KR870008499A - 회로 기판 검사 장치 및 그 방법 - Google Patents
회로 기판 검사 장치 및 그 방법 Download PDFInfo
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- KR870008499A KR870008499A KR870001425A KR870001425A KR870008499A KR 870008499 A KR870008499 A KR 870008499A KR 870001425 A KR870001425 A KR 870001425A KR 870001425 A KR870001425 A KR 870001425A KR 870008499 A KR870008499 A KR 870008499A
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- circuit board
- ray
- measurement
- image
- electronic
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
- G01N23/18—Investigating the presence of flaws defects or foreign matter
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0004—Industrial image inspection
- G06T7/0006—Industrial image inspection using a design-rule based approach
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
- G01N23/083—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the radiation being X-rays
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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
- G01R31/304—Contactless testing of printed or hybrid circuits
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10116—X-ray image
- G06T2207/10121—Fluoroscopy
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30108—Industrial image inspection
- G06T2207/30141—Printed circuit board [PCB]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30108—Industrial image inspection
- G06T2207/30152—Solder
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S378/00—X-ray or gamma ray systems or devices
- Y10S378/901—Computer tomography program or processor
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Pathology (AREA)
- Immunology (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Theoretical Computer Science (AREA)
- Quality & Reliability (AREA)
- General Engineering & Computer Science (AREA)
- Toxicology (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제 2 도는 제 1 도의 시스템의 주구성 부품의 블럭 다이어그램.
제 3 도는 제 1 도 및 2도의 시스템의 작동 흐름도.
제 4 도는 검사 리스트 프로그램의 블럭 다이어그램.
Claims (19)
- 납땜 연결부를 가진 회로기판 선택부의 구조적 특성을 측정하기 위한 장치에 있어서, X선 빔을 제공하기 위한 X선 수단과, 회로 기판을 수용하며 상기 X선 빔내에 회로기판을 선택적으로 배치시키기 위한 다중-축 배치 수단과, 회로기판을 통해 전달되는 상기 X선 빔으로부터의 X선을 검출하여 전자 이메지를 제공하기 위한 이메징 수단과, 상기 전자 이메지를 그레이 스케일의 코드화 이메지로 변환시키기 위한 처리수단과, 측정 알고리즘이 라이브러리로부터의 선택된 측정 알고리즘에 의한 상기 그레이 스케일 코드화 이메지상의 예정된 연산 측정을 이행하며, 소정의 구조 특성에 따르는 예정의 측정 표준으로부터의 상기 그레이 스케일 코드화 이메지의 상기 측정의 변화에 따르는 출력을 제공하기 위한 연산수단을 구비하는 것을 특징으로 하는 회로기판 검사장치.
- 제 1 항에 있어서, 상기 X선 빔에서의 X선의 에너지 스펙트럼을 수정하기 위한 필터를 더 구비하는 것을 특징으로 하는 회로기판 검사장치.
- 제 1 항에 있어서, 상기 이메징 수단은 고형 검출기를 구비하는 것을 특징으로 하는 회로기판 검사장치.
- 제 1 항에 있어서, 상기 이메징 수단은, 회로기판을 통해 전달되는 X선 강도에 대응하는 광이메지를 제공하기 위한 광이메징 수단과; 상기 광 이메지를 관련 전기 이메지로 변환 시키기 위한 전자 이메징 수단을 구비하는 것을 특징으로 하는 회로기판 검사장치.
- 제 4 항에 있어서, 상기 광이메징 수단은, 상기 회로 기판을 통해 전달되는 X선을 수신하기 위해 배치되는 신티레이팅 스크린을 구비하는 것을 특징으로 하는 회로기판 검사장치.
- 제 4 항에 있어서, 상기 전자 이메징 수단은, 비데오 카메라와, 상기 광 이메징 수단에서 상기 비데오 카메라로 상기 광이메지를 반사시키기 위해 상기 비데오 카메라에 인접하게 장착된 반사 수단을 구비하는 것을 특징으로 하는 회로기판 검사장치.
- 제 1 항에 있어서, 상기 처리 수단은 고속 디지탈 그레이 스케일 이메지 처리기를 구비하는 것을 특징으로 하는 회로기판 검사장치.
- 제 1 항에 있어서, 상기 다중-축 배치 시스템은, 예정된 위치 신호를 제공하기 위해 상기 연산 수단에 의해 발생되는 지시신호에 응답하는 제어 수단과, X, Y 및 Z수직축상에 장착되며 각축에서 회전하는 회로기판을 이동시키기 위해 상기 위치신호에 응답하는 이동 테이블을 구비하는 것을 특징으로 하는 회로기판 검사장치.
- 제 1 항에 있어서, 상기 X선 수단은 전자 X-선 소오스를 구비하는 것을 특징으로 하는 회로기판 검사장치.
