Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – With housing or contact structure
Reexamination Certificate
2007-02-12
2008-12-30
Prenty, Mark (Department: 2822)
Active solid-state devices (e.g., transistors, solid-state diode
Incoherent light emitter structure
With housing or contact structure
C257S664000
Reexamination Certificate
active
07470937
ABSTRACT:
An optical module comprises: a stem; a protruding portion on a surface of the stem; an optical semiconductor device mounted on the protruding portion; a power supply terminal penetrating through the stem, the power supply terminal being insulated from the stem; a first dielectric substrate mounted on the protruding portion; a first signal line on the first dielectric substrate and connected to a first end of the power supply terminal; a second dielectric substrate on a rear surface of the stem; and a second signal line on the second dielectric substrate and connected to a second end of the power supply terminal. The second signal line has an electrical length of 23.0-36.2 mm and an impedance of 21.5-24.5Ω.
REFERENCES:
patent: 6778567 (2004-08-01), Sunaga
patent: 7196389 (2007-03-01), Yasui
patent: 1655630 (2006-10-01), None
patent: 2003-037329 (2003-02-01), None
patent: 2003-332667 (2003-11-01), None
patent: 2006-128545 (2004-11-01), None
patent: 2005-259762 (2005-09-01), None
Leydig , Voit & Mayer, Ltd.
Mitsubishi Electric Corporation
Prenty Mark
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