1 Collaborative Alliance for Semiconductor Test (CAST) STDF: New Frontiers Ajay Khoche Chairman, STDF CAST Working Group
Dec 26, 2015
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Collaborative Alliance for Semiconductor Test (CAST)
STDF: New Frontiers
Ajay KhocheChairman, STDF CAST Working Group
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Agenda
• Welcome• Review of SEMI meeting guidelines
and Membership requirements• Evolution of STDF• New Frontiers• Discussions
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SEMIANTITRUST GUIDELINES
SEMI activities are a coordinated effort among competitors in the semiconductor equipment and materials industry and are, therefore, subject to antitrust laws. Although this coordination is perfectly legal under U.S. antitrust laws, we want to make sure that no antitrust risks are raised by the manner in which the SEMI program is carried out. Accordingly, these guidelines may go somewhat beyond the prohibitions of the law, but that is done in the interest of safety.
The penalties for violating antitrust laws can be quite severe, including large fines and even imprisonment of individuals found guilty of illegal conduct. Contrary to the popular belief that the government has relaxed antitrust enforcement, in recent years the Justice Department has recommended jail sentences for the majority of persons convicted of violating antitrust laws. Moreover, the U.S. Supreme Court has ruled that a trade association may be held legally responsible for the unauthorized, as well as authorized, acts of its members. Accordingly, every effort must be made to avoid even the appearance of impropriety.
LAWFUL ACTIVITIES
As a basic premise, the goals of SEMI are clearly lawful. The proposed activities, if properly conducted, will not be found to violate the antitrust laws because they will not have an adverse effect on the competitive market place.SEMI relies heavily on the judgment of SEMI staff members to see that topics which may give an appearance of an agreement that would violate antitrust laws are not discussed at SEMI meetings. The presence of a SEMI staff member at a meeting, however, should not invite probing to determine how far a discussion can proceed before it becomes apparent that it is improper and is cut off. Each SEMI member has the responsibility in the first instance to avoid raising improper subjects for discussion. This reminder has been prepared to ensure that participants in SEMI meetings are aware of this obligation.
UNLAWFUL ACTIVITIES
The most common violations of the antitrust laws are agreements among competitors to fix prices or allocate customers. As for SEMI, the most important thing to keep in mind is that its purpose is to promote the semiconductor equipment and materials industry, sponsor education and training, and promote industry standards. SEMI does not market particular semiconductor equipment or materials products. Accordingly, it is not the business of SEMI to consider or discuss matters relating to product development marketing, purchasing, or pricing decisions of individual companies.
The Do's and Don'ts presented below highlight only the most basic antitrust principles.Participants in SEMI meetings should consult counsel in all cases involving specific situations, interpretations, or advice.
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SEMIANTITRUST GUIDELINES
DO NOT
1. DO NOT IN FACT OR APPEARANCE, discuss or exchange information regarding:(a) Individual company current or projected prices, price changes, price differentials, markups, discounts, allowances, terms and conditions of sale, including credit terms, etc., or data that bear on prices, including profits, margins or cost.
(b) Industry pricing policies, price levels, price changes, differentials, or the like.
(c) Changes in industry production, capacity, or inventories.
(d) Individual company bids or intentions to bid for particular products, procedures for responding to bid invitations, or specific contractual arrangements.
(e) Plans of individual companies concerning the design, characteristics, production, distribution, marketing, or introduction dates of particular products, including proposed territories or customers.
(f) Matters relating to actual or potential individual suppliers that might have the effect of excluding them from any market or of influencing the business conduct of firms toward such suppliers or customers.
(g) Individual company current or projected cost of procurement, development, or manufacture of any product.
(h) Individual company market shares for any product or for all products.
DO NOT discuss or exchange information regarding the above matters during social gatherings incidental to SEMI-sanctioned meetings, even in jest.
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SEMIANTITRUST GUIDELINES
DO
1. Adhere to prepared agendas for all SEMI meetings.
2. Insist that meeting minutes be prepared and distributed to all participants, and object whenever meeting minutes do not accurately reflect the matters which transpired.
3. Understand the purposes and authority of each SEMI committee or other group in which you participate.
4. Consult with SEMI's legal counsel or your company counsel on all antitrust questions related to SEMI meetings.
5. Protest against any discussions or meetings which appear to violate the antitrust laws, disassociate yourself from any such discussions or activities, leave any meeting in which they continue and report the activity to the SEMI President and CEO so that similar conduct can be avoided in the future.
SEMI's policy is to discuss thoroughly with legal counsel any proposed programs or policy decisions before they are implemented. If any participant has a question as to the legality of a proposed course of action, the matter should be immediately referred to the SEMI President and CEO who will discuss it with legal counsel. In this manner, SEMI can ensure continued pursuit of its legitimate objectives with maximum protection for its participants.
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Attendance requirement
• All attendees at Standards meetings need to register for Standards membership
http://www.semi.org/standardsmembership
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Stds Membership
SEMI Standards Membership Applications & Account InformationThere are no fees required to participate in the SEMI International Standards
Program. SEMI underwrites the costs of administering the program as a service to the industry. Meetings are open and anyone may attend. However, to participate as a member and receive information about the program, you are required to submit a membership application. This ensures that your contact information and interests are properly recorded in the database and that you will receive email notifications relevant to your interests.
