Introduction to Wirebonding
Machine and Pick&Place Tool
Pengcheng Jia
Nov 21, 2002
West Bond Inc.
1551 Gene Autry Way, .
Anaheim, CA 92805
Phone: 714.978.1551
Fax: 714.978.0431
Wire Bonding Machine
Gold wire
spoon
Tool
Wedge Wire Bonder



Model 7400B Series
Wedge-Wedge Wire Bonders
Adjust bonding
Manual X-Y-Z
N2
A heater is
around the tool
force
Temp Controler & Workholder
Temp Controler, press * and up
or down arrow to adjust
workholder’s temperature
Power and
N2 pipes
Workholder
with rotation
adaptor
Furnace Workholder with cavity
inert atmosphere (N2) and
rotating mirror
Control-Right Side
Control-Left side
Display
parameters
Open clamp
Or feed wire
Tool heater
control
Memory Move tail
back/forth
Operation
Clamp
• Turn on equipment, turn on N2 gas
• Setup configuration
Tool
• Clamp sample on the workholder & heat it if necessary
• Bond first point: Take the handle bar, gently touch the pad, hear a
beep, the ultrasonic power is applied to melt gold wire to the pad
• Move from front to back with a loop: when the handle is lifted,
clamp opens; when tool is lowered to some extend, clamp is closed,
then the length of the wire can’t be changed.
• Bond second point and break the wire
Bonding principle
Toughest Operation
Use tweezers to get the wire through the hole in the
tool
Operator
face the
front,
can’t see
the hole
Gold
wire
Tool
Clamp
Hole in the tool
Assessory Vendor
• For workholder & other components, contact West
Bond Inc.
• For tools, contact Deweyl Tool, Inc.
*Lead time may be several month, so order in advance
• Gold wire from California Gold Wire
Cal Fine Wire Co.
Fax:1-805-489-5352
Phone:1-805-489-5144
Assessory Types
Wire
0.001” gold wire
Elong: 0.5%-2%
 Tool

shank size length
tip size (20x25 mil^2)
MCSOE-1/16-750-45-C-2025-M or
shank size length
tip size (20x15 mil^2)
MCSOE-1/16-750-45-C-2015-M
Pick & Place Tool
•Model 7316B/7200B Series,
•Dual Head Die Bonders,
•Manual X-Y-Z
This machine with tool heads for dispensing epoxy and for pick
up and placement of dice. Die rotation and radiant heat to the tool
are both included. A third head with a vacuum capillary tool for
pick and place of preforms is also included. Exchange of this head
for the epoxy dispense head converts this machine from epoxy to
eutectic preform bonding. Mechanical scrub motion for the bond
head, driven by the transfer motor, is programmable in both
amplitude and number of repetitions: Bonding force is adjustable
by a low rate coil spring.
Eutectic Bonding 7316B
Vaccum
Vaccum
Vaccum for
solder
Collet for
picking up die
Epoxy Bonding 7200B
Vaccum
compressed air
Vaccum for Die
Change to epoxy
reservoir
Air Connections
•Switch at the back of machine: switch between
7316B(epoxy) and 7200B(eutectic) before operation
•Compressed air, regulated to 50 psig, is required.
R
Connection
is via ¼" tubing.
e
q shop vacuum is required with connection
•Normal
also tou¼ in. tubing.
i
Regulator
is on the left back side of the machine
r
e
•N2 is conntect
to the right back side. It is for
d N2 atmosphere enviorment at the
providing
S
workholder.
Regulator is also on the right back side
e
Collet and Tool Vendor
Gaiser Tool Company
4544 McGrath Street . Ventura,
CA . 93003 . USA .
Phone 805.644.5583 .
FAX 805.644.2013
Eutectic Die Collet
Vaccum pick up tool
Shank Style