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71. 发明专利

JP2001177053A SEMICONDUCTOR DEVICE 失效
公开(公告)号：JP2001177053A
公开(公告)日：2001-06-29
申请号：JP35676499
申请日：1999-12-16
申请人： TOSHIBA CORP
发明人： HIRAMOTO HIROYUKI , SEKIYA HIRONORI , SHIMIZU TOSHIO , KIJIMA KENJI
IPC分类号： H01L25/07 , H01L25/18
摘要： PROBLEM TO BE SOLVED: To provide a semiconductor device which has an elevated creep breakdown voltage of an insulation board to provide a high reliability. SOLUTION: A copper plate 2 is mounted on an aluminum nitride insulation board 1 and semiconductor elements 3 are mounted thereon and interconnected through leads 4. The insulation board 1 is mounted on a heat sink plate 5 and surrounded with a package 6, a terminal holder 8 with external terminal leads 7 is mounted, and silicone gel 9 is injected and hardened to seal it with seal members 10. Grooves 11 are formed in corresponding portions of the heat sink plate 5 to regions below the ends of the insulation board 1.

72. 发明专利

JP2001160342A SWITCHGEAR AND MANUFACTURING METHOD THEREFOR 失效
公开(公告)号：JP2001160342A
公开(公告)日：2001-06-12
申请号：JP34206699
申请日：1999-12-01
申请人： TOSHIBA CORP
发明人： ITO YOSHIHIRO , KINOSHITA SUSUMU , MAKISHIMA SATOSHI , SEKIYA HIRONORI , MIYAGAWA MASARU , SHIMIZU TOSHIO
IPC分类号： H02B13/02 , H01H11/00 , H01H31/00 , H01H33/02 , H01H33/66 , H02B1/56 , H02B13/01 , H02B13/035
摘要： PROBLEM TO BE SOLVED: To devise reducing size of the whole shape, reducing number of parts and casting man-hours by yielding insulation strength without using SF6 gas. SOLUTION: A switchgear 1 has been made by packaging a plurality of vacuum valves 7, 13 together with an input part 3 and a output part 21 wholly with a resin layer 23 and molded in a body.

73. 发明专利

JPH10243517A INSULATOR END TREATMENT MEMBER 失效
公开(公告)号：JPH10243517A
公开(公告)日：1998-09-11
申请号：JP4382097
申请日：1997-02-27
申请人： TOSHIBA CORP
发明人： KINOSHITA SUSUMU , OISHI MASAHIKO , HIRAMOTO HIROYUKI , SEKIYA HIRONORI
IPC分类号： H01B17/58 , H02G1/14
摘要： PROBLEM TO BE SOLVED: To prevent slipping and falling of an insulation end treatment member by providing a projection gnawing into the outer peripheral surface of a line- shaped member to an inner surface contacting the line-shaped member of a central hole of the insulation end treatment member consisting of a thermally shrinkable insulation material. SOLUTION: On the inner surface of a neck portion 1a of an insulation end treatment member 1 consisting of a thermally shrinkable insulation material, a projection 1b with a rectangular shaped cross section is formed in such a manner that the projection makes one turn around the outer peripheral surface of a tube 3 for insulation projection covering a cable 2 inserted through a center hole. Then, this projection 1b gnaws deeply into the tube 3, and a sufficient amount of gnawing is obtained to increase the anchoring effect. By doing this, the slipping and falling of the insulation end treatment member 1 can be prevented. Or the projection 1b may make one turn in a partially ruptured state relative to the center hole.

74. 发明专利

JPH09282959A INSULATING SPACER 失效
公开(公告)号：JPH09282959A
公开(公告)日：1997-10-31
申请号：JP8912496
申请日：1996-04-11
申请人： TOSHIBA CORP
发明人： SEKIYA HIRONORI , JINNO YOSHIKAZU , SHIMIZU TOSHIO , MIYAGAWA MASARU , OYAMADA MITSURU
IPC分类号： H01B17/56
摘要： PROBLEM TO BE SOLVED: To alleviate a stress developed in a step for relieving an electric field and prevent developing a crack it the like in an insulating material by forming a predetermined angle between an insulating spacer at the step for relieving the electric field formed in a metal insert and a center axis. SOLUTION: A step 4 for relieving an electric field is formed ion a metal insert 2. Furthermore, nearly U-shaped bell-mouse 5 for relieving an electric field is formed on a mold resin 3 on the circumference coaxial with the insert 2. An angle of the step 4 with respect to a center axis of an insulating spacer 1 is 25 deg.-35 deg.(e.g. 30 deg.). Consequently, it is possible to alleviate an internal stress developed in the mold resin in the vicinity of the step 4 as compared with the prior art, and to alleviate a tensile stress acting to peel a face in contact with the insert 2 due to an increase in component in a shearing direction, thereby preventing coourrence of a crack or peeling-off, Moreover, inclusion of an inorganic fuller at the end of an insulating material can enhance tenacity of the insulating material so as to prevent occurrence of a crack or peeling-off.

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