Title:
HEAT SINK BASE, HEAT SINK, AND METHOD OF MANUFACTURING HEAT SINK
Document Type and Number:
WIPO Patent Application WO/2000/063967
Kind Code:
A1
Abstract:
A heat sink base, a heat sink which can be manufactured easily at low cost and can efficiently dissipate heat generated from a semiconductor, and a method of manufacturing the heat sink. A heat sink (10) inegrally has a recessed and protruded surface corresponding to the shape of a semiconductor device on the side of a heat sink base (11) where the semiconductor device is mounted. The heat sink is manufactured by forming a recessed part (26) in the surface of a base plate (24) to be a template, forming a heat sink base material layer (27) on the surface of the base plate (24), removing the base plate (24) from the heat sink base material layer (27) to form a heat sink base (11) having a protruded part (23) to the surface of which the recessed part (26) is transferred, forming metalized layers (15 and 16), in multilayer, comprising a metal film (17), a protective layer (18) and an electrode layer (19) on the side surface having at least the protruded part (23) on the heat sink base (11) where the semiconductor device is mounted, and forming adhesive layers (13 and 14) for adhering a semiconductor device (12) in multilayer on the recessed part (23) of the heat sink base (11).
Inventors:
EHARA KEIGO (JP)
TANGA MICHIFUMI (JP)
OKADA MITSUHARU (JP)
UCHIYAMA YOSHIO (JP)
OKAYAMA HIRONAO (JP)
TANGA MICHIFUMI (JP)
OKADA MITSUHARU (JP)
UCHIYAMA YOSHIO (JP)
OKAYAMA HIRONAO (JP)
Application Number:
PCT/JP2000/002600
Publication Date:
October 26, 2000
Filing Date:
April 20, 2000
Export Citation:
Assignee:
TOYO KOHAN CO LTD (JP)
EHARA KEIGO (JP)
TANGA MICHIFUMI (JP)
OKADA MITSUHARU (JP)
UCHIYAMA YOSHIO (JP)
OKAYAMA HIRONAO (JP)
EHARA KEIGO (JP)
TANGA MICHIFUMI (JP)
OKADA MITSUHARU (JP)
UCHIYAMA YOSHIO (JP)
OKAYAMA HIRONAO (JP)
International Classes:
H01L21/48; H01S5/02; H01S5/024; (IPC1-7): H01L23/36
Foreign References:
| JPS5079286A | 1975-06-27 | |||
| JPS5414181A | 1979-02-02 | |||
| JPS62271483A | 1987-11-25 | |||
| JPS55153389A | 1980-11-29 | |||
| JPH02194551A | 1990-08-01 | |||
| JPH03270087A | 1991-12-02 | |||
| JPH0738208A | 1995-02-07 | |||
| JPH11135892A | 1999-05-21 |
Attorney, Agent or Firm:
Ohta, Akio (Yoyogi 2-chome Shibuya-ku Tokyo, JP)
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