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. 01, 2005
Filed:
May. 17, 2002
Mitsuho Tsuchida, Sapporo, JP;
Madoka Nishikawa, Oizumi-machi, JP;
Kenji Ikeda, Oizumi-machi, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
In a conventional power circuit device, such as a power MOSFET monolithic integrated circuit device and a compound device, since five lead pins are lead out from the packaging with even intervals, sufficient separation distances between the third pin of a high voltage and other adjacent pins cannot be secured. According to this invention, the distances between the third pin and other adjacent pins are expanded so as to become wider than the distances between other pins. Furthermore, the third pin is formed into an upper position, its adjacent pins are formed into a lower position, and other pins are formed into a middle position. Thereby, sufficient separation distances between the third pin of the high voltage and other adjacent pins can be secured. Therefore, a structure favorable in terms of safety can be provided. Furthermore, by providing a full-mold packaging, the header portion is not exposed to assure an easy handling.