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 7557423 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 07, 2009

Filed:

Sep. 05, 2007
Applicants:

Kai-ming Ching, Jhudong Township, Hsinchu County, TW;

Chen Chen-shien, Zhubei, TW;

Han-hsiang Huang, Donggang Township, Pingtung County, TW;

Chih-hua Chen, Taipei, TW;

Chen-cheng Kuo, Chu-Pei, TW;

Inventors:

Kai-Ming Ching, Jhudong Township, Hsinchu County, TW;

Chen Chen-Shien, Zhubei, TW;

Han-Hsiang Huang, Donggang Township, Pingtung County, TW;

Chih-Hua Chen, Taipei, TW;

Chen-Cheng Kuo, Chu-Pei, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/48 (2006.01);
U.S. Cl.
CPC ...
Abstract

A semiconductor structure includes an inductor; and a semiconductor substrate underlying the inductor, having a discontinuous material density across a plane underneath and in parallel with the inductor, thereby reducing eddy currents induced by an electrical current flowing through the inductor.


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