controlled avalanche transit-time triode

controlled avalanche transit-time triode

[kən¦trōld ′av·ə‚lanch ¦tranz·ət ‚tīm ′trī‚ōd] (electronics) A solid-state microwave device that uses a combination of IMPATT diode and npn bipolar transistor technologies; avalanche and drift zones are located between the base and collector regions. Abbreviated CATT.