK4-35G
18 May 2001
TABLE OF CONTENTS
Page
1. SCOPE
......................................................................................................... 1
1.1 Scope
......................................................................................................... 1
1.2 Purpose ......................................................................................................... 1
3. REQUIREMENTS ......................................................................................................... 4
3.1 General ......................................................................................................... 4
3.1.1 Processes .......................................................................................... 4
3.1.2 Cleaning............................................................................................. 4
3.1.3 Pairs, Sets, and Kits........................................................................... 4
3.1.4 Hardware ........................................................................................... 4
3.1.5 Packaging Materials........................................................................... 4
3.1.5.1 Anti-Static Materials............................................................. 4
3.1.5.2 Shielding Materials .............................................................. 4
3.1.5.3 Lead Shorting ...................................................................... 4
3.1.5.4 Static Shielded Bags............................................................ 4
3.1.5.5 Prohibited Materials ............................................................. 5
3.1.5.6 Corrosivity............................................................................ 5
3.1.5.7 Solderability ......................................................................... 5
3.1.5.8 Insulating Materials.............................................................. 5
3.1.6 Electrostatic Discharge (ESD) Protection ........................................... 5
3.1.7 Connectors......................................................................................... 5
3.1.8 Procurement Documentation.............................................................. 5
3.2 Unit Package Design ........................................................................................ 6
3.2.1 Quantity.............................................................................................. 6
3.2.2 Physical Protection............................................................................. 6
3.2.3 Removal and Replacement Capability................................................ 6
3.2.4 Documentation ................................................................................... 6
3.3 Unit Package Selection..................................................................................... 6
3.3.1 Figure 1.............................................................................................. 6
3.3.2 Figure 2.............................................................................................. 7
3.3.3 Figure 3.............................................................................................. 7
3.3.4 Figure 4.............................................................................................. 7
3.3.5 Figure 5.............................................................................................. 7
3.3.6 Figure 6.............................................................................................. 7
3.3.7 Figure 7.............................................................................................. 7
3.3.8 Figure 8.............................................................................................. 7
3.3.9 Figure 9.............................................................................................. 7
3.3.10 Figure 10.......................................................................................... 7
3.3.11 Figure 11.......................................................................................... 8
3.3.12 Figure 12.......................................................................................... 8
3.4 Intermediate Container ..................................................................................... 8
3.5 Shipping Containers ......................................................................................... 8
PK4-35, G. PDMO Released: 2001-05-21 (VERIFY REVISION STATUS). Page: 5
2. APPLICABLE DOCUMENTS ......................................................................................... 2
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18 May 2001
TABLE OF CONTENTS (Continued)
Page
3.6 Marking ......................................................................................................... 8
3.6.1 Unit Packages.................................................................................... 8
3.6.2 Intermediate Containers ..................................................................... 8
3.6.3 Shipping Containers ........................................................................... 9
3.6.4 Electrostatic Discharge Sensitive Marking.......................................... 9
3.7 Workmanship ................................................................................................... 9
4. QUALITY ASSURANCE PROVISIONS.........................................................................10
4.1 Inspection Responsibility .................................................................................10
4.2 Acceptance Inspection Procedures..................................................................10
4.3 Visual Examination ..........................................................................................10
4.4 Certification......................................................................................................10
5. PREPARATION FOR DELIVERY..................................................................................10
6. NOTES
6.1
6.2
6.3
6.4
........................................................................................................................10
Intended Use ...................................................................................................10
ESD Control Programs ....................................................................................10
Topical Antistats ..............................................................................................10
Changes from Previous Issue..........................................................................10
Table
TABLE I - UNIT PACKAGE SELECTION GUIDE................................................................ 6
Figure 1 ............................................................................................................................11
Figure 2 ............................................................................................................................11
Figure 3 ............................................................................................................................12
Figure 4 ............................................................................................................................12
Figure 5 ............................................................................................................................13
Figure 6 ............................................................................................................................13
Figure 7 ............................................................................................................................14
Figure 8 ............................................................................................................................14
Figure 9 ............................................................................................................................15
Figure 10............................................................................................................................15
Figure 11............................................................................................................................16
Figure 12............................................................................................................................16
PK4-35, G. PDMO Released: 2001-05-21 (VERIFY REVISION STATUS). Page: 6
Figures
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PK4-35G
18 May 2001
PACKAGING SPECIFICATION
PACKAGING OF ELECTROSTATIC DISCHARGE SENSITIVE
ELECTRONIC PARTS AND COMPONENT ASSEMBLIES
1.0 SCOPE
1.1 Scope. This specification establishes requirements for the preservation,
packaging, electrostatic discharge protection, packing and container marking for
electronic parts and component assemblies which are subject to damage from
electrostatic discharge (ESD). These items are referred to herein as parts. The parts
applicable to this specification are those susceptible to damage or degradation from
ESD voltages of less than 16,000 volts. This specification may also apply to parts which
are not susceptible to damage from ESD but which are used in areas requiring control
of ESD.
