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:
Apr. 10, 2018
Filed:
Nov. 18, 2016
Monolithic Power Systems Inc., San Jose, CA (US);
Ji-Hyoung Yoo, Los Gatos, CA (US);
Joel M. McGregor, Issaquah, WA (US);
Eric K. Braun, Mountain View, CA (US);
Monolithic Power Systems, Inc., San Jose, CA (US);
Abstract
A method for fabricating a semiconductor device including: forming a block layer above a well region of a first doping type in a semiconductor substrate, wherein the block layer has an opening for defining a first region in an upper part of the well region and has sidewalls at sides of the opening; implanting dopants of a second doping type into the well region through the opening of the block layer to form the first region; implanting dopants of the first doping type into the first region in the manner of large-angle-tilt dopants implantation to form a second region for a first transistor, and to form a third region for a second transistor; and forming, for both of the first transistor and the second transistor, a fourth region between the second region and the third region.