Patent ID: 6573529
Filing Date: 2003-06-03
Classification: H01L

Abstract:
A semiconductor switching device comprising:a first field effect transistor and a second field effect transistor each comprising a source electrode, a gate electrode and a drain electrode which are formed on a channel layer of the respective transistor, the first transistor having a larger gate width than the second transistor so that the first transistor has a higher saturation current than the second transistor; a common input terminal connected to the source electrode or the drain electrode of the first transistor and connected to the source electrode or the drain electrode of the second transistor; a first output terminal connected to the source electrode or the drain electrode of the first transistor which is not connected to the common input terminal; and a second output terminal connected to the source electrode or the drain electrode of the second transistor which is not connected to the common input terminal, wherein the gates of the first transistor and the second transistor receive control signals so that one of the transistors opens as a switching element and the other of the transistors closes as another switching element.