Method of manufacturing semiconductor article
First Claim
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1. A method of manufacturing a semiconductor article, characterized by comprising steps of:
- preparing a first substrate including a silicon substrate having a porous silicon layer and a nonporous semiconductor layer arranged on said porous silicon layer;
bonding said first substrate and a second substrate to produce a multilayer structure with said nonporous semiconductor layer located inside;
separating said multilayer structure along said porous silicon layer by causing an electric current to flow through said porous silicon layer for heating said multilayer structure, so that said nonporous semiconductor layer is arranged on said separated second substrate.
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Abstract
A method of manufacturing a semiconductor article comprises steps of preparing a first substrate including a silicon substrate having a porous silicon layer and a nonporous semiconductor layer arranged on the porous silicon layer, bonding the first substrate and a second substrate to produce a multilayer structure with the nonporous semiconductor layer located inside, separating the first and second substrates of the multilayer structure from each other along the porous silicon layer by heating the multilayer structure and removing the porous silicon layer remaining on the separated second substrate.
178 Citations
29 Claims
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1. A method of manufacturing a semiconductor article, characterized by comprising steps of:
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preparing a first substrate including a silicon substrate having a porous silicon layer and a nonporous semiconductor layer arranged on said porous silicon layer; bonding said first substrate and a second substrate to produce a multilayer structure with said nonporous semiconductor layer located inside; separating said multilayer structure along said porous silicon layer by causing an electric current to flow through said porous silicon layer for heating said multilayer structure, so that said nonporous semiconductor layer is arranged on said separated second substrate. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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2. A method of manufacturing a semiconductor article, characterized by comprising steps of:
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preparing a first substrate including a silicon substrate having a porous silicon layer and a nonporous semiconductor layer arranged on said porous silicon layer; bonding said first substrate and a second substrate to produce a multilayer structure with said nonporous semiconductor layer located inside; separating said multilayer structure along said porous silicaon layer by locally heating said porous silicon layer and its proximity, so that said nonporous semiconductor layer is arranged on said separated second substrate.
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3. A method of manufacturing a semiconductor article, characterized by comprising steps of:
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preparing a first substrate including a silicon substrate having a porous silicon layer and a nonporous semiconductor layer arranged on said porous silicon layer; bonding said first substrate and a second substrate to produce a multilayer structure with said nonporous semiconductor layer located inside; separating said multilayer structure along said porous silicon layer by laser irradiation for heating said multilayer structure, so that said nonporous semiconductor layer is arranged on said separated second substrate.
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27. A method of separating a semiconductor layer, comprising steps of:
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preparing a first substrate including a silicon substrate having a porous silicon layer and a nonporous semiconductor layer arranged on said porous silicon layer; bonding said first substrate and a second substrate to produce a multilayer structure with said nonporous semiconductor layer located inside; separating said nonporous semiconductor layer from said first substrate along said porous silicon layer by laser irradiation for heating said multilayer structure.
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28. A method of separating a semiconductor layer, comprising steps of:
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preparing a first substrate including a silicon substrate having a porous silicon layer and a nonporous semiconductor layer arranged on said porous silicon layer; bonding said first substrate and a second substrate to produce a multilayer structure with said nonporous semiconductor layer located inside; separating said nonporous semiconductor layer from said first substrate along said porous silicon layer by causing an electric current to flow through said porous silicon layer for heating said multilayer structure.
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29. A method of separating a semiconductor layer, comprising steps of:
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preparing a first substrate including a silicon substrate having a porous silicon layer and a nonporous semiconductor layer arranged on said porous silicon layer; bonding said first substrate and a second substrate to produce a multilayer located inside; separating said nonporous semiconductor layer from said first substrate along said porous silicon layer by locally heating said porous silicon layer and its proximity.
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Specification