G
PK4-35, G. PDMO Released: 2001-05-21 (VERIFY REVISION STATUS). Page: 7
1.2 Purpose. The purpose of this specification is to provide requirements and
guidance for the application of protective packaging to electronic parts, which will be
suitable for the protection of such parts during initial shipment. In addition, it is intended
that the packaging will be compatible with subsequent internal handling and
transportation operations of receiving, inspection, testing, storage, kitting and issue to
manufacturing for assembly.
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PK4-35G
18 May 2001
2. APPLICABLE DOCUMENTS
The following documents form a part of this specification to the extent specified herein.
Unless otherwise specified in the issue in effect on the date of procurement placement
shall apply.
STANDARDS
Federal
Federal Test Method
Standard 101
Test Procedures for Packaging Materials
Military
MIL-HDBK-1547
Parts, Materials and Processes for
Space & Launch Vehicles, Technical
Requirements for
MIL-STD-129
Marking for Shipment and Storage
Electrostatic Discharge Control Program
for Protection of Electrical and Electronic
Parts, Assemblies & Equipment
American Society for Testing and Materials (ASTM)
MIL-STD-1686
ASTM D257
D-C Resistance or Conductance of
Insulating Materials
ASTM D991
Volume Resistivity of Electrically
Conductive and Anti-Static Products
EIA-625
Requirements for Handling Electrostatic
Discharge Sensitive (ESDS) Devices
RS-471
Symbol and Label for Electrostatic
Sensitive Items
Electrical Overstress/Electrostatic Discharge Association (EOS/ESD)
ESD S11.11
Surface Resistance Measurement of
Static Dissipative Planar Materials
PK4-35, G. PDMO Released: 2001-05-21 (VERIFY REVISION STATUS). Page: 8
Electronics Industries Association
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PK4-35G
18 May 2001
SPECIFICATIONS
TRW Space & Electronics Group
PK4-17
Packaging of Small Electronic Parts in
Waffle Packs
PK4-20
Packaging of Small Electronic Parts
on Tape and Reel Packages for
Automated Assembly
PK4-21
G
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Packaging of Small Electronic Parts in
Matrix Trays
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3. REQUIREMENTS
3.1 General.
3.1.1 Processes. All packaging and related activities including cleaning,
preservation, packaging and packing shall be conducted in a manner to insure that
there is no degradation or physical damage including electrostatic discharge damage to
the parts (see 6.2).
3.1.2 Cleaning. Parts shall be clean prior to packaging. When cleaning is
required it shall be accomplished by a process or combination of processes, which will
remove contaminants without causing degradation or damage including electrostatic
discharge damage.
3.1.3 Pairs, Sets, and Kits. Parts furnished in pairs, sets, or kits under one part
identification number shall be unit packaged as one pair, one set, or one kit, as
applicable. The package design shall prevent part damage from contact with other
parts contained in the same package.
3.1.4 Hardware. Hardware accompanying a part (brackets, screws, etc.) shall
be protected and enclosed within the unit package in a manner that will not damage the
part or package. When practical, the hardware shall be mounted on the part. The
package design shall prevent part damage from contact with other parts contained in
the same package.
3.1.5 Packaging Materials. All packaging materials shall be clean, dry and
chemically inert and shall maintain their required properties including static dissipative
properties throughout normal storage, handling and usage.
3.1.5.1 Static Dissipative Materials. Static dissipative materials used for the unit
packages and in intimate contact with the part shall conform to the following:
(a) Surface
resistivity equal to or greater than 1 X 105 but not greater than 1 X
12
10 ohms/square in accordance with ASTM D257 or ESD S11.11.
(b) Static decay time of less than 2 seconds in accordance with Federal Test
Method Standard 101 Method 4046.
(c) The material shall be capable of dissipating static charges when grounded
without the production of a spark.
3.1.5.2 Shielding Materials. Conductive materials used for shielding shall have
a surface resistivity of less than 1 X 105 ohms/square in accordance with ASTM D991.
3.1.5.3 Lead Shorting. Material, when used for shorting or shunting of part
leads to each other, shall be a conductive material having a direct resistance of 200
ohms or less when measured with an ohmmeter with test probes approximately 3/4 inch
apart.
