Patent ID: 6982448

Claim:
A semiconductor device, comprising: a ferroelectric capacitor formed above a semiconductor body; and a hydrogen barrier formed along at least a portion of a side of the ferroelectric capacitor, the hydrogen barrier comprising: a nitrided aluminum oxide material formed along at least a portion of the side of the ferroelectric capacitor; and a silicon nitride layer formed over the nitrided aluminum oxide material, wherein the silicon nitride layer comprises: a first silicon nitride layer formed over at least a portion of the nitrided aluminum oxide material; and a second silicon nitride layer formed over at least a portion of the first silicon nitride layer, the second silicon nitride layer comprising a low silicon-hydrogen SiN material having an FTIR figure of merit value of about 0.05 or less, wherein the FTIR figure of merit is calculated as (Si—H absorbance)/(N—H absorbance×1.4).