Semiconductor member and process for preparing semiconductor member
First Claim
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1. A process for preparing a semiconductor member comprising the steps of:
- forming a member having a non-porous monocrystalline semiconductor region on a porous semiconductor region, said porous semiconductor region maintaining the monocrystalline structure,bonding the surface of a member wherein the surface is constituted of an insulating substance onto the surface of said non-porous monocrystalline semiconductor region, and thenremoving said porous semiconductor region by etching.
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Abstract
A process for preparing a semiconductor member by forming a member having a non-porous monocrystalline semiconductor region on a porous monocrystalline semiconductor region, bonding the insulating surface of a member to the surface of the non-porous monocrystalline semiconductor region, and then removing the porous monocrystalline semiconductor region by etching.
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Citations
48 Claims
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1. A process for preparing a semiconductor member comprising the steps of:
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forming a member having a non-porous monocrystalline semiconductor region on a porous semiconductor region, said porous semiconductor region maintaining the monocrystalline structure, bonding the surface of a member wherein the surface is constituted of an insulating substance onto the surface of said non-porous monocrystalline semiconductor region, and then removing said porous semiconductor region by etching. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 33, 34, 47)
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2. A process for preparing a semiconductor member comprising the steps of:
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forming a member having a non-porous monocrystalline semiconductor region on a porous semiconductor region, said porous semiconductor region maintaining the monocrystalline structure, forming a region constituted of an insulating substance on the non-porous monocrystalline semiconductor side of said member, then bonding the surface of a member wherein the surface is constituted of an insulating substance onto the surface of the region constituted of said insulating substance, and removing said porous semiconductor region by etching.
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3. A process for preparing a semiconductor member comprising the steps of:
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making a non-porous monocrystalline semiconductor member porous to form a porous semiconductor region, said porous semiconductor region maintaining the monocrystalline structure, forming a non-porous monocrystalline semiconductor region on said porous semiconductor region maintaining the monocrystalline structure, bonding the surface of a member wherein the surface is constituted of an insulating substance onto the surface of said non-porous monocrystalline semiconductor region, and removing said porous semiconductor region by etching.
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4. A process of preparing a semiconductor member comprising the steps of:
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making a non-porous monocrystalline semiconductor member porous to form a porous semiconductor region, said porous semiconductor region maintaining the monocrystalline structure, forming a non-porous monocrystalline semiconductor region on said porous semiconductor region maintaining a monocrystalline structure, forming a region constituted of an insulating substance on said non-porous monocrystalline semiconductor region side, bonding the surface of a member wherein the surface is constituted of an insulating substance onto the surface of said region constituted of the insulating substance, and removing said porous semiconductor region by etching.
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5. A process for preparing a semiconductor member comprising the steps of:
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making a first non-porous monocrystalline semiconductor member partially porous to form a porous semiconductor region, said semiconductor region maintaining the monocrystalline structure and a second non-porous monocrystalline semiconductor region, forming a third non-porous monocrystalline semiconductor region on said porous semiconductor region maintaining the monocrystalline structure, bonding the surface of a member wherein the surface is constituted of an insulating substance onto the surface of said third non-porous monocrystalline semiconductor region, an removing said second non-porous monocrystalline semiconductor region by mechanical polishing and removing said porous semiconductor region by etching.
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6. A process for preparing a semiconductor member comprising the steps of:
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making a first non-porous monocrystalline semiconductor member partially porous to form a porous semiconductor region maintaining the monocrystalline structure and a second non-porous monocrystalline semiconductor region. forming a third non-porous monocrystalline semiconductor region on said porous semiconductor region, said porous semiconductor region maintaining the monocrystalline structure, forming a region constituted of an insulating substance on said third non-porous monocrystalline semiconductor region side, bonding the surface of a member wherein the surface is constituted of an insulating substance onto the surface of said third non-porous monocrystalline semiconductor region, and removing said second non-porous monocrystalline semiconductor region by mechanical polishing and removing said porous semiconductor region by etching.
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7. A process for preparing a semiconductor member comprising the steps of:
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forming a second monocrystalline semiconductor region of a second electroconduction type on a first monocrystalline semiconductor region of a first electroconduction type, making said first monocrystalline semiconductor region porous to form a porous semiconductor region, said porous semiconductor region maintaining the monocrystalline structure, bonding the surface of a member wherein the surface is formed of an insulating substance onto the surface of said second monocrystalline semiconductor region, and removing said porous semiconductor region by etching.