3.1.5.4 Static Shielding Bags. Static shielding bags as specified in the unit
package descriptions shall consist of three (3) layers or laminations with a static
dissipative inner layer and one of the following options:
(1) A continuous conductive exterior layer and an insulating intermediate layer or
(2) A static dissipative exterior layer and a continuous conductive intermediate
layer.
Heat sealed bags shall be of a size to permit opening and resealing a minimum of two
(2) times.
PK4-35, G. PDMO Released: 2001-05-21 (VERIFY REVISION STATUS). Page: 10
PK4-35G
18 May 2001
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3.1.5.5 Prohibited Materials. Packaging materials that may contaminate,
damage, or degrade parts by chemical degradation, outgassing, particle shedding, or
diffusion during long term storage shall not be used in unit packages. Materials
prohibited in unit packages include:
G
(a) Carbon loaded plastic film except as the conductive layer or lamination within
a static shielding bag as described in paragraph 3.1.5.4.
(b) Carbon loaded polyurethane foam. Cross linked polyethylene foam which
contains carbon is acceptable.
NOTE: Carbon loaded plastic foams can generally be
identified by their dark black color.
(c) Materials which will easily shed conductive particles.
(d) Materials which have been treated with a topical antistat. (See 6.3)
(e) Materials which contain amines, amides, or n-octanoic acid or its precursor.
(f) Fiberboard or paperboard products which are in direct or intimate contact with
the part contained.
(g) Polyvinylchloride (PVC) plastics.
(h) Surfactant added plastic bags or film materials commonly known as pink
poly.
3.1.5.6 Corrosivity. Materials used for or within unit packages shall be noncorrosive in accordance with Federal Test Method Standard 101 Method 3005.
3.1.5.7 Solderability. Materials used shall not affect part solderability as defined
in the applicable part specification.
G
G
3.1.6 Electrostatic Discharge (ESD) Protection. All parts shall be provided with
protection from ESD as described herein. ESD protection shall be provided by the use
of a combination of static dissipative packaging materials to prevent the generation of
electrostatic charges and conductive materials for shielding which provides a
continuous conductive shield enclosing the part.
3.1.7 Connectors. Parts (RF Devices) that have coaxial connectors shall have
connector covers made from a static dissipative plastic material installed on all
connectors.
3.1.8 Procurement Documentation. In addition to the requirements contained
herein, packaging shall conform to specific requirements contained within the
procurement documentation (part specifications, purchase order statement of work,
etc.) when those requirements are more specific than the requirements contained
herein. When packaging specification PK4-17, PK4-20, or PK4-21 is specified in the
procurement documentation (to support automated assembly equipment), that
specification shall take precedence over the requirements in this specification and
conformance to PK4-17, PK4-20, or PK4-21 as applicable, shall be used as criteria for
acceptance.
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PK4-35, G. PDMO Released: 2001-05-21 (VERIFY REVISION STATUS). Page: 11
3.1.5.8 Insulating Materials. Packaging materials identified herein as insulating
shall have a surface resistivity greater than 1 X 1012 ohms/square in accordance with
ASTM D257.
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PK4-35G
18 May 2001
3.2 Unit Package Design
3.2.1 Quantity. The quantity of parts contained in each unit package shall be
one (1) except as provided in paragraph 3.1.3 and chip devices packaged as described
in paragraph 3.3.4 (Figure 4).
3.2.2 Physical Protection. The unit package design shall provide physical
protection and prevent excessive movement of the part. Leads or terminals shall be
maintained in their manufactured configuration without causing undue loads or stresses
capable of causing damage to the part. Securing leads by tape or adhesive is not
permitted.
3.2.3 Removal and Replacement Capability. The unit package shall be easy to
open and reclose for re-use. It shall be constructed in such a manner that the part can
be easily removed and replaced without damage to the part or to the integrity of the
package.
3.2.4 Documentation. Documentation provided with parts shall be packaged as
a separate unit package. When plastic bags or envelopes are used for this purpose
they shall be of static dissipative material.
3.3 Unit Package Selection. Table I is provided as a guide to suggest suitable
unit packages for a given part configuration. Figures other than those specified in
Table I as well as other materials, packages, and containers may also be used. The
unit package selected from Table I or any unit package used shall meet the applicable
requirements of paragraphs 3.1 and 3.2 of this specification. All required protection
from electrostatic discharge shall be provided by the unit package.
