The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7205880 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 17, 2007

Filed:

Nov. 23, 2004
Applicant:

Naoki Fukunaga, Kyoto, JP;

Inventor:

Naoki Fukunaga, Kyoto, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01C 10/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A trimmer resistance component of the present invention has a trimmer resistor constructed of a p-type diffusion layer formed on the surface of an n-type epitaxial layer. A first electrode is connected to a portion located on one end side of this trimmer resistor, while a first connection portion, a second connection portion and a third connection portion of the second electrode are connected to portions located on the other end side. By cutting a portion of the first connection portion and a portion of the second connection portion by laser trimming, a resistance value between the first electrode and the second electrode can be trimmed without changing a parasitic capacitance between the trimmer resistor and the n-type epitaxial layer.


Find Patent Forward Citations

Fukunaga, Naoki. (2007). Trimmer impedance component, semiconductor device and trimming method (U.S. Patent No. 7205880). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7205880

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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