FCCB Copy Exactly: A Summary Overview R. Cohen / K. Hassett / R. Litchfield Topic Page 1. Purpose Of This Document: ..................................................................................................... 1 2. FCCB Copy Exactly (CE!) Summary ........................................................................................ 1 3. "Compelling Reason For Change" ............................................................................................ 2 4. Who Needs to Know About CE! (Scope) .................................................................................. 2 5. CE! Expectations ...................................................................................................................... 2 6. “Real Life” CE! Examples ......................................................................................................... 2 7. FCCB Change Classification System ....................................................................................... 3 8. Summary .................................................................................................................................. 4 9. Appendix A: FCCB Change Classification System .................................................................. 4 10. Appendix B: FCCB Change Classification Examples ........................................................... 11 1. Purpose Of This Document: To stress the importance of Copy Exactly! for facilities systems and equipment installation changes and to give a brief overview of the FCCB white paper process. 2. FCCB Copy Exactly (CE!) Summary WHAT IS COPY EXACTLY! ? “COPY EXACTLY!” is one of the most important elements of Intel’s process transfer methodology. It means that we copy the approved standard for process equipment installations and facilities systems exactly when we add manufacturing capacity locally or at a new factory. WHY USE COPY EXACTLY! ? Advanced silicon chip processes are very complex and sensitive. We simply don’t understand all the sensitivities and subtle interactions. In the past, some very simple and innocent-looking changes have caused dramatic decreases in yield, reliability, and output. DOES CE! WORK ? Yes! By using this method, Intel has been able to transfer advanced technologies and add new product capacity significantly faster than our competitors. Examples of CE! success were the startups of Fab 11 and Fab 12 on P854 where their initial yields were essentially equivalent to the Fab 15 yields and the factories have continued to track yield levels very closely since. ARE THERE EXCEPTIONS? Rev Date 19-May-1999 Page 1 of 12 Yes, only if there are compelling reasons or physical barriers to copying exactly. However, these exceptions must be tested, documented, reviewed, and then approved by the FCCB process to ensure that the proposed changes won’t affect product yield or reliability. 3. "Compelling Reason For Change" Some examples of a compelling reason to change could be: A particular component is no longer available, at any price A local site requires additional waste treatment, above and beyond the POR (plan of record) A substantial cost savings can be realized by Intel without impacting the process Corrects a known problem and establishes a new POR Compelling does not mean: 1. That's the way we do it in __________ (plug in the appropriate Intel site) 2. This is the industry standard 3. Personal preference/bias Once a change is established as compelling, the change is documented using a white paper and it is reviewed through the FCCB change control process. 4. Who Needs to Know About CE! (Scope) Anyone who is working on the design, construction, or maintenance of a Fab, Bridge Building, Sort, Fab C4, or Fab Cub area for processes P854, 856, 858, 860, 802, and 1260. Office buildings, Assembly, Test, and General Purpose buildings are covered by a separate CE! system and are not part of this presentation. 5. CE! Expectations It is an expectation that anyone who is working within the scope of CE! will write a white paper (ahead of time) for any change that requires a white paper. It is not acceptable to make a change first and then write the white paper after the fact. This is because that change may be deemed unacceptable and it will have to be retrofitted which could have a significant impact on cost and schedule. 6. “Real Life” CE! Examples Example 1: An engineer in the employ of an Intel A/E consultant reviewed a submittal requesting substitution for a backdraft damper to be used in the scrubbed exhaust system. The engineer did not flag the item to the Intel Workgroup lead as requiring a Whitepaper. Rev Date 19-May-1999 Page 2 of 12 Result: Substituted damper failed in service; replacement had to be scheduled which caused factory downtime. Example 2: An Intel project was kicked off with aggressive goals for cost cutting. All Intel FCT engineers were tasked with finding cheaper vendors for capital equipment. The Mechanical group bids and awards to a makeup air handler vendor were not on the approved supplier list. Result: After startup the unit was found to have excessive housing leakage. Example 3: A planar chemical tool was installed and the chemical valve manifold box was slightly