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:
May. 19, 2026
Filed:
May. 12, 2023
Chongqing Alpha and Omega Semiconductor Limited, Chongqing, CN;
CHONGQING ALPHA AND OMEGA SEMICONDUCTOR LIMITED, Chongqing, CN;
Abstract
A device integrating a trench type power device and a source capacitor and a manufacturing method of the device integrating the trench type power device and the source capacitor are provided, which relate to a technical field of manufacturing power semicondutor devices. The manufacturing method includes steps of preparing a cellular structure, preparing contact holes and tungsten bolts, accessing an electro-static discharge (ESD) diode and an integrated capacitor into the trench type power device, and depositing a passivation layer, etching a pad region, and performing wire bonding, which integrates the trench type power device and the source capacitor. Since no other masks are additionally added, a cost of the trench type power device and the manufacturing method thereof is controllable, and the device integrating the trench type power device and the source capacitor reduces use of external capacitors, thereby reducing an occupied area of a printed circuit board.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile