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:
Dec. 14, 2021
Filed:
Aug. 31, 2020
Cystech Electronics Corp., New Taipei, TW;
CYSTECH ELECTRONICS CORP., Newtaipei, TW;
Abstract
A composite power element and a method for manufacturing the same are provided. The power element includes a substrate structure, an insulation layer, a dielectric layer, a metal-oxide-semiconductor field-effect transistor (MOSFET), and a zener diode. The MOSFET is formed in a transistor formation region of the substrate structure. The zener diode is formed in a circuit element formation region of the substrate structure, and includes a zener diode doped structure formed on the insulation layer and covered by the dielectric layer. The zener diode doped structure includes a P-type doped region and an N-type doped region. The zener diode includes a zener diode metal structure formed on the dielectric layer and partially passes through the dielectric layer to be electrically connected to the P-type doped region and the N-type doped region. The zener diode is configured to receive a reverse bias voltage when the power element is energized.