Electrical resistors – Mechanically variable – Resistance value varied by removing or adding material
Reexamination Certificate
2007-09-18
2007-09-18
Lee, Richard K. (Department: 2832)
Electrical resistors
Mechanically variable
Resistance value varied by removing or adding material
C338S197000, C338S211000, C029S610100, C219S121600
Reexamination Certificate
active
10691881
ABSTRACT:
A resistor and a structure for changing an electrical resistance of a resistor. Initially, the resistor is provided, wherein the resistor has a length L and an electrical resistance R1. A portion of the resistor is exposed to a laser radiation, wherein the portion includes a fraction F of the length L of the resistor. After the resistor has been exposed to the laser radiation, the resistor has an electrical resistance R2, wherein R2is unequal to R1.
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Ballantine Arne W.
Cabral, Jr. Cyril
Edelstein Daniel C.
Stamper Anthony K.
International Business Machines - Corporation
Lee Richard K.
Schmeiser Olsen & Watts
Steinberg William H.
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