Metal working – Barrier layer or semiconductor device making
Patent
1999-10-20
2000-09-12
Graybill, David E.
Metal working
Barrier layer or semiconductor device making
438 16, H01L 2100, H01L 2164, H01L 2166, G01R 3126
Patent
active
06117193&
ABSTRACT:
A method and apparatus for mounting an optical sensor to, and in optical alignment with, a lens or other imaging-forming element of an optical device includes attaching a fixture to the lens, the fixture having mounting features located thereon at predetermined positions measured relative to the focal plane of the lens, the optical axis of the lens, and the horizontal and vertical axes of a scene imaged by the lens. The absolute locations of the plane, the center, and the horizontal and vertical axes of the sensor array are found within and independently of the sensor package using automated optical pattern recognition apparatus. Using numerically controlled apparatus, complementary mounting features are then milled into the sensor package at positions measured relative to the absolute locations of the sensor features found by the pattern recognition equipment that correspond to the predetermined positions of the mounting features on the fixture measured relative to the optical features of the lens.
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Amkor Technology Inc.
Graybill David E.
Lawrence Don C.
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