Component verification system

Journal Article · Mon Sep 01 04:00:00 EDT 1980 · IEEE Trans. Compon., Hybrids, Manuf. Technol.; (United States)

DOI:https://doi.org/10.1109/TCHMT.1980.1135620· OSTI ID:5770546

Schroeder, D D; Hines, R E

Typical hybrid microcircuits (HMC's) manufactured at the Bendix Corporation, Kansas City, MO, contain 100 beam lead devices and gold ribbon crossovers. Verification for the presence of these applique components historically has been done manually by comparing a visual aid to the HMC. All HMC's were verified visually, a process requiring 4 to 5 min/HMC. Approximately 12% of the defects were missed. A system has been developed for automatically verifying the presence of beam lead devices and ribbon crossovers. The component verification system (CVS) includes a minicomputer-controlled X-Y stage which indexes the HMC below a vidicon camera. The camera is interfaced to the computer through a video digitizer. Bendix-developed software uses the equipment capabilities to magnify and project a 5.1-mm/sup 2/ area onto a 177.8-mm/sup 2/ screen with the image data points addressable in a 512 by 480 line matrix. The image analysis software determines component presence based on data point brightness. The CVS can verify beam lead device and crossover presences on a typical HMC in fewer than 30 s. The part identification of any missing part is printed as an aid to rework. The CVS has reduced the time needed for component verification and has improved verification accuracy.

• Research Organization: Bendix Corp., Kansas City, MO
• DOE Contract Number: AC04-76DP00613
• OSTI ID: 5770546
• Journal Information: IEEE Trans. Compon., Hybrids, Manuf. Technol.; (United States), Journal Name: IEEE Trans. Compon., Hybrids, Manuf. Technol.; (United States) Vol. 3:3; ISSN ITTED
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420800* -- Engineering-- Electronic Circuits & Devices-- (-1989)
AUTOMATION
COMPUTERS
DEFECTS
ELECTRONIC CIRCUITS
FABRICATION
IMAGE PROCESSING
INSPECTION
MICROELECTRONIC CIRCUITS
PROCESSING
TELEVISION