Invention Grant
- Patent Title: Semiconductor device, solid-state imaging device, method for manufacturing semiconductor device, method for manufacturing solid-state imaging device, and electronic apparatus
- Patent Title (中): 半导体器件,固态成像器件,半导体器件的制造方法,固态成像器件的制造方法以及电子器件
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Application No.: US14039836Application Date: 2013-09-27
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Publication No.: US09087757B2Publication Date: 2015-07-21
- Inventor: Yuki Miyanami
- Applicant: Sony Corporation
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Fishman Stewart Yamaguchi PLLC
- Priority: JP2010-164125 20100721
- Main IPC: H01L21/76
- IPC: H01L21/76 ; H01L27/146 ; H01L21/762

Abstract:
Disclosed herein is a semiconductor device including an element isolation region configured to be formed on a semiconductor substrate, wherein the element isolation region is formed of a multistep trench in which trenches having different diameters are stacked and diameter of an opening part of the lower trench is smaller than diameter of a bottom of the upper trench.
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