Patent ID: 8035106

Claim:
An electronic device, comprising: an insulation film formed on an insulating substrate; a non-crystallized semiconductor thin film formed on the insulation film; at least one predetermined transistor formation region in a crystallized region which is crystallized in a lateral direction in the non-crystallized semiconductor thin film; and a plurality of semiconductor devices which are formed in at least one of the at least one predetermined transistor formation region and the non-crystallized semiconductor thin film, wherein the plurality of semiconductor devices include at least one MOS thin film transistor, at least one lateral bipolar thin film transistor, and at least one MOS-bipolar hybrid thin film transistor, the at least one MOS-bipolar hybrid thin film transistor comprising a MOS thin film transistor construction and a lateral bipolar thin film transistor construction, the at least one MOS-bipolar hybrid thin film transistor has a source functioning as an emitter, a drain functioning as a collector, and a gate for forming a channel functioning as a base, the source and the drain are formed in the at least one predetermined transistor formation region or a region of the non-crystallized semiconductor thin film, the channel is formed in the at least one predetermined transistor formation region, and a current-amplification thin-film transistor circuit for amplifying a small current includes at least one of said at least one lateral bipolar thin film transistor and said at least one MOS-bipolar hybrid thin film transistor.