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Chapter 1
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Goal of This Tutorial
- Understand the process of testing
- Get familiar with the terms used in testing
- Testing as a problem of economics
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Introduction
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IC Design and Manufacture process
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Design Phase
- Specification
- Function and performance requirements
- Die size estimation
- Power analysis
- Early I/O assignment
- Architecture Design
- High-level description block diagrams
- IP/Cores selection(to a specific platform)
- SW/HW partition/design
- Chip Design
- Logic Synthesis
- Timing verification
- Placement and Route and Layout
- Physical synthesis
- Test development and plan
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Production Phase
- Fabrication
- Test
- First silicon debug
- Characterization
- Production tests
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VLSI Testing
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Objectives
- Ensure product quality
- Diagnosis & repair
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Challenges
- Test time exploded for exhaustive testing
- Too many input pins → too many input patterns
- High automatic test equipment (ATE) cost for functional tests
- Testing circuits with high clock rates
- Deep sub-micron/nano effects
- Test power > design power
- Integration of analog/digital/memories
- SOC complexities
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Costs
- Test equipment cost
- Analog/digital signal and measuring instrumentation
- Test head
- Test controller (computer & storage)
- Test development cost
- Test planning
- Test program development
- Debug
- Testing-time cost
- Time using the equipment to support testing
- Time to market
- Test personnel cost
- Training
- Working
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Types
- Characterization testing
- Design debug and verification
- Determine the characteristics of chips in silicon
- Setup final specifications and production tests
- Production testing
- To all fabricated parts
- To enforce quality requirements
- The test set is short
- High coverage of modeled faults
- Test cost and time are the main drivers
- Failure mode analysis(FMA)
- To failed parts
- To locate the cause of misbehavior
- Results can be used to improved the design or the manufacturing process
- An important step for improving chip production yield
- 分支主題 4
- Chapter 2
- Chapter 3
- Chapter 4
- Chapter 5
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Special Topic
- WAT and Testing Structure Design