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:
Sep. 24, 2013
Filed:
Dec. 30, 2011
Yanfeng Jiang, Beijing, CN;
Yanfeng Jiang, Beijing, CN;
North China University of Technology, Beijing, CN;
Abstract
A monolithically-integrated dual surge protective device and its fabrication method are disclosed. The exemplary dual surge protective device includes a LDMOS device and a diode assembly which is consisted of multiple diodes series-wound on back-to-back basis and whose one end is connected to drain electrode of the LDMOS device and the other end is connected to gate electrode of the LDMOS device. The diode assembly can be fabricated directly in the gate electrode area of the LDMOS device after fabrication of the LDMOS device is completed. The protective device is equivalent to combination of diodes and LDMOS in respect to operating principles and structures, with the advantage of enhanced effect of surge prevention and cost reduction of surge device as it can be integrated into a chip.