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.:
Date of Patent:
May. 14, 2013
Filed:
Dec. 01, 2010
Applicants:
Tzuyin Chiu, Shanghai, CN;
Xiangming Xu, Shanghai, CN;
Miao Cai, Shanghai, CN;
Inventors:
Assignee:
Shanghai Hua Hong NEC Electronics Company, Limited, Shanghai, CN;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 5/00 (2006.01); H01F 27/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
A stacked inductor with different metal thickness and metal width. The stacked inductor comprises top and bottom metal traces which are aligned with each other. The thickness and width of the top and bottom metal traces are different. The top and bottom metal traces are connected at the end of metal trace with via holes. The inductance is increased with the use of the mutual inductance between top and bottom metal layers The parasitic resistor is reduced due to the difference of the top and bottom metal widths.