Acoustic charge transport device and method

Michael J Hoskins (Inventor), Bill J Hunsinger (Inventor)

Research output: Patent


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.
Original languageEnglish (US)
U.S. patent number4633285
Filing date7/21/83
StatePublished - Dec 30 1986


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