← Back to Patent Explorer
JPH0212931A Expired / Lapsed JP ⏱️ 0.0 years remaining

Manufacture of circuit device

Assignee: Taiyo Yuden Co Ltd
•
Filing: 1988-06-30
•
Granted: —
•
Expires: 2008-06-30
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract PURPOSE:To manufacture a circuit device in which a resin coating layer can be formed in a region limited without damaging wirings by coating a semiconductor chip and the wirings with a photoset resin, setting the limited region containing the chip and the wirings by radiating it with light, and then removing the uncured part. CONSTITUTION:An epoxy ultraviolet-ray curable resin 9 so coats from a dispenser as to cover a semiconductor chip 2 and wirings 4. Then, with a mask 10 used the covering region of the chip 2 and the wirings 4 of the resin 9 is irradiated with ultraviolet rays 13 to be cured. Thereafter, the uncured part of the resin 9 is dissolved and removed with xylene, then heat treated at 120 deg.C for 60min thereby to obtain a resin coating layer 9a made of cured resin.

Inventors

  • 👤 Noboru Oki
  • 👤 大木 昇

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-11-03 21:13
CPC Classifications
H; H10; H10W; H10W72/00; H10W72/851; H10W72/874; H10W72/884; H10W74/00; H10W74/10; H10W90/00; H10W90/701; H10W90/731; H10W90/734; H10W90/751; H10W90/754

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