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JPS5258489A Expired / Lapsed JP ⏱️ 0.0 years remaining

Production of semiconductor memory element

Assignee: Hitachi Ltd
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Filing: 1975-11-10
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Granted: —
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Expires: 1995-11-10
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Abstract

Abstract PURPOSE:To perform avalanche injection of desired charges into trapping region by forming the charge trapping region through doping of a desired impurity into a gate insulation film by an ion implantation method, and applying a reverse bias voltage between one or both of source and drain regions and the substrate.

Inventors

  • 👤 Seiichi Iwamatsu

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-10-30 19:04
CPC Classifications
—

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