← Back to Patent Explorer
JPH0781284A Expired / Lapsed JP ⏱️ 0.0 years remaining

Information medium manufacturing method

Assignee: Casio Computer Co Ltd
•
Filing: 1993-09-14
•
Granted: —
•
Expires: 2013-09-14
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Translated from Japanese (57)【要約】 【目的】 基板のICチップ搭載面に絶縁性外装材を形 成する際、同時に、基板の反りを矯正する。 【構成】 厚さが0.1〜0.2mm程度と薄い円板状 の基板11の上面に搭載されたICチップ12の部分を 封止材13によって封止すると、当初平坦である基板1 1の外周部が上面側に反ってしまう。そこで、射出成形 機22の雌金型24内に基板11をICチップ搭載面を 上側にして配置し、次いで成形樹脂材料27を射出して 絶縁性外装材27aを形成すると、基板11に圧力が加 えられることにより、基板11の反りが矯正されること になる。 (57) [Abstract] [Purpose] When forming an insulating exterior material on the IC chip mounting surface of the substrate, at the same time, correct the warp of the substrate. [Structure] When a portion of an IC chip 12 mounted on the upper surface of a thin disk-shaped substrate 11 having a thickness of about 0.1 to 0.2 mm is sealed with a sealing material 13, the substrate 1 is initially flat. The outer peripheral part of 1 warps to the upper surface side. Therefore, when the substrate 11 is placed in the female mold 24 of the injection molding machine 22 with the IC chip mounting surface facing upward, and then the molding resin material 27 is injected to form the insulating exterior material 27a, pressure is applied to the substrate 11. The warp of the substrate 11 is corrected by the addition.

Inventors

  • 👤 Kinichi Naya
  • 👤 欣一 納谷
  • 👤 Koichi Saito
  • 👤 浩一 斉藤
  • 👤 Takafumi Ozawa
  • 👤 尚文 小沢

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-10-31 09:26
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/14; B29C45/14639; B29C45/14647

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