different from the approved design. The IQ engineer and tool owner made a field decision to accept the non-standard box design even though it caused a minor process line slope change (line runs slightly “uphill” before turning back down to the tool). No white paper was submitted because it was felt that the change was “minor” and not impactive. Result: After several months, a second tool was connected to the non-standard valve box and the increased chemical demand coupled with the line slope change resulted in a “bubble” in the line which formed a vapor lock and starved the original Planarization tool with this chemical. Several wafers were scrapped as a result and the valve box had to be fixed. Example 4: An engineer in the Litho area received approval from the JET to change the type and design of the pedestal supporting the Micrascan stepper in the Fab without any form of documentation. Result: This undocumented decision caused a significant lack of synergy between processes for pedestal design. This lack of synergy could result in significant costs and downtimes for retrofits if it is determined to be a problem. At a minimum, the different types of pedestals are a violation of CE!. 7. FCCB Change Classification System A key element of the FCCB white paper is its "classification". The white paper classification is a number (denoted as a roman numeral) that assesses the amount of risk associated with the specified change. The “risk” that we refer to here is typically risk to factory output. The change classification level becomes the overall "class" of the white paper (e.g., a Class III white paper). In the FCCB, the following white papers are reviewed: Class III: Significant Risk (min 3 levels of review) Class IV: Moderate Risk (min 2 levels of review) Class V: Low Risk (min 1 level of review) The overall classification of the WP determines how much review, and by which groups, will be required before it is approved. Rev Date 19-May-1999 Page 3 of 12 Each change that is included in a white paper is classified by using the FCCB Change Classification matrix. This is a table that compares two things: 1) the “Level” of a particular utility that is being affected by the change, and 2) the amount or “degree” of the change. Details on how to classify changes for the FCCB can be found in the Fab FCCB Policies and Procedures , FCCB White Paper Handbook , or by taking the FCCB White Paper Intel University class. 8. Summary CE! is extremely critical to Intel’s success. It is imperative that all changes are reviewed and understood completely before taking any action. The FCCB white paper is the vehicle that must be used to document, review, and approve all changes that fall within the FCCB scope. Once a change is identified and is determined to require an FCCB white paper, work within your working group to get the white paper written and reviewed through the FCCB process. An Intel University class is available which focuses on writing FCCB white papers and is recommended for anyone who will be writing one or more white papers: Intel University course code PTD007692. Additionally, the FCCB has a document which outlines the FCCB processes entitled Fab FCCB Policies and Procedures. Rev Date 19-May-1999 Page 4 of 12 Appendix A: FCCB Change Classification System A. Types of FCCB White Papers The types of white papers that the FCCB will review are: 1. Changes to in-scope facilities or Fab process equipment installations with respect to the Plan of Record. 2. Documentation of A-level system qualifications (e.g., D1B Fab C4 BCD system qualification) 3. Facilities Matching for A, B, and E-level systems 4. Documentation for a new facilities systems or Fab process equipment installation POR’s B. FCCB Change Classification System The white paper classification is a number (denoted as a roman numeral) that assesses the amount of risk associated with the specified change. The “risk” that we refer to here is typically risk to factory output. The change classification level becomes the overall "class" of the white paper (e.g., a Class III white paper). In the FCCB, the following white papers are reviewed: Class III: Significant Risk Class IV: Moderate Risk Class V: Low Risk The overall classification of the white paper determines how much review, and by which groups, will be required before it is approved. Typically, if a white paper contains multiple changes, each change is classified. However, the overall classification of the white paper is determined by the "highest" class of all of the changes. For example, if a white paper contains one class III change and three class IV changes, the overall classification of the white paper is III. Facilities matching and A-level system qualification white papers are always reviewed through the FCCB and will be at least class IV white paper. However, if the facilities matching white paper contains a change that is a class III change (per the matrix), then the overall classification of the white paper will be class III. FCCB changes are classified by using the FCCB Change Classification matrix. This is a table that compares two things: 1. the particular facilities system that is being affected by the change 2. the amount or degree of the