Assignee
BELTRONICS INC
US14 patents
Top patents by PatentIndex Score
US6091488AJul 18, 2000
Method of and apparatus for automatic high-speed optical inspection of semi-conductor structures and the like through fluorescent photoresist inspection
BELTRONICS INC67 citations96
US4893346AJan 9, 1990
Apparatus for automatically inspecting objects and identifying or recognizing known and unknown portions thereof, including defects and the like, and method
BELTRONICS INC118 citations96
US4589140AMay 13, 1986
Method of and apparatus for real-time high-speed inspection of objects for identifying or recognizing known and unknown portions thereof, including defects and the like
BELTRONICS INC177 citations94
US7015445B2Mar 21, 2006
Method for optimizing inspection speed in low, and fluorescent light applications without sacrificing signal to noise ratio, resolution, or focus quality
BELTRONICS INC45 citations92
US6603877B1Aug 5, 2003
Method of and apparatus for optical imaging inspection of multi-material objects and the like
BELTRONICS INC43 citations92
US6427024B1Jul 30, 2002
Apparatus for and method of automatic optical inspection of electronic circuit boards, wafers and the like for defects, using skeletal reference inspection and separately programmable alignment tolerance and detection parameters
BELTRONICS INC30 citations92
US6014209AJan 11, 2000
Method of optically inspecting multi-layered electronic parts and the like with fluorescent scattering top layer discrimination and apparatus therefor
BELTRONICS INC51 citations92
US5524152AJun 4, 1996
Method of and apparatus for object or surface inspection employing multicolor reflection discrimination
BELTRONICS INC31 citations90
US5119434AJun 2, 1992
Method of and apparatus for geometric pattern inspection employing intelligent imaged-pattern shrinking, expanding and processing to identify predetermined features and tolerances
BELTRONICS INC25 citations90
US5046120ASep 3, 1991
Method of and apparatus for increasing the processing speed in the scanning inspection of circuit boards and other objects
BELTRONICS INC17 citations74
US4697088ASep 29, 1987
Method of and apparatus for discriminating sharp edge transitions produced during optical scanning of differently reflective regions
BELTRONICS INC7 citations74
US4484225ANov 20, 1984
Electronic focusing method and apparatus for television pick-up cameras and the like
BELTRONICS INC6 citations63
US4537505AAug 27, 1985
Method for detecting pin holes and the like in sheet material for packaging and similar applications
BELTRONICS INC2 citations53
US4649424AMar 10, 1987
Grounding system for CCD imaging apparatus and the like
BELTRONICS INC1 citations52