JPH09504152A - キャピラリ圧痕の検出方法および装置 - Google Patents
キャピラリ圧痕の検出方法および装置Info
- Publication number
- JPH09504152A JPH09504152A JP7528429A JP52842995A JPH09504152A JP H09504152 A JPH09504152 A JP H09504152A JP 7528429 A JP7528429 A JP 7528429A JP 52842995 A JP52842995 A JP 52842995A JP H09504152 A JPH09504152 A JP H09504152A
- Authority
- JP
- Japan
- Prior art keywords
- image
- wire
- lead
- indentation
- bond
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007373 indentation Methods 0.000 title claims abstract description 49
- 238000001514 detection method Methods 0.000 title description 3
- 238000000034 method Methods 0.000 claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims description 15
- 239000004065 semiconductor Substances 0.000 abstract description 10
- 230000003287 optical effect Effects 0.000 abstract description 7
- 238000005476 soldering Methods 0.000 abstract description 6
- 238000007689 inspection Methods 0.000 description 29
- 230000008569 process Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 238000012935 Averaging Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- YLJREFDVOIBQDA-UHFFFAOYSA-N tacrine Chemical compound C1=CC=C2C(N)=C(CCCC3)C3=NC2=C1 YLJREFDVOIBQDA-UHFFFAOYSA-N 0.000 description 3
- 229960001685 tacrine Drugs 0.000 description 3
- 238000012549 training Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67242—Apparatus for monitoring, sorting or marking
- H01L21/67288—Monitoring of warpage, curvature, damage, defects or the like
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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
- G01R31/2851—Testing of integrated circuits [IC]
- G01R31/2853—Electrical testing of internal connections or -isolation, e.g. latch-up or chip-to-lead connections
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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
- G01R31/302—Contactless testing
- G01R31/308—Contactless testing using non-ionising electromagnetic radiation, e.g. optical radiation
- G01R31/311—Contactless testing using non-ionising electromagnetic radiation, e.g. optical radiation of integrated circuits
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67242—Apparatus for monitoring, sorting or marking
- H01L21/67271—Sorting devices
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/74—Apparatus for manufacturing arrangements for connecting or disconnecting semiconductor or solid-state bodies
- H01L24/78—Apparatus for connecting with wire connectors
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L24/85—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a wire connector
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/02—Bonding areas; Manufacturing methods related thereto
- H01L2224/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
- H01L2224/05—Structure, shape, material or disposition of the bonding areas prior to the connecting process of an individual bonding area
- H01L2224/0554—External layer
- H01L2224/0555—Shape
- H01L2224/05552—Shape in top view
- H01L2224/05553—Shape in top view being rectangular
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/02—Bonding areas; Manufacturing methods related thereto
- H01L2224/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
- H01L2224/05—Structure, shape, material or disposition of the bonding areas prior to the connecting process of an individual bonding area
- H01L2224/0554—External layer
- H01L2224/0555—Shape
- H01L2224/05552—Shape in top view
- H01L2224/05554—Shape in top view being square
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/484—Connecting portions
- H01L2224/48463—Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a ball bond
- H01L2224/48465—Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a ball bond the other connecting portion not on the bonding area being a wedge bond, i.e. ball-to-wedge, regular stitch
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
- H01L2224/491—Disposition
- H01L2224/4912—Layout
