Method for constructing a layer structure on a substrate
AssigneeRWE Schott Solar, Inc.
InventorsIngo Schwirtlich, Wilfried Schmidt, Hilmar von Campe
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Abstract
The invention relates to a method for constructing a layer structure on an especially fragile flat substrate. In order for thin, fragile flat substrates to be able to be subjected to refinement or construction of semiconductor components, a process is proposed with the steps: Applying an inorganic ceramic phase to the fragile substrate and subsequent heat treatment for hardening and sintering the inorganic ceramic material.
Claims31
Method for reinforcing against breakage a fragile flat semiconductor substrate of a solar cell having a front surface facing incident solar radiation, a back surface opposite to the front surface and an edge region, comprising the steps of:
- applying an inorganic ceramic material to the back surface, leaving at least one space free of ceramic material for contacting the solar cell;
- and
- subsequently heat treating the substrate with the inorganic ceramic material to sinter and harden the inorganic ceramic material;
- wherein the inorganic ceramic material is applied to the substrate in such a thickness that after heat treatment the inorganic ceramic material forms a layer on the back surface of thickness d where:
- 10 μm≦d≦500 μm.
Dependencies are inferred from the claim text.