TABLE I. Unit Package Selection Guide
Applicable Figures
1, 2, 4
Axial lead
3, 5, 10
Radial lead
5, 7, 11
Flatpack
5, 6, 7, 11
Dual inline (DIP)
3, 8, 9
TO Can
3, 10
RF Device
3, 5
Semiconductor wafer
12
3.3.1 Figure 1. The unit package shall be a static shielding bag. The bag shall
be closed with a zipper type reusable closure.
CAUTION: This method shall be used only when the part is rugged
enough to be adequately protected in this manner.
PK4-35, G. PDMO Released: 2001-05-21 (VERIFY REVISION STATUS). Page: 12
Part Type or Configuration
Chip
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PK4-35G
18 May 2001
3.3.2 Figure 2. The unit package shall be a static shielding bag. The bag shall
be closed by a heat seal or other suitable means.
CAUTION: This method shall be used only when the part is rugged
enough to be adequately protected in this manner.
3.3.3 Figure 3. The unit package shall be 2-piece molded static dissipative
holding device that incorporates a blister cavity or compartment to provide part
protection. Closure of the holding device shall be by friction locks or similar means that
meet the requirements of paragraph 3.2.3. Each holding device shall be placed in an
individual heat-sealed or zipper sealed static shielding bag.
3.3.4 Figure 4. The unit package shall be a two-piece, dustproof carrier made
from conductive or static dissipative material formed with individual cavities. No more
than one part shall be placed into each cavity. A sheet of static dissipative plastic film
or other suitable material may be placed over the cavities before closing the carrier.
The closure shall be by friction locks, clips or similar means. Each carrier shall be
placed in a static shielding bag.
3.3.5 Figure 5. The unit package shall be a rigid or semi-rigid static dissipative
plastic box with preformed 2 or 3-piece static dissipate cushioning inserts. Each box
shall be placed in an individual static shielding bag.
3.3.6 Figure 6. The unit package shall be a suitable rigid static dissipative
carrier that protects and maintains lead configuration. A clip or other holding device
shall secure the part in the carrier. Each carrier shall be placed in an individual static
shielding bag.
G
3.3.8 Figure 8. The unit package shall be a conductive or static dissipative tube
(rail) formed to provide physical protection to the part. The part shall be secured in the
tube by plugs, pins, static dissipative foam or other means. Each tube shall be placed
in an individual static shielding bag. NOTE: Only one part shall be packaged in each
tube and bag combination.
3.3.9 Figure 9. The unit package shall consist of a piece of static dissipative
foam into which the part leads are inserted. Each part with foam shall be placed in an
individual static-shielding bag.
CAUTION: This method shall only be used for parts which have leads
rugged enough to withstand insertion and removal from the foam without
damage and which have cases rugged enough to be properly protected in
this manner. As a guideline, this packaging method should not be used
for parts with leads that project more than 0.5 inch from the part body.
3.3.10 Figure 10. The unit package shall be a static dissipative tube or vial into
which the part is placed with static dissipative cushioning inserts to secure the part.
Each tube or vial shall be placed in an individual static shielding bag.
PK4-35, G. PDMO Released: 2001-05-21 (VERIFY REVISION STATUS). Page: 13
3.3.7 Figure 7. The unit package shall consist of a holding device made from a
rigid static dissipative plastic material, folded or hinged in half. Cut outs shall be
provided in the holding device for the body of the part. The two halves shall be secured
in a closed position using static dissipative pressure sensitive tape. The material
selected and the design of the holding device shall protect the leads and body of the
device from damage. Each holding device shall be placed in a rigid or semi-rigid static
dissipative plastic box. Each plastic box shall be placed in an individual static shielding
bag.
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3.3.11 Figure 11. The unit package shall be a static dissipative plastic box with
a rubber permanent magnet secured to the inside bottom of the box that holds the part
in place. Each closed plastic box shall be placed into an individual static shielding bag.
CAUTION: This method shall be used only with lightweight parts that will
be adequately secured by the magnet. A static dissipative foam-cushioning pad
may be used to help hold the part in place.
3.3.12 Figure 12. The unit package shall be a static dissipative plastic box that
holds the part in a manner to prevent movement and protect critical surfaces. Each
closed plastic box shall be placed in an individual static shielding bag.
3.4 Intermediate Container. The use of intermediate containers for parts
packaged in unit containers in accordance with paragraph 3.3, is optional except that
they are required whenever different part numbers are consolidated for one shipment.
Unit packages containing identical parts shall be uniformly loaded into a paperboard or
fiberboard folding or setup box. Voids shall be filled using a clean, non-dusting, and
chemically neutral cushioning material. Plastic materials in direct contact with the unit
packages shall be static dissipative. Gross packed weight for paperboard or fiberboard
intermediate containers shall not exceed their design specification.
