Resistor having uniform resistance and semiconductor device...

Details Resistor having uniform resistance and semiconductor device... Resistor having uniform resistance and semiconductor device...

2005-12-20

2009-06-23

Enad, Elvin G (Department: 2832)

Electrical resistors

Plural separate diverse resistors

C338S007000, C338S009000

Reexamination Certificate

active

07551055

ABSTRACT:
A resistor having a uniform resistance, in which a serial resistance of resistors with different resistance temperature coefficients is not influenced by change in temperature, and a semiconductor device using the same includes: a first resistor having a first width and a first length and having a negative resistance temperature coefficient; and a second resistor serially connected to the first resistor, the second resistor having a positive resistance temperature coefficient, wherein the second resistor has a second width and a second length of different dimensions to satisfy a following Equationin-line-formulae description="In-line Formulae" end="lead"?x=−(Tp×Rp)/Ta×Ra,in-line-formulae description="In-line Formulae" end="tail"?where Tp and Ta are the respective resistance temperature coefficients of the first and the second resistors, and Rp and Ra are the respective sheet resistances of the first and the second resistors.

REFERENCES:
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patent: 6097276 (2000-08-01), Van Den Broek et al.
patent: 6960979 (2005-11-01), Banerjee
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Notice to Submit Response and English-language translation issued Aug. 30, 2006 in counterpart Korean application No. 10-2005-0006101.

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