- H01L2224/49171—Fan-out arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/74—Apparatus for manufacturing arrangements for connecting or disconnecting semiconductor or solid-state bodies and for methods related thereto
- H01L2224/78—Apparatus for connecting with wire connectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/74—Apparatus for manufacturing arrangements for connecting or disconnecting semiconductor or solid-state bodies and for methods related thereto
- H01L2224/78—Apparatus for connecting with wire connectors
- H01L2224/7825—Means for applying energy, e.g. heating means
- H01L2224/783—Means for applying energy, e.g. heating means by means of pressure
- H01L2224/78301—Capillary
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L2224/85—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a wire connector
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L2224/85—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a wire connector
- H01L2224/859—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a wire connector involving monitoring, e.g. feedback loop
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/42—Wire connectors; Manufacturing methods related thereto
- H01L24/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L24/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/42—Wire connectors; Manufacturing methods related thereto
- H01L24/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L24/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/00014—Technical content checked by a classifier the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01039—Yttrium [Y]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/11—Device type
- H01L2924/14—Integrated circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Health & Medical Sciences (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Electromagnetism (AREA)
- Toxicology (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
- Image Processing (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.オブジェクトを光学的に検出し、該オブジェクトの画像(イメージ)をディ ジタル化し分析する手段を備えたマシン・ビジョン・システムにおいて、リード にボンディングされたワイヤにボンディング・デバイスによって形成された圧痕 (へこみ)を自動的に検出する方法であって、 a.ロケーション、ワイヤ角度および許容画像相関のしきい値を示すパラメー タを含んでいる、理想化圧痕のグレーレベル・モデルを構築するステップと、 b.前記リードのディジタル化画像を獲得するステップと、 c.前記ディジタル化画像の正規化相関サーチを前記モデルを用いて行なうス テップと、 d.前記正規化相関サーチの結果を前記パラメータと比較するステップと、 e.結果の信号を判断メカニズムへ引き渡すステップとを含むことを特徴とす る方法。 2.オブジェクトを光学的に検出し、該オブジェクトの画像(イメージ)をディ ジタル化し分析する手段を備えたマシン・ビジョン・システムにおいて、リード にボンディングされたワイヤにボンディング・デバイスによって形成された圧痕 (へこみ)を自動的に検出する装置であって、 a.ロケーション、ワイヤ角度および許容画像相関のしきい値を示すパラメー タを含んでいる、理想化圧痕のグレーレベル・モデルを構築する手段と、 b.前記リードのディジタル化画像を獲得する手段と、 c.前記ディジタル化画像の正規化相関サーチを前記モデルを用いて行なう手 段と、 d.前記正規化相関サーチの結果を前記パラメータと比較する手段と、 e.結果の信号を判断メカニズムへ引き渡す手段とを備えたことを特徴とする 装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/236,212 | 1994-05-02 | ||
US08/236,212 US5642158A (en) | 1994-05-02 | 1994-05-02 | Method and apparatus to detect capillary indentations |
PCT/US1995/005320 WO1995030307A1 (en) | 1994-05-02 | 1995-05-01 | Method and apparatus to detect capillary indentations |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH09504152A true JPH09504152A (ja) | 1997-04-22 |
Family
ID=22888596
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7528429A Pending JPH09504152A (ja) | 1994-05-02 | 1995-05-01 | キャピラリ圧痕の検出方法および装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US5642158A (ja) |
JP (1) | JPH09504152A (ja) |
AU (1) | AU2430095A (ja) |
WO (1) | WO1995030307A1 (ja) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5581632A (en) * | 1994-05-02 | 1996-12-03 | Cognex Corporation | Method and apparatus for ball bond inspection system |
US6259827B1 (en) | 1996-03-21 | 2001-07-10 | Cognex Corporation | Machine vision methods for enhancing the contrast between an object and its background using multiple on-axis images |
US6075881A (en) | 1997-03-18 | 2000-06-13 | Cognex Corporation | Machine vision methods for identifying collinear sets of points from an image |
