JPH0325961A - Semiconductor device - Google Patents

Semiconductor device

Info

Publication number
JPH0325961A
JPH0325961A JP15955589A JP15955589A JPH0325961A JP H0325961 A JPH0325961 A JP H0325961A JP 15955589 A JP15955589 A JP 15955589A JP 15955589 A JP15955589 A JP 15955589A JP H0325961 A JPH0325961 A JP H0325961A
Authority
JP
Japan
Prior art keywords
resin
filtering agent
gel
moisture contents
leads
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15955589A
Inventor
Masahiko Ito
Masakiyo Izumitani
Shiro Kobayashi
Emiko Minowa
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP15955589A priority Critical patent/JPH0325961A/en
Publication of JPH0325961A publication Critical patent/JPH0325961A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE: To improve the moisture vapor resistance reliability of the title device by a method wherein a gel filtering agent whose volume expands when it absorbs moisture contents is injected between a resin and leads so as to improve its adhesion to the resin and to prevent permeation of moisture contents thereafter.
CONSTITUTION: A gel filtering agent 5 injected between a resin 2 and leads 6 absorbs moisture contents from the outside and expands in volume, so that the adhesion to the resin increases to prevent the peameance of moisture contents thereafter. The used gel filtering agent is a bead-form gel having a three-dimensional network structure obtained by crosslinking sephadex dextran by use of epichlorohydrine. As there are a plurality of hydrophilic radicals inside its structure, it has strong hydrophilic properties and easily swells with water. As an application embodiment, a dam for injecting the gel filtering agent 5 is arranged between the leads 6 and the resin 2a and the lead frame is formed into a recessed form for injecting the gel filtering agent.
COPYRIGHT: (C)1991,JPO&Japio
JP15955589A 1989-06-23 1989-06-23 Semiconductor device Pending JPH0325961A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15955589A JPH0325961A (en) 1989-06-23 1989-06-23 Semiconductor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15955589A JPH0325961A (en) 1989-06-23 1989-06-23 Semiconductor device

Publications (1)

Publication Number Publication Date
JPH0325961A true JPH0325961A (en) 1991-02-04

Family

ID=15696298

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15955589A Pending JPH0325961A (en) 1989-06-23 1989-06-23 Semiconductor device

Country Status (1)

Country Link
JP (1) JPH0325961A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5316491A (en) * 1991-07-19 1994-05-31 Kabushiki Kaisha Toshiba Electronic apparatus, card-type electronic component used with the electronic apparatus, and electronic system with expanding apparatus for expanding function of electronic apparatus
US5404271A (en) * 1991-07-30 1995-04-04 Kabushiki Kaisha Toshiba Electronic apparatus having a card storing section formed within a body between a support frame and an upper case of the body and having functional elements mounted between the support frame and a lower case of the body
US5504648A (en) * 1991-09-06 1996-04-02 Kabushiki Kaisha Toshiba Electronic apparatus and electronic system with expanding apparatus having interlock, ejector, grounding, and lock mechanisms, for expanding function of electronic apparatus
US5544007A (en) * 1991-07-19 1996-08-06 Kabushiiki Kaisha Toshiba Card-shaped electronic device used with an electronic apparatus and having shield plate with conductive portion on a lateral side

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5316491A (en) * 1991-07-19 1994-05-31 Kabushiki Kaisha Toshiba Electronic apparatus, card-type electronic component used with the electronic apparatus, and electronic system with expanding apparatus for expanding function of electronic apparatus
US5393241A (en) * 1991-07-19 1995-02-28 Kabushiki Kaisha Toshiba Electronic apparatus, card-type electronic component used with the electronic apparatus, and electronic system with expanding apparatus for expanding function of electronic apparatus
US5499129A (en) * 1991-07-19 1996-03-12 Kabushiki Kaisha Toshiba Electronic apparatus having a rib integral with the display housing for protecting the fluorescent lamp
US5544007A (en) * 1991-07-19 1996-08-06 Kabushiiki Kaisha Toshiba Card-shaped electronic device used with an electronic apparatus and having shield plate with conductive portion on a lateral side
US5404271A (en) * 1991-07-30 1995-04-04 Kabushiki Kaisha Toshiba Electronic apparatus having a card storing section formed within a body between a support frame and an upper case of the body and having functional elements mounted between the support frame and a lower case of the body
US5497296A (en) * 1991-07-30 1996-03-05 Kabushiki Kaisha Toshiba Electronic apparatus with hinged display and latch mechanism for releasably latching display in closed position
US5526227A (en) * 1991-07-30 1996-06-11 Kabushiki Kaisha Toshiba Computer having electric conductive portion contacting with electric conductive portion of card, and card receiver device having electric conductive portion contacting with electric conductive portion of card
US5504648A (en) * 1991-09-06 1996-04-02 Kabushiki Kaisha Toshiba Electronic apparatus and electronic system with expanding apparatus having interlock, ejector, grounding, and lock mechanisms, for expanding function of electronic apparatus

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