Patent ID: 6261929
Filing Date: 2001-07-17
Classification: H01L

Abstract:
A method of forming a semiconductor substrate, comprising the steps of:forming a plurality of selective growth regions at spaced locations on a first substrate, by forming a first selective growth region as a first plurality of trenches in the first substrate and forming a second selective growth region as a second plurality of trenches in the first substrate;forming a plurality of semiconductor layers at spaced locations on the first substrate by epitaxially growing a first continuous semiconductor layer from sidewalls of the first plurality of trenches and epitaxially growing a second continuous semiconductor layer from sidewalls of the second plurality of trenches; anddividing the first substrate into a plurality of second smaller substrates that contain only a respective one of the plurality of semiconductor layers, by partitioning the first substrate along a dicing trench that extends between the selective growth regions and is Wider than a width of each trench in the first plurality of trenches and a width of each trench in the second plurality of trenches.