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. 29, 2008
Filed:
Jan. 06, 2005
Gordon MA, Phoenix, AZ (US);
Gordon Ma, Phoenix, AZ (US);
Infineon Technologies AG, , DE;
Abstract
An LDMOS semiconductor transistor structure comprises a substrate having an epitaxial layer of a first conductivity type, a source region extending from a surface of the epitaxial layer of a second conductivity type, a lightly doped drain region within the epitaxial layer of a second conductivity type, a channel located between the drain and source regions, and a gate arranged above the channel within an insulating layer, wherein the lightly doped drain region comprises an implant region of the first conductivity type extending from the surface of the epitaxial layer into the epitaxial layer covering an end portion of the lightly doped drain region next to the gate.