Active solid-state devices (e.g. – transistors – solid-state diode – Responsive to non-electrical signal – Electromagnetic or particle radiation
Reexamination Certificate
2005-12-20
2005-12-20
Thomas, Tom (Department: 2815)
Active solid-state devices (e.g., transistors, solid-state diode
Responsive to non-electrical signal
Electromagnetic or particle radiation
C257S432000, C257S433000, C257S686000, C257S692000, C257S698000
Reexamination Certificate
active
06977423
ABSTRACT:
This invention relates to a light-receiving module in which transmission impedance of lead terminals are matched by simple method. The module has a semiconductor light-receiving device, such as a photo diode, a plurality of lead terminals for transmitting an electrical signal converted by the semiconductor device, and a metal base with a plurality of through holes, the lead terminals passes therethrough. The diameter of the lead terminal for signal transmission is smaller as compared with that of other lead terminal and the diameter of the through holes is adjusted and filled by a sealant glass with a dielectric constant so as to match the impedance thereof.
REFERENCES:
patent: 5814871 (1998-09-01), Furukawa et al.
patent: 5841565 (1998-11-01), Kanai
patent: 6034424 (2000-03-01), Fujimura et al.
patent: 6670600 (2003-12-01), Terano et al.
Ito Makoto
Kohmoto Kenichiro
Sekiguchi Takeshi
Tanaka Motoyoshi
Nguyen Joseph
Sumitomo Electric Industries Ltd.
Thomas Tom
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