KR101047533B1 - 멀티 페이즈 스캔체인을 구동하는 시스템온칩과 그 방법 - Google Patents
멀티 페이즈 스캔체인을 구동하는 시스템온칩과 그 방법 Download PDFInfo
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- KR101047533B1 KR101047533B1 KR1020070018582A KR20070018582A KR101047533B1 KR 101047533 B1 KR101047533 B1 KR 101047533B1 KR 1020070018582 A KR1020070018582 A KR 1020070018582A KR 20070018582 A KR20070018582 A KR 20070018582A KR 101047533 B1 KR101047533 B1 KR 101047533B1
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- Prior art keywords
- scan
- block
- scan chain
- functional blocks
- scan chains
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/317—Testing of digital circuits
- G01R31/3181—Functional testing
- G01R31/3185—Reconfiguring for testing, e.g. LSSD, partitioning
- G01R31/318533—Reconfiguring for testing, e.g. LSSD, partitioning using scanning techniques, e.g. LSSD, Boundary Scan, JTAG
- G01R31/318544—Scanning methods, algorithms and patterns
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C8/00—Arrangements for selecting an address in a digital store
- G11C8/12—Group selection circuits, e.g. for memory block selection, chip selection, array selection
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Tests Of Electronic Circuits (AREA)
- Semiconductor Integrated Circuits (AREA)
Abstract
Description
Claims (7)
- 기능 블록들과; 및상기 기능 블록들 각각에 제공되며, 서로 다른 위상을 가지는 복수의 클럭들에 각각 동기되어 스캔 테스트를 수행하는 복수의 스캔체인들을 포함하되,아이솔레이션 모드인 경우 상기 기능 블록들 각각의 내부는 상기 복수의 스캔체인을 통하여 테스트되고, 인터페이스 모드인 경우 상기 기능 블록들 중에서 인접한 기능 블록들 사이의 각각의 로직회로는 상기 복수의 스캔체인을 통하여 테스트되고, 상기 복수의 스캔체인들 각각은 멀티플렉서 또는 디멀티플렉서를 포함하고, 상기 복수의 스캔체인들은 상기 인터페이스 모드인 경우 상기 멀티플렉서와 상기 디멀티플렉서에 의하여 새로운 스캔체인으로 구성되는 시스템온칩.
- 제 1 항에 있어서,인터페이스 모드인 경우 상기 인접한 기능 블록들 사이의 로직회로는 상기 인접한 기능 블록들 각각에 속하는 복수의 스캔 체인들을 통해 테스트되는 시스템온칩.
- 제 1 항에 있어서,상기 스캔체인은 멀티플렉서와 플립플럽을 포함하는 복수의 스캔플립플럽으로 구성되는 시스템온칩.
- 제 3 항에 있어서,상기 스캔 테스트는,상기 스캔플립플럽에 테스트 데이터를 쉬프팅하여 입력하고,상기 기능 블럭의 정상동작을 수행하고,상기 기능 블럭의 정상동작 결과를 상기 스캔플립플럽을 통하여 쉬프트하여 출력하는 것을 포함하는 시스템온칩.
- 제 1 항에 있어서,상기 복수의 스캔 체인들은,아이솔레이션 모드 동안 상기 기능 블록 내부의 입력과 출력에 연결되고,인터페이스 모드 동안 상기 인접한 기능 블록들 사이의 조합회로의 입력과 출력에 연결되는 시스템온칩.
- 제 1 항에 있어서,상기 기능 블록들은 조합회로로 구성되는 시스템온칩.
- 제 1 항에 있어서,상기 복수의 스캔 체인들은 멀티 스캔 체인을 포함하는 시스템온칩.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070018582A KR101047533B1 (ko) | 2007-02-23 | 2007-02-23 | 멀티 페이즈 스캔체인을 구동하는 시스템온칩과 그 방법 |
US12/071,106 US7917821B2 (en) | 2007-02-23 | 2008-02-15 | System-on-chip performing multi-phase scan chain and method thereof |
Applications Claiming Priority (1)
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KR1020070018582A KR101047533B1 (ko) | 2007-02-23 | 2007-02-23 | 멀티 페이즈 스캔체인을 구동하는 시스템온칩과 그 방법 |
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KR20080078439A KR20080078439A (ko) | 2008-08-27 |
KR101047533B1 true KR101047533B1 (ko) | 2011-07-08 |
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KR1020070018582A KR101047533B1 (ko) | 2007-02-23 | 2007-02-23 | 멀티 페이즈 스캔체인을 구동하는 시스템온칩과 그 방법 |
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US (1) | US7917821B2 (ko) |
KR (1) | KR101047533B1 (ko) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8832616B2 (en) | 2011-03-18 | 2014-09-09 | Sage Software, Inc. | Voltage drop effect on static timing analysis for multi-phase sequential circuit |
US9116205B2 (en) | 2012-09-27 | 2015-08-25 | International Business Machines Corporation | Test coverage of integrated circuits with test vector input spreading |
KR102257380B1 (ko) * | 2014-12-22 | 2021-05-31 | 삼성전자주식회사 | 온칩 클록 컨트롤러를 포함하는 시스템온칩 및 이를 포함하는 모바일 장치 |
EP4279931A1 (en) * | 2022-05-21 | 2023-11-22 | Nxp B.V. | Method and apparatus for dynamically forming scan chains |
Citations (2)
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JPH11125662A (ja) | 1997-10-23 | 1999-05-11 | Oki Electric Ind Co Ltd | 半導体集積回路及びフルスキャン実行方法 |
JP2003240822A (ja) * | 2002-02-14 | 2003-08-27 | Matsushita Electric Ind Co Ltd | 半導体集積回路の設計方法及びテスト方法 |
Family Cites Families (20)
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KR900002770B1 (ko) * | 1986-08-04 | 1990-04-30 | 미쓰비시 뎅끼 가부시끼가이샤 | 반도체 집적회로장치 |
JP2556017B2 (ja) * | 1987-01-17 | 1996-11-20 | 日本電気株式会社 | 論理集積回路 |
JPH01270683A (ja) * | 1988-04-22 | 1989-10-27 | Mitsubishi Electric Corp | 半導体集積回路 |
KR100383728B1 (ko) | 1998-05-19 | 2003-05-12 | 가부시키가이샤 아드반테스트 | 반도체 디바이스 시험 장치 및 그 캘리브레이션 방법 |
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- 2007-02-23 KR KR1020070018582A patent/KR101047533B1/ko active IP Right Grant
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- 2008-02-15 US US12/071,106 patent/US7917821B2/en active Active
Patent Citations (2)
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JPH11125662A (ja) | 1997-10-23 | 1999-05-11 | Oki Electric Ind Co Ltd | 半導体集積回路及びフルスキャン実行方法 |
JP2003240822A (ja) * | 2002-02-14 | 2003-08-27 | Matsushita Electric Ind Co Ltd | 半導体集積回路の設計方法及びテスト方法 |
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US20080209290A1 (en) | 2008-08-28 |
KR20080078439A (ko) | 2008-08-27 |
US7917821B2 (en) | 2011-03-29 |
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