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.

Date of Patent:
Apr. 18, 2017

Filed:

May. 17, 2016
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventors:

Naoki Kosaka, Tokyo, JP;

Shohei Imai, Tokyo, JP;

Atsushi Okamura, Tokyo, JP;

Shinichi Miwa, Tokyo, JP;

Kenichiro Chomei, Tokyo, JP;

Yoshinobu Sasaki, Tokyo, JP;

Kenichi Horiguchi, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/495 (2006.01); H03F 3/16 (2006.01);
U.S. Cl.
CPC ...
H01L 23/4952 (2013.01); H01L 23/49562 (2013.01); H03F 3/16 (2013.01);
Abstract

An amplifier includes a package, a transistor chip having a gate pad and a drain pad formed elongately, the transistor chip being provided in the package, and a plurality of drain bonding wires connected to the drain pad, wherein the plurality of drain bonding wires include a first outer-most bonding wire connected to one of two end portions of the drain pad, a second outer-most bonding wire connected to the other of the two end portions of the drain pad, and an intermediate bonding wire interposed between the first outer-most bonding wire and the second outer-most bonding wire, each of the plurality of drain bonding wires is longer than 1 mm, and the first outer-most bonding wire and the second outer-most bonding wire have loop heights larger than a loop height that the intermediate bonding wire has.


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