← Back to Patent Explorer
JPS5378180A Expired / Lapsed JP ⏱️ 0.0 years remaining

Manufacture of semiconductor device

Assignee: Hitachi Ltd
•
Filing: 1976-12-22
•
Granted: —
•
Expires: 1996-12-22
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract PURPOSE: For the easing of the electric field at a junction boundary, the insulating film containing the impurity of a large diffusion coefficient in addition to the impurity of a small diffusion coefficient is used for covering and diffusing the junction boundary via the oxidized film between thin films, thereby improving the dielectric strength. COPYRIGHT: (C)1978,JPO&Japio

Inventors

  • 👤 Yoshiaki Kamigaki
  • 👤 Hiroo Masuda
  • 👤 Yuji Tanida

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-10-30 19:31
CPC Classifications
—

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag