Amorphous silicon varactors as rf amplitude modulators and their

Details Amorphous silicon varactors as rf amplitude modulators and their Amorphous silicon varactors as rf amplitude modulators and their

1987-10-28

1988-11-01

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

310317, 332 56, 361281, G01D 1516

Patent

active

047823500

ABSTRACT:
Amorphous silicon (aSi) voltage-controlled, variable capacitors (varactors) are utilized as rf amplitude modulators, such as for amplitude modulating the rf applied to an acoustic ink printhead. Large area fabrication processes are employed for vertically integrating these varactors with such printheads or other devices.

REFERENCES:
patent: 2990522 (1961-06-01), Riebman
patent: 3170126 (1965-02-01), Bento
patent: 3622914 (1971-11-01), Chung
patent: 4308547 (1981-12-01), Lovelady et al.
patent: 4697195 (1987-09-01), Quate

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