Modification of circuit features that are interior to a...

Details Modification of circuit features that are interior to a... Modification of circuit features that are interior to a...

2005-02-15

2005-02-15

Niebling, John F. (Department: 2812)

Metal working

Method of mechanical manufacture

Electrical device making

C378S196000

Reexamination Certificate

active

06854179

ABSTRACT:
A circuit feature that is interior to a packaged integrated circuit is modified by first identifying a trimming point on the interior circuit feature using an x-ray inspection system. Coordinates of the trimming point are then related to the coordinates of a visible reference marker. The relationship between the visible reference marker and the trimming point is then used to position a cutting tool over the trimming point. Finally, the cutting tool is used to make one or more cuts into the packaged integrated circuit, until the interior circuit feature has been acceptably modified at the trimming point.

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patent: 6165658 (2000-12-01), Taff et al.
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