- 제 1 항에 있어서, 상기 그레이 스케일 코드화 이메지는 회로 기판의 뢴트겐 밀도를 나타내는 것을 특징으로 하는 회로기판 검사장치.
- 제 1 항에 있어서, 상기 연산 수단은 상기 출력단에 상기 측정이 상기 예정된 측정 표준내인가를 나타내는 표식을 제공하는 것을 특징으로 하는 회로기판 검사장치.
- 제 1 항에 있어서, 상기 출력은 또다른 회로 기판의 제어를 처리하기 위해 측정 데이타를 포함하는 것을 특징으로 하는 회로기판 검사장치.
- 제 1 항에 있어서, 상기 출력은 테스트하에서 회로기판의 품질을 제어하기 위한 측정 데이타를 포함하는 것을 특징으로 하는 회로기판 검사장치.
- 제 1 항에 있어서, 상기 장치는 전자 및 기계장치 및 소자를 측정하는 것을 특징으로 하는 회로기판 검사장치.
- 납땜 연결부를 이용하며, 상부에 소자를 가진 회로기판의 구조적 특성을 결정하기 위한 방법에 있어서 회로기판을 X선 소오스 빔에 최적으로 노출시키기 위해 다중축 배치 수단에 의해 조정될 수 있는 회로 기판을 지지하는 단계와, 상기 회로기판을 침투하기에 충분한 에너지를 가진 X선 빔에 회로기판을 노출시키는 단계와, 회로기판을 통해 전달되는 X선을 검출하며 전자 이메지를 제공하는 단계와, 상기 전자 이메지를 그레이 스케일 코드화 이메지로 변환시키는 단계와, 결정되는 구조 특성에 의해 측정 알고리즘의 라이브러리로부터 선택된 최소한 한 측정 알고리즘을 사용하여 상기 그레이 스케일 코드화 이메지에 대해 예정된 연산 측정을 이행하는 단계와, 소정의 구조 특성에 대응하는 예정된 측정 표준으로부터 상기 연산 측정의 변화에 따르는 출력을 제공하는 단계를 구비하는 것을 특징으로 하는 회로기판 검사방법.
- 제15항에 있어서, 상기 출력은 상기 측정이 상기 예정된 측정 표준내 인가의 표식으로서의 제품 재질 제어 데이타를 포함하는 것을 특징으로 하는 회로기판 검사방법.
- 제15항에 있어서, 상기 출력은 조사된 회로기판 소자의 구조특성에 관련된 정량 데이타를 포함하는 것을 특징으로 하는 회로기판 검사방법.
- 제15항에 있어서, 검출단계는, 회로기판을 통과하는 X선 통로에 신티레이팅 스크린을 배치시키며, 여기서 상기 신티레이팅 스크린은 회로기판을 통과하는 X선의 광 이메지를 발생시키는 단계와, 비데오 이메징 시스템으로 상기 신티레이팅 스크린에 의해 발생되는 광이메지를 시청하는 단계와, 상기 비데오 이메징 시스템에 의해 관찰되는 광이메지에 대한 전자 신호를 제공하는 단계를 구비하는 것을 특징으로 하는 회로기판 검사방법.
- 제15항에 있어서, 예정된 연산측정을 이행하는 단계는, 이미 구성된 알고리즘의 라이브러리로부터 하나 또는 그 이상의 측정 알고리즘을 선택하는 단계와, 상기 알고리즘에 부합되는 X선 검출을 제어하는 단계와, 상기 측정치를 전자 기억 수단에 기록시키는 단계를 구비하는 것을 특징으로 하는 회로기판 검사방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/831,997 US4809308A (en) | 1986-02-20 | 1986-02-20 | Method and apparatus for performing automated circuit board solder quality inspections |
US831.997 | 1986-09-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR870008499A true KR870008499A (ko) | 1987-09-26 |
Family
ID=25260392
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR870001425A KR870008499A (ko) | 1986-02-20 | 1987-02-20 | 회로 기판 검사 장치 및 그 방법 |
Country Status (6)
Country | Link |
---|---|
US (2) | US4809308A (ko) |
EP (1) | EP0236001B1 (ko) |
JP (1) | JP2790804B2 (ko) |
KR (1) | KR870008499A (ko) |
AT (1) | ATE66744T1 (ko) |
DE (1) | DE3772411D1 (ko) |
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EP0236001B1 (en) | 1991-08-28 |
USRE35423E (en) | 1997-01-14 |
EP0236001A3 (en) | 1988-08-10 |
DE3772411D1 (de) | 1991-10-02 |
JP2790804B2 (ja) | 1998-08-27 |
ATE66744T1 (de) | 1991-09-15 |
JPS62219632A (ja) | 1987-09-26 |
US4809308A (en) | 1989-02-28 |
EP0236001A2 (en) | 1987-09-09 |
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