Electrical resistors – Mechanically variable – Resistance value varied by removing or adding material
Reexamination Certificate
2011-08-16
2011-08-16
Lee, Kyung (Department: 2833)
Electrical resistors
Mechanically variable
Resistance value varied by removing or adding material
C338S283000, C338S287000
Reexamination Certificate
active
07999652
ABSTRACT:
In a flat plate type thick film resistor, an insulation performance is improved by excluding the nonuniformity of potential distribution on a wiring plane, which is generated when electric current flows in a resistance wire. Simultaneously, generation of noise depending on potential distribution and variation of stray capacitance around a resistor is suppressed. When the resistance wire having a constant thickness and uniform resistivity, which is formed on an insulating substrate, is connected to a pair electrode conductors that face to each other, in the way that the resistance wire is repetitively bent to the alternate side in zigzags, a potential gradient on the wiring plane, which is generated when electric current flows in the resistance wire, is constant by properly selecting the line width, the bending angle, and the spacing between bending vertexes of a resistance wire.
REFERENCES:
patent: 4306217 (1981-12-01), Solow
patent: 4342217 (1982-08-01), Paetow
patent: 4908599 (1990-03-01), Breen et al.
patent: 6292091 (2001-09-01), Kambara et al.
patent: 6836207 (2004-12-01), Nothhelfer et al.
patent: 7057491 (2006-06-01), Dempsey
patent: 06-037252 (1994-02-01), None
patent: 09-097707 (1997-04-01), None
patent: 11-150011 (1999-06-01), None
patent: 2002-008902 (2002-01-01), None
patent: 2007-142240 (2007-06-01), None
Harada Ken
Matsui Isao
Sakamaki Minoru
Hitachi , Ltd.
Hitachi High-Technologies Corporation
Lee Kyung
Miles & Stockbridge P.C.
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