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8. A process for preparing a semiconductor member comprising the steps of:
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forming a second monocrystalline semiconductor region of a second electroconduction type on a first monocrystalline semiconductor region of a first electroconduction type, making said first monocrystalline semiconductor region porous to form a porous semiconductor region, said porous semiconductor region maintaining the monocrystalline structure, forming a region constituted of an insulating substance on said second monocrystalline semiconductor region side, bonding the surface of a member wherein the surface is formed of an insulating substance onto the surface of said region constituted of an insulating substance, and removing said porous semiconductor region by etching.
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25. A process for preparing a semiconductor member comprising the steps of:
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forming a member having a non-porous monocrystalline semiconductor region on a porous semiconductor region, said porous semiconductor region maintaining the monocrystalline structure, bonding the surface of another member onto the surface of said non-porous monocrystalline semiconductor region, and then removing said porous semiconductor region by etching. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 48)
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26. A process for preparing a semiconductor member comprising the steps of:
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forming a member having a non-porous monocrystalline semiconductor on a porous semiconductor, said porous semiconductor region maintaining the monocrystalline structure, forming a region constituted of an insulating substance on the non-porous monocrystalline semiconductor side of said member, then bonding the surface of another member onto the surface of the region constituted of said insulating substance, and removing said porous semiconductor region by etching.
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27. A process for preparing a semiconductor member comprising the steps of:
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making a non-porous monocrystalline semiconductor member porous to form a porous semiconductor region, said porous semiconductor region maintaining the monocrystalline structure, forming a non-porous monocrystalline semiconductor region on said porous semiconductor region maintaining the monocrystalline structure, bonding the surface of another member onto the surface of said non-porous monocrystalline semiconductor region, and removing said porous semiconductor region by etching
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28. A process for preparing a semiconductor member comprising the steps of:
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making a non-porous monocrystalline semiconductor member porous to form a porous semiconductor region, said porous semiconductor region maintaining the monocrystalline structure, forming a non-porous monocrystalline semiconductor region on said porous semiconductor region maintaining the monocrystalline structure, bonding the surface of another member onto the surface of said region constituted of an insulating substance, and removing said porous semiconductor region by etching.
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29. A process for preparing a semiconductor member comprising the steps of:
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making a first non-porous monocrystalline semiconductor member partially porous to form a porous semiconductor region, said porous semiconductor region maintaining the monocrystalline structure and a second non-porous monocrystalline semiconductor region, forming a third non-porous monocrystalline semiconductor region on said porous semiconductor region maintaining the monocrystalline structure, bonding the surface of another member onto the surface of said third non-porous monocrystalline semiconductor region, and removing said second non-porous monocrystalline semiconductor region by mechanical polishing, and removing said porous semiconductor region by etching.
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30. A process for preparing a semiconductor member comprising the steps of:
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making a first non-porous monocrystalline semiconductor member partially porous to form a porous semiconductor region, said porous semiconductor region maintaining the monocrystalline structure and a second non-porous monocrystalline semiconductor region, forming a third non-porous monocrystalline semiconductor region on said porous semiconductor region maintaining a monocrystalline structure, forming a region constituted of an insulating substance on said third non-porous monocrystalline semiconductor region side, bonding the surface of another member onto the surface of said region constituted on the insulating substance, and removing said second non-porous monocrystalline semiconductor region by mechanical polishing and removing said porous semiconductor region by etching.
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31. A process for preparing a semiconductor member comprising the steps of:
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forming a second monocrystalline semiconductor region of a second electroconduction type on a first monocrystalline semiconductor region of a first electroconduction type, making said first monocrystalline semiconductor region porous to form a porous semiconductor region, said porous semiconductor region maintaining the monocrystalline structure, bonding the surface of another member onto the surface of said second monocrystalline semiconductor region, and removing said porous semiconductor region by etching.
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32. A process for preparing a semiconductor member comprising the steps of:
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forming a second monocrystalline semiconductor region of a second electroconduction type on a first monocrystalline semiconductor region of a first electroconduction type, making said first monocrystalline semiconductor region porous to form a porous semiconductor region, said porous semiconductor region maintaining the monocrystalline structure, forming a region constituted of an insulating substance on said second monocrystalline semiconductor region side, bonding the surface of another member onto the surface of said region constituted of an insulating substance, and removing said porous semiconductor region by etching.
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Specification