Circuit boards with embedded resistors

Details Circuit boards with embedded resistors Circuit boards with embedded resistors

2011-03-22

2011-03-22

Mai, Anh T (Department: 2832)

Electrical resistors

With base extending along resistance element

Terminal extends in or through base

C338S195000, C338S309000, C338S314000

Reexamination Certificate

active

07911318

ABSTRACT:
The present invention relates to an adjustable resistor embedded in a circuit board and a method of fabricating the same. The adjustable resistor comprises a resistor with a number of connection terminals, and a number of via holes extending to contact with the resistor. The resistive value of the resistor is variable depending on the size of the via holes, the number of the via holes, or the distance between the via holes.

REFERENCES:
patent: 3409856 (1968-11-01), Meoni
patent: 4443782 (1984-04-01), Poirier D'Ange D'Orsay
patent: 4792779 (1988-12-01), Pond et al.
patent: 4899126 (1990-02-01), Yamada
patent: 5831510 (1998-11-01), Zhang et al.
patent: 5852397 (1998-12-01), Chan et al.
patent: 7277005 (2007-10-01), Kang et al.
patent: 7334318 (2008-02-01), Hashimoto et al.
patent: 2006/0176145 (2006-08-01), Min et al.
Office Action issued Sep. 16, 2010 of corresponding Taiwanese Application No. 096115775.

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