Acoustic charge transport device and method

Details Acoustic charge transport device and method Acoustic charge transport device and method

H - Electricity

03

H

356/200, 333/34

H03H 9/42 (2006.01) H01L 31/04 (2006.01) H03H 11/26 (2006.01)

Patent

CA 1206541

ABSTRACT OF THE DISCLOSURE The disclosure is directed to a method and a device for delaying an electrical signal, the method and device being useable in various signal processing applications. A buried channel is formed by disposing a portion of a layer of piezoelectric semiconductor material between confining layers. A surface acoustic wave is established in the piezoelectric semiconductor material. Majority carriers are depleted from the channel, and an electrical signal is injected into the channel. A delayed version of the electrical signal, which had been carried along by the surface acoustic wave, can then be extracted from the channel.

434052

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