US6608647B1 (en) | 1997-06-24 | 2003-08-19 | Cognex Corporation | Methods and apparatus for charge coupled device image acquisition with independent integration and readout |
US6173070B1 (en) * | 1997-12-30 | 2001-01-09 | Cognex Corporation | Machine vision method using search models to find features in three dimensional images |
US6381375B1 (en) | 1998-02-20 | 2002-04-30 | Cognex Corporation | Methods and apparatus for generating a projection of an image |
US6687402B1 (en) | 1998-12-18 | 2004-02-03 | Cognex Corporation | Machine vision methods and systems for boundary feature comparison of patterns and images |
US6381366B1 (en) | 1998-12-18 | 2002-04-30 | Cognex Corporation | Machine vision methods and system for boundary point-based comparison of patterns and images |
US6212077B1 (en) | 1999-01-25 | 2001-04-03 | International Business Machines Corporation | Built-in inspection template for a printed circuit |
US6614926B1 (en) * | 1999-06-29 | 2003-09-02 | Cognex Corporation | Methods and apparatuses for generating from an image a model of an object |
US6684402B1 (en) | 1999-12-01 | 2004-01-27 | Cognex Technology And Investment Corporation | Control methods and apparatus for coupling multiple image acquisition devices to a digital data processor |
US6748104B1 (en) | 2000-03-24 | 2004-06-08 | Cognex Corporation | Methods and apparatus for machine vision inspection using single and multiple templates or patterns |
US6657707B1 (en) * | 2000-06-28 | 2003-12-02 | Advanced Micro Devices, Inc. | Metallurgical inspection and/or analysis of flip-chip pads and interfaces |
US6708574B2 (en) * | 2002-05-24 | 2004-03-23 | Agere Systems, Inc. | Abnormal photoresist line/space profile detection through signal processing of metrology waveform |
WO2005114422A2 (en) * | 2004-05-21 | 2005-12-01 | Pressco Technology Inc. | Graphical re-inspection user setup interface |
US8111904B2 (en) | 2005-10-07 | 2012-02-07 | Cognex Technology And Investment Corp. | Methods and apparatus for practical 3D vision system |
US8162584B2 (en) | 2006-08-23 | 2012-04-24 | Cognex Corporation | Method and apparatus for semiconductor wafer alignment |
US8466802B2 (en) * | 2008-03-13 | 2013-06-18 | Siemens Aktiengesellschaft | Manual connecting device |
CN113465529B (zh) * | 2021-08-31 | 2021-11-23 | 武汉飞恩微电子有限公司 | 一种基于视觉识别的芯片应变测量方法与系统 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4240750A (en) * | 1978-10-02 | 1980-12-23 | Hurd William A | Automatic circuit board tester |
JPS55154740A (en) * | 1979-05-23 | 1980-12-02 | Hitachi Ltd | Wire bonding device |
JPS6017044B2 (ja) * | 1979-07-23 | 1985-04-30 | 株式会社日立製作所 | 印刷配線板のパタ−ン検査装置 |
US4439010A (en) * | 1982-04-01 | 1984-03-27 | Spectron Development Laboratories, Inc. | Apparatus for combining optical images |
US4441248A (en) * | 1982-12-02 | 1984-04-10 | Stanley Electric Company, Ltd. | On-line inspection method and system for bonds made to electronic components |
JPS60263807A (ja) * | 1984-06-12 | 1985-12-27 | Dainippon Screen Mfg Co Ltd | プリント配線板のパタ−ン欠陥検査装置 |
JPS6362242A (ja) * | 1986-09-02 | 1988-03-18 | Toshiba Corp | ワイヤボンディング装置 |
JPH07111998B2 (ja) * | 1989-08-18 | 1995-11-29 | 株式会社東芝 | ワイヤボンディング検査装置 |
JPH0715926B2 (ja) * | 1990-09-14 | 1995-02-22 | 株式会社東芝 | ワイヤボンディング検査装置 |
JP2845601B2 (ja) * | 1990-10-09 | 1999-01-13 | 株式会社東芝 | ワイヤボンディング外観検査装置 |
JP2851151B2 (ja) * | 1990-10-12 | 1999-01-27 | 株式会社東芝 | ワイヤボンディング検査装置 |
US5204910A (en) * | 1991-05-24 | 1993-04-20 | Motorola, Inc. | Method for detection of defects lacking distinct edges |
JP2969403B2 (ja) * | 1991-12-02 | 1999-11-02 | 株式会社新川 | ボンデイングワイヤ検査装置 |
-
1994
- 1994-05-02 US US08/236,212 patent/US5642158A/en not_active Expired - Lifetime
-
1995
- 1995-05-01 WO PCT/US1995/005320 patent/WO1995030307A1/en active Application Filing
- 1995-05-01 AU AU24300/95A patent/AU2430095A/en not_active Abandoned
- 1995-05-01 JP JP7528429A patent/JPH09504152A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
WO1995030307A1 (en) | 1995-11-09 |
US5642158A (en) | 1997-06-24 |
AU2430095A (en) | 1995-11-29 |
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