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:
Jun. 09, 1998
Filed:
Feb. 27, 1996
Fwu-Juan Hshieh, Saratoga, CA (US);
True-Lon Lin, Cupertino, CA (US);
Danny Chi Nim, San Jose, CA (US);
Koon Chong So, Santa Clara, CA (US);
Yan Man Tsui, Union City, CA (US);
MageMOS Corporation, San Jose, CA (US);
Abstract
Improved power MOSFET structure, and fabrication process are disclosed in this invention to achieve cost savings by simplified device structure and fabrication processes, and also by reducing the required die size. Specifically, in a novel MOSFET device, insulation of mobile ions are achieved by extending the poly gate and metal contacts such that the passivation layer is no longer required and the fabrication process is simplified such that the MOSFET device can be manufactured at a lower price. Furthermore, in another MOSFET device, the gate runner is used to replace the field plate such that the requirement of a field plate as that in a conventional MOSFET device is also eliminated and, by reducing the die size, the cost of manufacture is further reduced.