Document Type and Number:
Japanese Patent JPS55137598
Kind Code:
U
Application Number:
JP4467580U
Publication Date:
September 30, 1980
Filing Date:
April 04, 1980
Export Citation:
International Classes:
H05K7/20; H01L23/427; H01L23/46; (IPC1-7): H05K7/20; H01L23/46