Patent ID: 7229880
Filing Date: 2007-06-12
Classification: H01L

Abstract:
1. An isolation providing method comprising: (a) defining a first oxidation stop layer at a top surface portion of a first conductively-doped semiconductor layer; (b) using atomic layer deposition (ALD) to adhere a first intrinsic silicon layer onto the first oxidation stop layer, wherein said use of atomic layer deposition (ALD) defines a thickness of the first intrinsic silicon layer; (c) thermally oxidizing at least a sublayer portion of the first intrinsic silicon layer so as to thereby create a corresponding and thermally-grown, first intrinsic silicon oxide sublayer over the first semiconductor layer; and (d) disposing a second conductively-doped semiconductor layer above the first intrinsic silicon oxide sublayer so that the first intrinsic silicon oxide sublayer provides isolation between the first and second conductively-doped semiconductor layers.