Invention Grant
US08907419B2 LDMOS with enhanced safe operating area (SOA) and method therefor
有权
LDMOS具有增强的安全操作区(SOA)及其方法
- Patent Title: LDMOS with enhanced safe operating area (SOA) and method therefor
- Patent Title (中): LDMOS具有增强的安全操作区(SOA)及其方法
-
Application No.: US13614722Application Date: 2012-09-13
-
Publication No.: US08907419B2Publication Date: 2014-12-09
- Inventor: Tahir A. Khan , Vishnu K. Khemka , Ronghua Zhu
- Applicant: Tahir A. Khan , Vishnu K. Khemka , Ronghua Zhu
- Applicant Address: US TX Austin
- Assignee: Freescale Semiconductor, Inc.
- Current Assignee: Freescale Semiconductor, Inc.
- Current Assignee Address: US TX Austin
- Agent James L. Clingan, Jr.
- Main IPC: H01L29/66
- IPC: H01L29/66 ; H01L29/78 ; H01L29/10 ; H01L29/06

Abstract:
A laterally double diffused metal oxide semiconductor device includes a well region having a first conductivity, a first carrier redistribution region having the first conductivity type, wherein the second well region is under the well region, and a highly doped buried layer under the second well region. The highly doped buried layer has the first conductivity type and has a dopant concentration less than that of the well region and less than that of the first carrier redistribution region, and the buried layer is tied to the first well region. In addition, a method for forming the laterally double diffused metal oxide semiconductor device, which may use epitaxial growth, is disclosed.
Public/Granted literature
- US20130009243A1 LDMOS WITH ENHANCED SAFE OPERATING AREA (SOA) AND METHOD THEREFOR Public/Granted day:2013-01-10
Information query
IPC分类: