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Semiconductor device

a semiconductor and device technology, applied in the field of semiconductor devices, can solve the problems of affecting the character reducing the size of the semiconductor element, and displacing the semiconductor element under a pad and a bump,

Inactive Publication Date: 2008-06-19
SHINDO AKINORI +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The invention provides a semiconductor device with an element formation region and an isolation region, an electrode pad, an interlayer dielectric, an electrode pad, a passivation layer, and a bump. The bump has a specific shape and position in relation to the element formation region. The technical effect of the invention is to provide a semiconductor device with improved electrical performance and reliability."

Problems solved by technology

In related-art technology, when disposing a semiconductor element such as a MOS transistor under a pad, the characteristics of the semiconductor element may be impaired due to stress during bonding.
However, since the semiconductor chip has been reduced in size and increased in degree of integration, disposition of the semiconductor element under a pad and a bump has been in demand.

Method used

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first embodiment

1. First Embodiment

[0077]FIG. 1 is a cross-sectional view schematically showing a semiconductor device according to a first embodiment of the invention, and FIG. 2 is a plan view schematically showing the relationship between the shape of an electrode pad and a forbidden region in the semiconductor device according to the first embodiment. FIG. 1 shows the cross section along the line X-X shown in FIG. 2.

[0078]As shown in FIG. 1, the semiconductor device according to the first embodiment includes a semiconductor layer 10. As the semiconductor layer 10, a single crystal silicon substrate, a silicon on insulator (SOI) substrate in which a semiconductor layer is formed on an insulating layer, the semiconductor layer being a silicon layer, a germanium layer, or a silicon germanium layer, or the like may be used.

[0079]An isolation insulating layer 20 is formed in the semiconductor layer 10. The isolation insulating layer 20 may be formed by a shallow trench isolation (STI) method, a loca...

second embodiment

2. Second Embodiment

[0091]A second embodiment of the invention is described below with reference to FIG. 4. FIG. 4 is a cross-sectional view schematically showing a semiconductor device according to the second embodiment. The semiconductor device according to the second embodiment differs from the semiconductor device according to the first embodiment in that a semiconductor element is formed in the forbidden region 12. The following description merely illustrates the difference from the semiconductor device according to the first embodiment.

[0092]As shown in FIG. 4, the semiconductor device according to the second embodiment includes the element formation region 10A and the forbidden region 12 provided around the element formation region 10A. In the semiconductor device according to the second embodiment, the element formation region 10B is provided outside the forbidden region 12 in the same manner as in the semiconductor device according to the first embodiment, although not show...

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PUM

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Abstract

A semiconductor device including: a semiconductor layer including an element formation region including an element; a dielectric layer above the semiconductor; an electrode pad above the dielectric; a passivation layer above the pad and having an opening exposing part of the pad; and a bump in the opening and covering part of the element, the bump including first, second, third and fourth edges, the semiconductor having a forbidden region including: a first distance outward from a first line below the first edge, a second distance inward from the first line, a third distance outward from a second line below the second edge, a fourth distance inward from the second line, a fifth distance outward from a third line below the third edge, a sixth distance inward from the third line, a seventh distance outward from a fourth line below the fourth edge, and an eighth distance inward from the fourth line.

Description

[0001]This application is a divisional of U.S. patent application Ser. No. 11 / 478,485 filed on Jun. 29, 2006. This application claims the benefit of Japanese Patent Application No. 2005-197927, filed on Jul. 6, 2005, and Japanese Patent Application No. 2006-74732, filed on Mar. 17, 2006. The disclosures of the above applications are incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]The present invention relates to a semiconductor device.[0003]In related-art technology, when disposing a semiconductor element such as a MOS transistor under a pad, the characteristics of the semiconductor element may be impaired due to stress during bonding. Therefore, the pad formation region and the semiconductor element formation region are separately provided in a semiconductor chip when viewed from the top side. However, since the semiconductor chip has been reduced in size and increased in degree of integration, disposition of the semiconductor element under a pad and a bump has be...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H01L27/088
CPCH01L21/823475H01L21/823481H01L2924/13091H01L2924/01006H01L2924/01005H01L2924/00013H01L24/13H01L2924/19043H01L2924/01082H01L2924/01079H01L2924/01078H01L24/11H01L2224/0401H01L2224/05554H01L2224/1147H01L2224/13012H01L2224/13144H01L2224/13147H01L2224/13155H01L2924/01013H01L2924/01015H01L2924/01022H01L2924/01029H01L2924/01032H01L2924/01033H01L2924/01074H01L2924/00014H01L2224/13099H01L2924/00H01L24/05H01L2224/05124H01L2224/05147H01L2224/05166H01L2224/05624H01L2224/05644H01L2224/05647H01L2224/05666H01L2224/0615H01L2224/13013H01L2924/013H01L21/76H01L23/48
Inventor SHINDO, AKINORITAGAKI, MASATOSHIKURITA, HIDEAKI
Owner SHINDO AKINORI
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