Title:
SEMICONDUCTOR DEVICE
Document Type and Number:
Japanese Patent JP2014138080
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a semiconductor device in which a heat sink is capable of being pressed against and secured to a support substrate in a structure having a collar which is subject to an axial force generated by fastening of a bolt.SOLUTION: A semiconductor device comprises a collar 9. The collar includes a small diameter part 13, a large diameter part 14, and a diaphragm part 15. The large diameter part 14 is cylindrical in shape which is hollow and extends in a vertical direction and has a film thickness t and is formed to have a large diameter part external diameter φL and provided on a heat spreader 6 via an insulator 12. The small diameter part 13 is located above the large diameter part 14 and is cylindrical in shape which is hollow and extends in a vertical direction and is formed to have a small diameter part external diameter φS(φS<φL). the diaphragm part 15 connects an upper limit of the large diameter part 14 and a lower limit of the small diameter part 13 and has a film thickness t and extends in a horizontal direction and is formed to have an annular shape in planar view and function as a connection part between the small diameter part 13 and the large diameter part 14.
More Like This:
| JP2505308 | [Name of invention] Heat sink member mounting device |
| WO/2018/128052 | HEAT RADIATION DEVICE |
Inventors:
IMOTO YUJI
Application Number:
JP2013005945A
Publication Date:
July 28, 2014
Filing Date:
January 17, 2013
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H01L23/40; F16B5/02; F16B39/24; F16B43/00
Domestic Patent References:
| JP2007305643A | 2007-11-22 | |||
| JPH0722106U | 1995-04-21 | |||
| JPH11101218A | 1999-04-13 | |||
| JPH0178033U | 1989-05-25 | |||
| JP2006140317A | 2006-06-01 | |||
| JPH09129823A | 1997-05-16 | |||
| JP2004165406A | 2004-06-10 | |||
| JPS5693349A | 1981-07-28 | |||
| JP2010067924A | 2010-03-25 |
Attorney, Agent or Firm:
Yoshitake Hidetoshi
Takahiro Arita
Takahiro Arita
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