← Back to Patent Explorer
EP0436387A3 Expired / Lapsed EP ⏱️ 0.0 years remaining

Single chamber via etch through a dual-layer dielectric

Assignee: HP Inc
•
Filing: 1990-12-27
•
Granted: —
•
Expires: 2010-12-27
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Valerie A. Bach

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-01 20:09
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/53; C04B41/5338; C04B41/5346; C04B41/80; C04B41/91; H; H10; H10P; H10P50/00; H10P50/20; H10P50/28; H10P50/282; H10P50/283; H10W; H10W20/00; H10W20/01; H10W20/071; H10W20/081; H10W20/082; C04B2111/00; C04B2111/00474; C04B2111/00844

Claims Analysis

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

References Cited (Backward Citations)

FR2356739A1 Cited
EP0050972A2 Cited
US4484979A Cited
EP0263220A1 Cited
EP0326293A1 Cited

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