Invention Application
- Patent Title: Semiconductor device
- Patent Title (中): 半导体器件
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Application No.: US10928503Application Date: 2004-08-27
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Publication No.: US20050045989A1Publication Date: 2005-03-03
- Inventor: Tsukasa Fukui , Kaoru Ishida
- Applicant: Tsukasa Fukui , Kaoru Ishida
- Applicant Address: JP Kadoma-shi
- Assignee: Matsushita Electric Industrial Co., Ltd.
- Current Assignee: Matsushita Electric Industrial Co., Ltd.
- Current Assignee Address: JP Kadoma-shi
- Priority: JP2003-309197 20030901
- Main IPC: H01L21/822
- IPC: H01L21/822 ; H01L23/522 ; H01L27/04 ; H01L27/08 ; H01Q1/38 ; H01L21/8222 ; H01L29/00

Abstract:
A semiconductor device includes: a semiconductor substrate in which a semiconductor element is formed; a multilayer structured wiring layer that is provided on the semiconductor substrate, the wiring layer forming a structure connected with the semiconductor element; a spiral inductor that is formed in at least one layer of the wiring layer; and a connection terminal formed in an uppermost layer of the wiring layer for establishing connection from the wiring layer to an outside such as a printed board. A shielding wiring pattern is disposed between the spiral inductor and the connection terminal, the shielding wiring pattern functioning as an electromagnetic shield for the uppermost layer of the wiring layer. The shielding wiring pattern absorbs a change in electrical field caused by a potential change in the connection terminal, providing a shielding structure which suppresses the superposing of noise and an unnecessary signal onto the spiral inductor from the connection terminal.
Public/Granted literature
- US07053461B2 Semiconductor device Public/Granted day:2006-05-30
Information query
IPC分类: