Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
MEMBRANE SUBSTRATE
Document Type and Number:
Japanese Patent JPH08125305
Kind Code:
A
Abstract:

PURPOSE: To prevent sealer from overflowing from a resist layer to an outside and to ensure reinforcement and insulation of a chip part by providing a second resist layer formed on a first resist layer with a cut-out hole which is larger than a cut-out hole of the first resist layer.

CONSTITUTION: A second resist layer 14 formed on a first resist layer 13 is provided with a cut-out hole 14a which is a size larger than a cut-out hole 13a of the first resist layer 13. According to this constitution, when conductive adhesive 16 connecting a terminal part of a chip part 15 and junction parts 12a, 12b of a wiring layer 12 is covered with sealer 17, the sealer 17 stands inside the cut-out hole 14a of the second resist layer 14 and does not overflow from the cut-out hole 14a of the second resist layer 14 even if the sealer 17 overflows from an inside of the cut-out hole 13a of the first resist layer 13 to an outside. Therefore, a terminal part of the chip part 15 and the conductive adhesive 16 are surely covered with the sealer 17 and reinforcement and insulation of a connection part thereof can be ensured.


Inventors:
KANAZAWA HIRONOBU
SHINOHARA YASUHIKO
NAITO SHINGO
Application Number:
JP28599794A
Publication Date:
May 17, 1996
Filing Date:
October 26, 1994
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MITSUMI ELECTRIC CO LTD
International Classes:
H05K3/28; H05K1/18; H05K3/32; H05K1/00; H05K3/34; (IPC1-7): H05K1/18; H05K3/28; H05K3/32