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JPS5658249A Expired / Lapsed JP ⏱️ 0.0 years remaining

Package for integrated circuit

Assignee: Hitachi Ltd
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Filing: 1979-10-19
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Granted: —
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Expires: 1999-10-19
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Abstract

Abstract PURPOSE:To shield alpha rays generated from the inner wall of a package by filling a hollow generated therein with a resin such as plastics when an IC chip is housed in the package made of a ceramic. CONSTITUTION:The IC chip 5 is housed in a recess of the ceramic package 1 which is provided with a plurality of external connection lead wires 3 facing downward. A specified connection is made with a bonding wire 4 and the open end of the top thereof is covered with a metal cap 2. Thus, the IC package is constructed. The hollow herein produced in the package 1 is filled with a resin 6 such as plastics. This enables complete shieling of alpha rays as emitted from the ceramic inner wall thereby improving the heat dissipating effect with a less heat resistance.

Inventors

  • 👤 Takeo Uchiyama

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-10-23 16:31
CPC Classifications
H; H10; H10W; H10W42/00; H10W42/20; H10W42/25; H10W70/00; H10W70/60; H10W70/67; H10W70/68; H10W70/682; H10W72/00; H10W72/071; H10W72/075; H10W72/07551; H10W72/50; H10W90/00; H10W90/701; H10W90/751; H10W90/754

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