KR100790238B1 - 스캔 회로 - Google Patents
스캔 회로 Download PDFInfo
- Publication number
- KR100790238B1 KR100790238B1 KR1020010011927A KR20010011927A KR100790238B1 KR 100790238 B1 KR100790238 B1 KR 100790238B1 KR 1020010011927 A KR1020010011927 A KR 1020010011927A KR 20010011927 A KR20010011927 A KR 20010011927A KR 100790238 B1 KR100790238 B1 KR 100790238B1
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- South Korea
- Prior art keywords
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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
- G01R31/31721—Power aspects, e.g. power supplies for test circuits, power saving during test
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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
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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
- G01R31/31723—Hardware for routing the test signal within the device under test to the circuits to be tested, e.g. multiplexer for multiple core testing, accessing internal nodes
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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
- G01R31/31724—Test controller, e.g. BIST state machine
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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
- G01R31/3177—Testing of logic operation, e.g. by logic analysers
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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
- G01R31/318536—Scan chain arrangements, e.g. connections, test bus, analog signals
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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
- G01R31/318575—Power distribution; Power saving
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Tests Of Electronic Circuits (AREA)
- Semiconductor Integrated Circuits (AREA)
- Test And Diagnosis Of Digital Computers (AREA)
Abstract
Description
Claims (4)
- 삭제
- 삭제
- 삭제
- 스캔 회로로서,집적 회로의 반도체 기판 상에 형성되고, 테스트될 논리 회로를 포함하는 기능 회로와,직렬 접속된 스캔 셀들로 이루어지고, 상기 논리 회로에 접속되어 상기 논리 회로에 자극 신호를 전달하고 상기 논리 회로로부터 응답 신호를 수신하는 리드를 구비하고, 직렬 데이터 입력 리드 및 직렬 데이터 출력 리드를 구비하고, 자신의 동작을 제어하기 위한 제어 신호를 수신하는 제어 입력 리드를 구비하고, 상기 직렬 데이터 입력 리드에 접속되는 직렬 입력, 및 상기 직렬 데이터 출력 리드 및 개별 세트의 제어 입력 리드에 선택적으로 연결되는 직렬 출력 리드를 각각 갖는 선택가능한 개별 스캔 경로부들로 구성되는 스캔 경로 회로와,제어 입력들, 및 상기 스캔 경로 회로의 직렬 데이터 입력 리드에 접속되는 직렬 데이터 출력을 구비하는 테스트 데이터 생성기 회로와,제어 입력들, 및 상기 스캔 경로 회로의 직렬 데이터 출력 리드에 접속되는 직렬 데이터 입력을 구비하는 테스트 데이터 컴팩터 회로와,상기 테스트 데이터 생성기 회로의 제어 입력들 및 상기 컴팩터 회로의 제어 입력들에 접속되고, 상기 스캔 경로 회로의 제어 입력들에 연결되는 제어 출력 리드들을 구비하는 제어기, 및상기 제어기의 제어 출력 리드들을 상기 스캔 경로 회로의 상기 개별 세트의 제어 입력 리드들에 연결하고, 상기 제어기로부터 일 세트의 제어 신호를 수신하는 입력 리드들 및 각 스캔 경로부마다 제어 신호를 제공하는 일 세트의 출력 리드들을 포함하며, 상기 각 개별 스캔 경로부를 동작시키기 위해 상기 개별 세트의 제어 신호의 생성을 제어하는 상태 머신 및 상기 상태 머신에 접속되는 카운터 회로들을 포함하는 어댑터 회로들을 포함하는 스캔 회로.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18810900P | 2000-03-09 | 2000-03-09 | |
US60/188,109 | 2000-03-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010089208A KR20010089208A (ko) | 2001-09-29 |
KR100790238B1 true KR100790238B1 (ko) | 2007-12-31 |
Family
ID=22691804
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020010011927A KR100790238B1 (ko) | 2000-03-09 | 2001-03-08 | 스캔 회로 |
Country Status (5)
Country | Link |
---|---|
US (13) | US6763488B2 (ko) |
EP (1) | EP1146343B1 (ko) |
JP (1) | JP4971547B2 (ko) |
KR (1) | KR100790238B1 (ko) |
DE (1) | DE60108993T2 (ko) |
Cited By (1)
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CN109477868A (zh) * | 2016-07-15 | 2019-03-15 | 德克萨斯仪器股份有限公司 | 用于电子电路的内建自测试的系统和方法 |
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US6557129B1 (en) * | 1999-11-23 | 2003-04-29 | Janusz Rajski | Method and apparatus for selectively compacting test responses |
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2001
- 2001-03-07 EP EP01000044A patent/EP1146343B1/en not_active Expired - Lifetime
- 2001-03-07 DE DE60108993T patent/DE60108993T2/de not_active Expired - Lifetime
- 2001-03-08 KR KR1020010011927A patent/KR100790238B1/ko active IP Right Grant
- 2001-03-09 JP JP2001066990A patent/JP4971547B2/ja not_active Expired - Lifetime
- 2001-03-09 US US09/803,608 patent/US6763488B2/en not_active Expired - Lifetime
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2004
- 2004-07-06 US US10/886,206 patent/US7051257B2/en not_active Expired - Lifetime
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2006
- 2006-03-30 US US11/278,064 patent/US7526695B2/en not_active Expired - Lifetime
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2009
- 2009-03-18 US US12/406,348 patent/US7747919B2/en not_active Expired - Fee Related
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2010
- 2010-05-14 US US12/780,410 patent/US7925945B2/en not_active Expired - Fee Related
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2011
- 2011-03-09 US US13/043,778 patent/US8015466B2/en not_active Expired - Fee Related
- 2011-07-15 US US13/184,077 patent/US8261144B2/en not_active Expired - Lifetime
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2012
- 2012-08-02 US US13/565,128 patent/US8453025B2/en not_active Expired - Fee Related
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2013
- 2013-04-25 US US13/870,272 patent/US8566659B2/en not_active Expired - Fee Related
- 2013-09-11 US US14/023,717 patent/US9103881B2/en not_active Expired - Fee Related
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2015
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2016
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2017
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CN109477868A (zh) * | 2016-07-15 | 2019-03-15 | 德克萨斯仪器股份有限公司 | 用于电子电路的内建自测试的系统和方法 |
CN109477868B (zh) * | 2016-07-15 | 2022-04-05 | 德克萨斯仪器股份有限公司 | 用于电子电路的内建自测试的系统和方法 |
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