JP2008534928A - マルチコア集積回路における同時コア試験 - Google Patents
マルチコア集積回路における同時コア試験 Download PDFInfo
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- JP2008534928A JP2008534928A JP2008503093A JP2008503093A JP2008534928A JP 2008534928 A JP2008534928 A JP 2008534928A JP 2008503093 A JP2008503093 A JP 2008503093A JP 2008503093 A JP2008503093 A JP 2008503093A JP 2008534928 A JP2008534928 A JP 2008534928A
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- 238000012360 testing method Methods 0.000 title claims abstract description 278
- 238000000034 method Methods 0.000 claims abstract description 57
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- 238000004891 communication Methods 0.000 claims description 8
- 239000013598 vector Substances 0.000 abstract description 19
- 230000008569 process Effects 0.000 description 35
- 238000013461 design Methods 0.000 description 10
- 238000011144 upstream manufacturing Methods 0.000 description 7
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- 238000004458 analytical method Methods 0.000 description 3
- 230000001427 coherent effect Effects 0.000 description 3
- 238000011990 functional testing Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
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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
- G01R31/318558—Addressing or selecting of subparts of the device under test
- G01R31/318563—Multiple simultaneous testing of subparts
-
- 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
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- Semiconductor Integrated Circuits (AREA)
- Test And Diagnosis Of Digital Computers (AREA)
Abstract
Description
チップマルチプロセッサ(CMP)などの多くのICは、このアプローチ法にとって非常に複雑である。また、機能試験に求められる機能試験ベクトル群は、利用可能な自動試験装置(ATE)には大きすぎるおそれがある。
以下の図面と併せて以下の詳細な説明を考慮すれば、本発明をさらに理解することができる。
Claims (10)
- 集積回路であって、
複数のロジックコアと、
前記複数のロジックコアに結合されたスキャン試験ハードウェアと、を有し、
前記スキャン試験ハードウェアは、
前記複数のロジックコアに入力スキャン試験データを入力し、
前記複数のロジックコアに対して同時にスキャン試験を行い、
前記複数のロジックコアからのスキャン試験結果を自動試験装置(ATE)に同時に出力し、
スキャン試験結果を出力するために、前記スキャン試験ハードウェアは、前記複数のロジックコアのそれぞれからの前記スキャン試験結果データの要素が、前記ATEのストローブ期間中において前記ATEへの入力チャンネル上に存在するように、前記スキャン試験結果を時分割多重化するよう構成されている、集積回路。 - 請求項1記載の集積回路であって、前記複数のロジックコア及び前記スキャン試験ハードウェアとは異なる1つ以上のハードウェア機能を更に有する、集積回路。
- 請求項2記載の集積回路であって、前記1つ以上のハードウェア機能には、通信コントローラ及び/又はメモリコントローラが含まれ、前記各ロジックコアは、プロセッサコアである、集積回路。
- 請求項2記載の集積回路であって、前記スキャン試験ハードウェアは、前記1つ以上のハードウェア機能及び前記複数のロジックコアを同時に試験するよう構成されている、集積回路。
- 請求項2記載の集積回路において、前記スキャン試験ハードウェアは、前記1つ以上のハードウェア機能の試験が、前記複数のロジックコアからのスキャン試験結果データによる影響を受けないように構成されている、集積回路。
- 単一の集積回路内に含まれる複数のロジックコアに対してスキャン試験データを入力し、
スキャン試験を複数のロジックコアに対して同時に実行し、
前記複数のロジックコアからのスキャン試験結果データを前記自動試験装置(ATE)に同時に出力し、
前記出力では、前記複数のロジックコアのそれぞれからの前記スキャン試験結果データの要素が、前記ATEのストローブ期間中において前記ATEへの入力チャンネル上に存在するように、前記スキャン試験結果を時分割多重化する、方法。 - 請求項6記載の方法であって、前記集積回路は、更に、前記複数のロジックコアとは異なる1つ以上のハードウェア機能を有し、前記1つ以上のハードウェア機能には、通信コントローラ及び/又はメモリコントローラが含まれ、前記各ロジックコアは、プロセッサコアである、方法。
- 請求項6記載の方法であって、前記集積回路は、更に、前記複数のロジックコアとは異なる1つ以上のハードウェア機能を有し、前記1つ以上のハードウェア機能と前記複数のロジックコアとを同時に試験する、方法。
- 請求項6記載の方法であって、前記集積回路は、更に、前記複数のロジックコアとは異なる1つ以上のハードウェア機能を有して、前記1つ以上のハードウェア機能の試験が前記複数のロジックコアからのスキャン試験結果データによる影響を受けないようにする、方法。
- 試験システムであって、
自動試験装置(ATE)と、
前記ATEに結合された試験されるデバイス(DUT)と、請求項1〜5のいずれかに記載された集積回路とを有する試験システム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/086,924 | 2005-03-22 | ||
US11/086,924 US7685487B1 (en) | 2005-03-22 | 2005-03-22 | Simultaneous core testing in multi-core integrated circuits |
PCT/US2006/010233 WO2006102325A1 (en) | 2005-03-22 | 2006-03-21 | Simultaneous core testing in multi-core integrated circuits |
Publications (2)
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JP2008534928A true JP2008534928A (ja) | 2008-08-28 |
JP5723515B2 JP5723515B2 (ja) | 2015-05-27 |
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JP2008503093A Active JP5723515B2 (ja) | 2005-03-22 | 2006-03-21 | マルチコア集積回路における同時コア試験 |
Country Status (8)
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---|---|
US (1) | US7685487B1 (ja) |
EP (1) | EP1872146B1 (ja) |
JP (1) | JP5723515B2 (ja) |
KR (1) | KR101256976B1 (ja) |
CN (1) | CN101147077B (ja) |
DE (1) | DE602006003201D1 (ja) |
TW (1) | TWI407122B (ja) |
WO (1) | WO2006102325A1 (ja) |
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Also Published As
Publication number | Publication date |
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WO2006102325A1 (en) | 2006-09-28 |
TW200643441A (en) | 2006-12-16 |
DE602006003201D1 (de) | 2008-11-27 |
US7685487B1 (en) | 2010-03-23 |
EP1872146B1 (en) | 2008-10-15 |
KR20070121011A (ko) | 2007-12-26 |
JP5723515B2 (ja) | 2015-05-27 |
CN101147077B (zh) | 2010-09-29 |
TWI407122B (zh) | 2013-09-01 |
KR101256976B1 (ko) | 2013-04-19 |
EP1872146A1 (en) | 2008-01-02 |
CN101147077A (zh) | 2008-03-19 |
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