Patent ID: 6333525
Filing Date: 2001-12-25
Classification: H01L

Abstract:
A charge transfer apparatus in whicha charge transfer channel,charge transfer electrodes formed on said charge transfer channel,an output electrode positioned adjacent to the final charge transfer electrode of said charge transfer electrodes on one end of said charge transfer channel,a diffusion region, adjacent to said output electrode, for accumulating a signal charge transferred through said charge transfer channel,and a reset electrode, adjacent to said diffusion region, for discharging the charge accumulated in said diffusion region to a side different from the side of said output electrode are formed,wherein a gate insulation film of said charge transfer electrode comprises a multilayered film of a first silicon oxide film, a silicon nitride film, and a second silicon oxide film,and at least one of the gate insulation film films of said output electrode and said reset electrode is formed of a third silicon oxide film.