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US 8,076,215 B2Granted
Method of forming an electronic device using a separation technique
AssigneeAstroWatt, Inc.
InventorsLeo Mathew, Dharmesh Jawarani
Life of this patent
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Abstract
A method of forming an electronic device can include forming a patterned layer adjacent to a side of a substrate including a semiconductor material. The method can also include separating a semiconductor layer and the patterned layer from the substrate, wherein the semiconductor layer is a portion of the substrate.
Claims16
A method comprising:
- forming a first junction in a semiconductor substrate;
- forming a region of hydrogen in the semiconductor substrate;
- forming a dielectric layer over a first side of a semiconductor substrate;
- patterning the dielectric layer to form a patterned dielectric layer defines an opening;
- forming a first metallic layer over the patterned dielectric layer and within the opening;
- annealing the first metallic layer to form a silicide layer;
- forming a second metallic layer over the silicide layer, wherein the second metallic layer is formed using an electrochemical process;
- moving the hydrogen from the second metallic layer into the semiconductor substrate, wherein moving the hydrogen from the second metallic layer into the semiconductor substrate is used to weaken regions of the semiconductor substrate to aid in separating the semiconductor layer from the semiconductor substrate;
- and
- separating a combination of the first metallic layer, the second metallic layer, and a semiconductor layer by a process of anneal and strain induced by the second metallic layer.
7 more elements
Dependencies are inferred from the claim text.