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    • 2. 发明授权
    • Process for transferring a layer of strained semiconductor material
    • 用于转移应变半导体材料层的工艺
    • US07803694B2
    • 2010-09-28
    • US12170583
    • 2008-07-10
    • Bruno GhyselenDaniel BensahelThomas Skotnicki
    • Bruno GhyselenDaniel BensahelThomas Skotnicki
    • H01L21/30H01L21/46
    • H01L29/1054H01L21/76254H01L21/76259Y10S438/938
    • Semiconductor wafers having a thin layer of strained semiconductor material. These structures include a substrate; an oxide layer upon the substrate; a silicon carbide (SiC) layer upon the oxide layer, and a strained layer of a semiconductor material in a strained state upon the silicon carbide layer, or a matching layer upon the donor substrate that is made from a material that induces strain in subsequent epitaxially grown layers thereon; a strained layer of a semiconductor material of defined thickness in a strained state; and an insulating or semi-insulating layer upon the strained layer in a thickness that retains the strained state of the strained layer. The insulating or semi-insulating layers are made of silicon carbide or oxides and act to retain strain in the strained layer.
    • 半导体晶片具有应变半导体材料的薄层。 这些结构包括底物; 基底上的氧化物层; 氧化物层上的碳化硅(SiC)层,以及在碳化硅层上处于应变状态的半导体材料的应变层,或者由施主衬底上的由随后的外延生长引起应变的材料制成的匹配层 生长层; 在应变状态下具有规定厚度的半导体材料的应变层; 以及在应变层上的绝缘或半绝缘层,其厚度保持应变层的应变状态。 绝缘层或半绝缘层由碳化硅或氧化物制成并用于将应变保留在应变层中。
    • 7. 发明授权
    • Process for transferring a layer of strained semiconductor material
    • 用于转移应变半导体材料层的工艺
    • US08049224B2
    • 2011-11-01
    • US12862471
    • 2010-08-24
    • Bruno GhyselenDaniel BensahelThomas Skotnicki
    • Bruno GhyselenDaniel BensahelThomas Skotnicki
    • H01L29/12
    • H01L29/1054H01L21/76254H01L21/76259Y10S438/938
    • Semiconductor wafers having a thin layer of strained semiconductor material. These structures include a substrate; an oxide layer upon the substrate; a silicon carbide (SiC) layer upon the oxide layer, and a strained layer of a semiconductor material in a strained state upon the silicon carbide layer, or a matching layer upon the donor substrate that is made from a material that induces strain in subsequent epitaxially grown layers thereon; a strained layer of a semiconductor material of defined thickness in a strained state; and an insulating or semi-insulating layer upon the strained layer in a thickness that retains the strained state of the strained layer. The insulating or semi-insulating layers are made of silicon carbide or oxides and act to retain strain in the strained layer.
    • 半导体晶片具有应变半导体材料的薄层。 这些结构包括底物; 基底上的氧化物层; 氧化物层上的碳化硅(SiC)层,以及在碳化硅层上处于应变状态的半导体材料的应变层,或者由施主衬底上的由随后的外延生长引起应变的材料制成的匹配层 生长层; 在应变状态下具有规定厚度的半导体材料的应变层; 以及在应变层上的绝缘或半绝缘层,其厚度保持应变层的应变状态。 绝缘层或半绝缘层由碳化硅或氧化物制成并用于将应变保留在应变层中。
    • 8. 发明申请
    • PROCESS FOR TRANSFERRING A LAYER OF STRAINED SEMICONDUCTOR MATERIAL
    • 用于传输应变半导体材料层的方法
    • US20080164492A1
    • 2008-07-10
    • US12040134
    • 2008-02-29
    • Bruno GhyselenDaniel BensahelThomas Skotnicki
    • Bruno GhyselenDaniel BensahelThomas Skotnicki
    • H01L29/04H01L21/18
    • H01L29/1054H01L21/76254H01L21/76259Y10S438/938
    • A process for preparing a semiconductor wafer with a strained layer having an elevated critical thickness. A first wafer having a strained layer of a semiconductor material on a matching layer is provided, with the semiconductor material having a first lattice parameter corresponding to a relaxed state and a first critical thickness corresponding to the first strained state, and the first thickness is less than the first critical thickness, The matching layer has a matching lattice parameter that is sufficiently different than the first lattice parameter to retain the strained layer in the strained state, The strained layer is transferred to a receiving substrate selected to provide the transferred strained layer with a second critical thickness that is greater than the first critical thickness, and additional semiconductor material is grown on the transferred strained layer to provide a second thickness that is greater than the first critical thickness and less than the second critical thickness, The invention also relates to the semiconductor structures that can be produced by the process.
    • 一种制备具有临界厚度升高的应变层的半导体晶片的方法。 提供了在匹配层上具有半导体材料应变层的第一晶片,半导体材料具有对应于松弛状态的第一晶格参数和对应于第一应变状态的第一临界厚度,并且第一厚度较小 匹配层具有与第一晶格参数充分不同的匹配晶格参数,以将应变层保持在应变状态。应变层被转移到选择的接收衬底以提供转移的应变层, 第二临界厚度大于第一临界厚度,并且附加的半导体材料在转移的应变层上生长以提供大于第一临界厚度并小于第二临界厚度的第二厚度。本发明还涉及 可以通过该方法生产的半导体结构 。