Patent ID: 7816716

Claim:
A semiconductor device comprising: an insulating substrate; an active element formed in an active element layer disposed above this insulating substrate; a ferroelectric capacitive element formed in a ferroelectric capacitive element layer disposed above the active element layer; and a silicon hydronitride layer formed between the active element layer and the ferroelectric capacitive element layer, wherein the active element includes a thin film transistor having a polysilicon thin film having source/drain regions and a channel region, a gate electrode formed above the channel region, and a gate insulating film formed between the polysilicon thin film and the gate electrode, the active element layer has an interlayer dielectric film which covers the polysilicon thin film and includes the gate electrode embedded, the ferroelectric capacitive element is formed by laminating a lower electrode, a ferroelectric layer, and an upper electrode, a hydrogen concentration of the active element layer is higher than a hydrogen concentration of the ferroelectric capacitive element, and wherein the semiconductor device further comprises a protective oxide film between at least one of the source region, the drain region, the interlayer dielectric film, and the channel region, and the insulating substrate, wherein the channel region comprises a plurality of Si—H bonds.