change. Rev Date 19-May-1999 Page 5 of 12 Note: a detailed explanation of classifying changes and writing FCCB white papers is available through the Intel University class, Writing FCCB White Papers, class code PTD007692. C. FCCB System Levels The various facilities systems that are within the scope of the Fab FCCB are categorized into four levels: A, B, C, and E. LEVEL A LEVEL B LEVEL C LEVEL E SYSTEM LEVELS DEFINITION Changes to Level A systems carry the highest risk to factory output. Typically, these are systems that actually contact the wafer surface or directly impact manufacturing operations. Changes to Level B systems carry a moderate amount of risk to factory output. These systems do not typically contact the wafer surface but are critical to process tool operations. Changes to Level C systems carry a minimal amount of risk to factory output. These systems do not contact the wafer surface but are still critical to building systems operations. Changes to Level E (Environmental) systems carry the risk of changing or exceeding the factory’s chemical or gaseous effluent upper limits which impact operating permits. The complete list of factory facilities systems and their associated FCCB level are as follows: Rev Date 19-May-1999 Page 6 of 12 FCCB System Levels Level A Systems Level B Systems High Purity Systems - Specialty gases - HP nitrogen - Oxygen - HP argon - Hydrogen - Helium - Bulk chemical delivery - Planar chemical delivery - Ultra-pure w ater (ambient) - Hot Ultra-pure w ater - Process tool vacuum pumps - Process tool pump forelines - Process equipment point of use effluent treatment systems Level C Systems Process Tool Utilities - General Bldg. Utilities Electricity Industrial w ater Process Cooling w ater House Process vacuum Tool pedestals Tool blocks Transformers Conditioners - General House Gases - Oil Free Air - Utility Nitrogen - Construction Argon Chilled w ater City w ater Condenser w ater Fire Protection HPM Make-up air/exhaust Heating w ater House vacuum Instrument air Security systems Smoke exhaust Steam Venturi nitrogen Telecommunications Radio communications Boilers Cleanroom Environment Support Cleanrooms - Fab recirc air Fab makeup air Cleanroom envelope Cleanroom w all changes General Support Room HVAC - Gow nroom - Sort - C4 - Monitoring Systems - FMS Base System - Life Safety Systems - Breathing Air System Level E Systems Air Emission Devices - House scrubbers VOC Treatment HAPs Duct Scrubber PFC Recycle Ammonia Scrubber General/Heat exhaust Liquid Effluent Systems - AWN / CAW C4 Waste Systems URW HF Treatment KD-100 Waste Treatment Sulfuric Waste Collection Solvent Waste Collection Phosphoric Waste System Subfab SCR rooms Gas Pad Trench BCR rooms Lead reclaim w aste Dilute lead w aste Concentrated lead w aste Organic lead w aste EG/EG3 Ethyl Lactate NMP (PRS) General Solvent - Fire alarm - Voice evacuation - H2 detection - O2 depletion - Liquid leak detection - HPM leak detection D. FCCB Change Degrees The amount or “degree” of change is described as either a change degree 1, 2, 3, or 4. A change degree 1 would be the most significant amount of change incurred by the facilities system while a change degree 4 would be the least amount of change incurred by the facilities system. Change Degree Descriptions Change Degree Description A change in the OUTPUT or Change PERFORMANCE of a particular system. Degree 1 This would also include items such as the Example(s) A change in the temperature of the delivered UPW would be a degree 1 change for the UPW system. system reliability. Rev Date 19-May-1999 Page 7 of 12 Change Degree Descriptions Change Degree Description A change in the DESIGN, or a Change DIFFERENT MATERIAL in the wetted Degree 2 stream, of a particular system which is not expected to affect the performance, reliability, or output of the system. DESIGN is defined as any one of the following: 1. the addition or deletion of a component or a unit operation in the system 2. the rearrangement (i.e., different order) of unit operations 3. changing/switching the building facilities systems that are connected to the tool (input or output) 4. a change that modifies or does not meet the documented design criteria (Master Package Facilities Data Sheet, Facilities Master Specs, Facilities System Design Specs, Master Equipment Installation Standards) Example(s) Different Material example: A lower grade of stainless steel for the high purity Nitrogen system laterals Different Design examples: 1. Addition of new UV lamp in the UPW system 2. Changing the order of the UPW unit operations. 3. Switching an etcher exhaust from scrubbed exhaust to general exhaust. 