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:
Mar. 04, 2003
Filed:
Jan. 23, 2001
Gourab Majumdar, Tokyo, JP;
Mitsutaka Iwasaki, Tokyo, JP;
Shinji Hatae, Tokyo, JP;
Fumitaka Tametani, Tokyo, JP;
Toru Iwagami, Tokyo, JP;
Akihisa Yamamoto, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A power module is provided with an insulating substrate with a heat sink being bonded to one surface thereof and a circuit pattern being formed on the other surface. The circuit pattern is formed by an electrode layer. A switching semiconductor element and a free wheeling diode that is connected to a switching semiconductor element in anti-parallel therewith are placed on the circuit pattern. A controlling IC for controlling the switching semiconductor element is placed on the free wheeling diode. Thus, it is possible to make the entire power module compact, and it becomes possible to provide an inexpensive power module which can prevent the controlling IC from malfunctioning due to heat generated by the switching semiconductor element.