As a registered member of a committee you will receive • notification of posting of minutes of all meetings of the committee, worldwide, • announcements and agendas of committee meetings in your region, • general information on related technical programs and STEPs (Standards Technical Education Programs)
As a registered voting member of a committee, you will also receive notification of all letter ballots of the committee, for which you are obligated to issue votes.
http://dom.semi.org/standards/stdsmbr.nsf/Mapp!openform
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Membership Web Page
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Need For Data
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We Need Data, But We don’t want this..
Producer
Consumer 2 Consumer 3Consumer 1 Consumer 4
ProducerProducer Producer
Lost $$$ Lost time Errors!!!
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We Are Much Better off with..
Producer
Consumer 2 Consumer 3Consumer 1 Consumer 4
ProducerProducer Producer
Save $$$ Save time Reduce/Eliminate Errors!!!
Standard
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STDF Has Served Us Well
• Standard Test Data Format• Designed by Teradyne • Format to Store the test data
collected by equipments e.g. ATE• Available free of Charge• Used widely today• Supported by many tools and
equipment
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STDF Evolution
Year1994 2006 2007 2010
STDF V4
STDF V4-2007
(Scan)
LegendDevelopment
Std Ready for Adaption
Teradyne
Scan ExtensionIndependent WG
Memory Extension
Independent WG ->SEMI/CAST WG/TF
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STDF Evolution and Scope
Test Equipment
Tested Entity
Tests
Application
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STDF V4 scope
IC A
TE
Prober/ Handler
Probe Card/ L
oadboard
Wafer
Package
Test Equipment
Tested Entity
Func
tiona
l
Param
etric
debug
Quality determination
Yield measurement/Process Diagnostics
Tests
Application
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STDF V4 – 2007 scope
IC A
TE
Prober/ Handler
Probe Card/ L
oadboard
Wafer
Package
Test Equipment
Tested Entity
Func
tiona
l
Param
etric
debug
Quality determination
Yield measurement/Process Diagnostics
Tests
Application
DFT/BIST
Volume Diagnosis
Scan
Mem
ory
Logic/memory Sub Die
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Scan Fail Datalog Status
• STDF Scan datalog standard is under deployment• Customers are now getting interested resulting in
more vendors working on plans to support it• STARC – Japan has agreed to make it part of their
diagnosis flow• Deployment Status
• ATE Companies– Verigy Supports it– Teradyne is developing it– Advantest :“discussions ongoing for support on T2000” – Credence: no firm plans communicated yet
• EDA– Mentor Committed – Synopsys: currently completing read support for STDF V4 , and plans to
support STDF V4-2007 in the future – Cadence: Most of our support at this point is through translators
• Verification tool (STDFNavigator Status)– > 10 Companies using it
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Memory Fail Datalog
• Group is still meeting regularly• Technical document is ready
• All issues resolved
• Undergoing final review by the team• Plan to submit for Ballot in July
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What’s Next
• Technology keeps moving• New applications are emerging• STDF need to evolve to meet the new
requirements of new applications
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STDF: New Frontier Forum
• Purpose– To provide a platform for discussing
requirements of emerging applications– To assess the need for starting an
extension project– To facilitate development of extensions
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Forum Logistics
• Medium: – Mostly Audio & WebEx– F2F meetings at major events e.g. SEMICON?
• Frequency: Bi-Weekly - YES• Day: Thu is good• Time: 9.00AM• Website: To be announced soon• Off Meeting communication:
– Email groups?– Blogs?– Discussion forums?
• Prefer: Blog/Forum over email…• Discussion Topics: To be announced in advance
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Topics Identified So Far
• System level datalog• 3D-Stacking• Adaptive test• Concurrent Test • Protocol Aware Testing • Additional Suggestions:
– Get in touch with me: [email protected]
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System Level Datalog
• Target application: Diagnosis, yield improvement, NTF
• Ability to datalog from ICs in board and system environments
• Ability log data from various instrument e.g. iJTAG in all integration levels
• Ability to store the information on test conditions, test equipments etc used in the testing in these environments
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3D Integration
• Target Application: Datalog for 3D stacks for diagnosis, yield improvements, quality improvements
• Requirements– Data Diversity
– Data from multiple cores (Memory, Logic, Analog, RF, MEMs)– Data from IC test(ers) System test(ers)– Data from multiple vendors of chips and components
– Data Access– How do get access to the data producers?– JTAG, iJTAG others (Possible overlap with System Level
datalog)– Non contact probing
– Data Volume– Higher complexity -> High data volume
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Adaptive Testing
• Target Application: CoT, OEE• Sample Requirements:
– Logging the data to facilitate decision making Ability to log statistics
– Ability to log decisions• Change in flow• Change in limit • Etc…
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Protocol Aware Testing
• Target Application: Debug, Diagnosis • Sample Requirements:
– Event based datalog – Links to protocol information – Etc..
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Concurrent Testing
• Target Application: Cot• Sample Requirements
– Ability to log data for tests running concurrently
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Requirements for Starting A new Project
• The requirements are identified• The scope is defined• The industry support is validated• The leaders are identified
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Comments/Suggestions
• Glenn: applications requiring radical changes• Interaction with other groups e.g. Test cell• Stacy: Consistent mechanism for something e.g. Test
conditions• Advanced sampling to reduce data volume• John Rowe: Reduce use & abuse (provide guidelines)• Mark Roos: We should ensure common underlying
architecture– Need to define consistent transport model– Provide datalog architecture for filtering, efficient
• Chris Suzor: Need to reuse discussions
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END