3.5 Shipping Containers. Only fiberboard boxes bearing the boxmaker’s
certificate in accordance with applicable freight classifications shall be used as exterior
shipping containers. The gross weight limit indicated in the box certificate shall not be
exceeded.
3.6 Marking. All containers shall be legibly and durably labeled, tagged, or
marked to show the information specified in the following paragraphs. It is not
necessary to duplicate marking on the unit package when it is clearly visible on the part
without opening the package.
3.6.1 Unit Packages. Unit packages shall show the following information:
(a)
TRW Part Identification Number
(b)
Manufacturer’s Name, Initials, or Trademark
(c)
Nomenclature
(d)
Electrostatic-Sensitive Device Label (see paragraph 3.6.4)
Special marking, when applicable, shall include:
(e)
Serial Number
(f)
Lot Number or Date Code
(g)
Electrical Rating
3.6.2 Intermediate Containers. Intermediate containers (when used) shall show
the following information:
(a)
TRW Part Identification Number
(b)
Purchase Order or Contract Number
(c)
Nomenclature
(d)
Quantity of parts contained
(e)
Electrostatic-Sensitive Device Label (see paragraph 3.6.4)
(f)
Lot Number or Date Code
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3.6.3
information:
(a)
(b)
(c)
(d)
Shipping Containers. Shipping containers shall show the following
TRW Purchase Order or Contract Number
Manufacturer’s Name and Identifying Code
Electrostatic-Sensitive Device Label (see paragraph 3.6.4)
Shipping documentation (packing slips) shall indicate the quantity of each
part number contained in the shipment if not included in the shipping
container marking.
3.6.4 Electrostatic Discharge Sensitive Marking. Marking and labeling shall
clearly show the sensitive nature of the parts contained. The applicable label
requirements of MIL-STD-129 or EIA Standard RS-471 are preferred; however, other
distinctive labels of a similar nature are acceptable.
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3.7 Workmanship. The packaging, packing, electrostatic discharge protection,
and marking shall be of uniform good quality and free from defects that will impair
service life and appearance.
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4. QUALITY ASSURANCE PROVISIONS
4.1 Inspection Responsibility. The supplier is responsible for the performance of
all inspection requirements as necessary to ensure conformance to this specification.
TRW reserves the right to perform any inspection where such inspections are deemed
necessary to assure that materials and processes conform to prescribed requirements.
4.2 Acceptance Inspection Procedures. Inspection shall be as specified herein.
Shipments that do not conform to the requirements specified herein shall be rejected.
4.3 Visual Examination. Packages shall be examined to verify that the package,
packaging materials, orientation of parts, and container markings are in accordance
with the requirements specified in Section 3 of this specification.
4.4 Certification. The supplier shall provide certification that the packaging
methods and materials used for providing electrostatic discharge protection conform to
the requirements of this specification. The supplier’s standard certificate of compliance
issued with each product shipment will be interpreted to include compliance to the
requirements of this specification.
6. NOTES
6.1 Intended Use. This specification is intended for use by manufacturers and
suppliers of electrostatic discharge sensitive electronic parts to TRW as general
requirements for packaging.
6.2 ESD Control Programs. Additional information and guidance in establishing
and maintaining an ESD control program including processes, handling and packaging
can be found in MIL-HDBK-1547 , EIA-625, and MIL-STD-1686.
6.3 Topical Antistats. Topical antistats as referred to herein are those materials
applied to the surfaces by brushing, dipping or spraying. They generally consist of a
liquid solvent carrier and a primary material that is deposited on the surface to perform
a static control function.
6.4 Changes from Previous Issue. A vertical line in the right hand margin is
used in this revision to identify changes with respect to the previous issue.
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5. PREPARATION FOR DELIVERY
Not applicable
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Figure 2. Bag (See 3.3.2)
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Figure 1. Reclosable Bag (See 3.3.1)
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Figure 4. Chip Carrier (See 3.3.4)
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Figure 3. Holding Device in Bag (See 3.3.3)
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Figure 6. Carrier in Bag (See 3.3.6)
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Figure 5. Cushioned Box in Bag (See 3.3.5)
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Figure 8. Formed Tube in Bag (See 3.3.8)
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Figure 7. Plastic Holding Device (See 3.3.7)
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Figure 10. Vial in Bag (See 3.3.10)
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Figure 9. Foam and Bag (See 3.3.9)
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Figure 12. Wafer Package (See 3.3.12)
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Figure 11. Magnet in Box (See 3.3.11)
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