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:
Nov. 04, 2014
Filed:
Nov. 16, 2012
Lei Shi, Songjiang, CN;
Yan Xun Xue, Los Gatos, CA (US);
Yuping Gong, Songjiang, CN;
Alpha & Omega Semiconductor, Inc., Sunnyvale, CA (US);
Abstract
Preparation methods of forming packaged semiconductor device, specifically for flip-chip vertical power device, are disclosed. In these methods, a vertical semiconductor chip is flip-chip attached to a lead frame and then encapsulated with plastic packing materials. Encapsulated chip is then thinned to a predetermined thickness. Contact terminals connecting the chip with external circuit are formed by etching at least a bottom portion of the lead frame connected.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile