Patent ID: 8956983
Filing Date: 2015-02-17
Classification: C23C,H01L

Abstract:
1. A method of doping a patterned substrate in a reaction chamber, the method comprising: forming a first conformal film layer directly on a surface of the patterned substrate having three-dimensional features or on a material adhered to the surface, the first conformal film layer comprising a dopant source, the dopant source comprising a dopant, wherein forming the first film layer comprises: forming a second conformal film layer comprising the dopant source, after forming the first conformal film layer, wherein forming the second conformal film layer comprises: (a)-(c); forming a third conformal film layer comprising a dielectric material, after forming the second conformal film layer, wherein forming the third conformal film layer comprises: forming a fourth conformal film layer comprising a dielectric material, after forming the third conformal film layer, wherein forming the fourth conformal film layer comprises: (i)-(iii); forming a fifth conformal film layer comprising the dopant source, after forming the fourth conformal film layer, wherein forming the fifth conformal film layer comprises: (a)-(c); and forming a sixth conformal film layer comprising the dopant source, after forming the fifth conformal film layer, wherein forming the sixth conformal film layer comprises: (a)-(c); driving some of the dopant from the first, second, fifth, and sixth conformal film layers into the substrate to form a conformal doping profile in the substrate.