Patent
1983-07-15
1987-09-22
James, Andrew J.
357 17, 357 74, 357 30, H01L 3112
Patent
active
046958584
ABSTRACT:
A duplex optical communication module unit is disclosed, which comprises a ceramic substrate and first and second metal shells having respective transparent window members and hermetically bonded to the ceramic substrate so as to define a first and second space, respectively. A light-emitting element is assembled in the first space, and a light-emitting element and a circuit element for amplifying the photocurrent from the light-emitting element are assembled in the second space. Metallization layers are formed on the ceramic substrate over a substantial area thereof, light-receiving and light-transmitting sections being shielded by the metallization layers and metal shells.
Donuma Kenichi
Katagiri Shuhei
Sakura Shigeyuki
Takezawa Hatsuo
James Andrew J.
Prenty Mark
Tokyo Shibaura Denki Kabushiki Kaisha
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