Patent ID: 9502585
Filing Date: 2016-11-22
CPC Classification: H01L

Claim Text:
1. A method of manufacturing a Schottky barrier diode, the method comprising: providing a semiconductor substrate comprising a first well region of a first conductivity type in the semiconductor substrate; forming a surface-doped layer having a dopant of a second conductivity type opposite to the first conductivity type in the first well region; forming a dielectric layer in contact with the surface-doped layer after forming the surface-doped layer; performing a thermal treatment on the surface-doped layer to remove the dopant from the surface-doped layer and to move the dopant into the dielectric layer; removing the dielectric layer having the dopant to expose the first well region; and forming a silicide layer in contact with the exposed first well region; forming a silicon nitride-containing layer over the surface-doped layer after forming the surface-doped layer and before forming the dielectric layer; and removing the silicon nitride-containing layer.