4. Installing a pump Foreline that is 22 feet long when the Master Package Facilities Data Sheet states a 20 foot maximum or a change that results in the Facilities Master Specs requiring modification. Change A change in one or more CRITICAL Degree 3 COMPONENTS in a particular system. A different high purity UPW valve which has the same specifications as the prior valve and System controls, software, and monitoring it is not expected to affect the quality or are considered a critical component as well performance of the UPW system is a degree 3 as the valves, fittings, etc. change. The addition or deletion of an approved supplier on an FT master document is a degree 3 change. Change A change in one or more NON-CRITICAL A change in the distribution pump motor for Degree 4 COMPONENTS in a particular system. the UPW system would be considered a degree 4 change since the motor itself is not in the "wetted" stream of the UPW system. Rev Date 19-May-1999 Page 8 of 12 E. FCCB Change Classification Matrix Taken together, the system level and change degree combine to produce an overall change class. The matrix below defines this relationship. Change Degree 1 Different Output 2 Different Design 3 Different Critical Component 4 Different NonCritical Component LEVEL A SYSTEM LEVELS LEVEL B LEVEL C LEVEL E Class III Class IV Class V Class IV Class III Class V Class V Class IV Class IV Class V Project Team Class V Class V Project Team Project Team Project Team F. FCCB White Paper: Required Review Forums As noted above, the overall classification of the white paper determines the amount of review that is required. The diagram below gives a high level summary of what is required for the different classifications of FCCB white papers. Two much more detailed flowcharts that describe the white paper flow can be found in the appendix of this document. “Project Team” changes do not require a white paper unless the cost of the project exceeds $50K in the virtual factory. This means that any change that falls into one of the following categories: B-4, C-3, C-4, or E-4, and the cost of the total project (sum of the cost for all affected factories) exceeds $50K, requires a white paper. “Project Team” changes that will result in the modification of an FT master document will require submittal of an FCCB Project Team Document Change Order. This document will be reviewed and approved by the appropriate FT owner and submitted to the FCCB Admin for tracking via the post-FCCB white paper flowchart (see appendix). Rev Date 19-May-1999 Page 9 of 12 Simplified Pre-FCCB White Paper Flow FCCB White Paper Generated Facilities Sponsors Facilities Type of White Pape r Eqpt Install Equipment Installation Sponsors Block Change Review Facilities XJET Review Process JET JIQT XJET Reviews Class III, IV and V White Papers Class III, IV and V White Papers FCCB Review Class III White Papers PCCB Review Note: Refer to the appendix for a detailed flowchart of the white paper review process Rev Date 19-May-1999 Page 10 of 12 9. Appendix B: FCCB Change Classification Examples CHANGE LEVEL DEGREE WHITE PAPER? WHY 1. Hydrogen from new supplier 2. Fab recirc units will have more capacity and different configuration 3. Change design of spec gas cabinet A 3 Yes A 2 Yes (III) Different critical component which wafer sees Different design to a part of the system which affects the cleanroom environment A 4 Yes (V) 4. Change software which provides manmachine interface to FMS 5. Add critical PCW system 6. Change vendor for transformers or power conditioners 7. Change method of labeling electric wiring or valves B 1 Yes (IV) B 2 B 3 Yes (V) Yes (V) B 4 No 8. Change vacuum pump vendor who has lower vacuum capability 9. Use air cooled chillers instead of water cooled 10. Change fan vendor for smoke exhaust system 11. Change motor vendor in smoke exhaust fan A 1 Yes (III) This is a different design, splitting PCW into PCW and CPCW Critical component because the electric current is affected directly by the transformer or power conditioner. This is a non-critical component of the system; it will not affect the quality of the power or fluid flowing through the system. This is a different output to a B level system. C 2 Yes (V) This would be a different design of chiller. C 3 No C 3 or 4 No E 2 Yes (IV) This is a different critical component as the fan “sees” the smoke exhausted air stream. Project Team decision If the exhaust stream is isolated from the motor, e.g. belt drive, this would be degree 4 but if the exhaust stream flows over the motor this would be degree 3. Both are Project Team decisions. This is a different design. Output is expected to be same. 12. Change from vertical scrubbers to horizontal scrubbers Rev Date 19-May-1999 Non-critical component; houses gas cylinder but doesn’t necessarily affect the gas itself. Different output is expected; format will probably be different; operation will be different. Page 11 of 12 CHANGE LEVEL DEGREE WHITE PAPER? 13. Change heat exchanger vendor in C4 waste system 14. Change boiler O2 controller manufacturer E 3 Yes Different critical component - the heat exchanger “sees” the waste. E 4 No 15. Changing the process vacuum pump model from dry to wet and the supplier. 16. Adding new components to a existing approved Fab or Subfab tool block 17. Removing the liquid leak detection from the wet stations in the Fab. A 2 Yes Different non-critical component because the hot water is the critical fluid here, not the flue gas which is what the analyzer acts on. This would be a different design. B 2 Yes A different design changing space in the Fab or Subfab plus changes in the Master Design package and site layouts. B 3 Yes This is a different critical component change, to the monitoring system supporting the Fab. Rev Date 19-May-1999 WHY Page 12 of 12