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    • 6. 发明授权
    • Ultra thin channel MOSFET
    • 超薄通道MOSFET
    • US07211490B2
    • 2007-05-01
    • US11083743
    • 2005-03-18
    • Bruce B. DorisThomas S. KanarskyYing ZhangHuilong ZhuMeikei IeongOmer Dokumaci
    • Bruce B. DorisThomas S. KanarskyYing ZhangHuilong ZhuMeikei IeongOmer Dokumaci
    • H01L21/336H01L29/76
    • H01L29/66772H01L21/84H01L27/1203H01L29/6656H01L29/78612H01L29/78621
    • Described is a method for making thin channel silicon-on-insulator structures. The inventive method comprises forming a set of thin spacer abutting a gate region in a first device and a second device region; forming a raised source/drain region on either side of the gate region in the first device region and the second device region, implanting dopants of a first conductivity type into the raised source drain region in the first device region to form a first dopant impurity region, where the second device region is protected by a second device region block mask; implanting dopants of a second conductivity type into the raised source/drain region in the second device region to form a second dopant impurity region, where the first device region is protected by a first device region block mask; and activating the first dopant impurity region and the second dopant impurity region to provide a thin channel MOSFET.
    • 描述了制造薄沟道硅绝缘体上结构的方法。 本发明的方法包括在第一装置和第二装置区域中形成邻接栅极区的一组薄间隔件; 在第一器件区域和第二器件区域中的栅极区域的任一侧上形成凸起的源极/漏极区域,将第一导电类型的掺杂剂注入到第一器件区域中的凸起的源极漏极区域中以形成第一掺杂剂杂质区域 ,其中所述第二设备区域被第二设备区域块掩码保护; 将第二导电类型的掺杂剂注入所述第二器件区域中的所述升高的源极/漏极区域中以形成第二掺杂剂杂质区域,其中所述第一器件区域被第一器件区域阻挡掩模保护; 以及激活第一掺杂杂质区和第二掺杂杂质区,以提供薄沟道MOSFET。
    • 7. 发明授权
    • High-performance CMOS SOI devices on hybrid crystal-oriented substrates
    • 高性能CMOS SOI器件在混合晶体取向衬底上
    • US07713807B2
    • 2010-05-11
    • US11958877
    • 2007-12-18
    • Bruce B. DorisKathryn W. GuariniMeikei IeongShreesh NarasimhaKern RimJeffrey W. SleightMin Yang
    • Bruce B. DorisKathryn W. GuariniMeikei IeongShreesh NarasimhaKern RimJeffrey W. SleightMin Yang
    • H01L21/8238
    • H01L21/76275H01L21/823807H01L21/84
    • An integrated semiconductor structure containing at least one device formed upon a first crystallographic surface that is optimal for that device, while another device is formed upon a second different crystallographic surface that is optimal for the other device is provided. The method of forming the integrated structure includes providing a bonded substrate including at least a first semiconductor layer of a first crystallographic orientation and a second semiconductor layer of a second different crystallographic orientation. A portion of the bonded substrate is protected to define a first device area, while another portion of the bonded substrate is unprotected. The unprotected portion of the bonded substrate is then etched to expose a surface of the second semiconductor layer and a semiconductor material is regrown on the exposed surface. Following planarization, a first semiconductor device is formed in the first device region and a second semiconductor device is formed on the regrown material.
    • 提供包含至少一个器件的集成半导体结构,所述器件形成在对于该器件最佳的第一晶体表面上,而另一器件形成在对于另一器件最佳的第二不同晶体表面上。 形成集成结构的方法包括提供包括至少第一晶体取向的第一半导体层和第二不同晶体取向的第二半导体层的键合衬底。 键合衬底的一部分被保护以限定第一器件区域,而键合衬底的另一部分是未受保护的。 然后蚀刻键合衬底的未保护部分以暴露第二半导体层的表面,并将半导体材料重新生长在暴露表面上。 在平坦化之后,在第一器件区域中形成第一半导体器件,并且在再生长材料上形成第二半导体器件。
    • 8. 发明授权
    • Highly manufacturable SRAM cells in substrates with hybrid crystal orientation
    • 具有混合晶体取向的基板中的高度可制造的SRAM单元
    • US07605447B2
    • 2009-10-20
    • US11162780
    • 2005-09-22
    • Bruce B. DorisGregory CostriniOleg GluschenkovMeikei IeongNakgeuon Seong
    • Bruce B. DorisGregory CostriniOleg GluschenkovMeikei IeongNakgeuon Seong
    • H01L29/06H01L29/04H01L27/11
    • H01L27/1104H01L27/11Y10S257/903Y10S438/973
    • The present invention relates to a semiconductor device structure that includes at least one SRAM cell formed in a substrate. Such SRAM cell comprises two pull-up transistors, two pull-down transistors, and two pass-gate transistors. The pull-down transistors and the pass-gate transistors are substantially similar in channel widths and have substantially similar source-drain doping concentrations, while the SRAM cell has a beta ratio of at least 1.5. The substrate preferably comprises a hybrid substrate with at two isolated sets of regions, while carrier mobility in these two sets of regions differentiates by a factor of at least about 1.5. More preferably, the pull-down transistors of the SRAM cell are formed in one set of regions, and the pass-gate transistors are formed in the other set of regions, so that current flow in the pull-down transistors is larger than that in the pass-gate transistors.
    • 本发明涉及一种半导体器件结构,其包括在衬底中形成的至少一个SRAM单元。 这样的SRAM单元包括两个上拉晶体管,两个下拉晶体管和两个通过栅极晶体管。 下拉晶体管和栅极晶体管在沟道宽度上基本相似,并且具有基本相似的源极 - 漏极掺杂浓度,而SRAM单元的β比率至少为1.5。 衬底优选地包括具有两个分离的区域集合的混合衬底,而这两组区域中的载流子迁移率以至少约1.5的因子差分。 更优选地,SRAM单元的下拉晶体管形成在一组区域中,并且栅极晶体管形成在另一组区域中,使得下拉晶体管中的电流大于 传输栅晶体管。
    • 9. 发明授权
    • Method for metal gated ultra short MOSFET devices
    • 金属门极超短MOSFET器件的方法
    • US07494861B2
    • 2009-02-24
    • US12013704
    • 2008-01-14
    • Jack Oon ChuBruce B. DorisMeikei IeongJing Wang
    • Jack Oon ChuBruce B. DorisMeikei IeongJing Wang
    • H01L21/8238
    • H01L29/7838H01L21/28017H01L29/105
    • MOSFET devices suitable for operation at gate lengths less than about 40 nm, and methods of their fabrication is being presented. The MOSFET devices include a ground plane formed of a monocrystalline Si based material. A Si based body layer is epitaxially disposed over the ground plane. The body layer is doped with impurities of opposite type than the ground plane. The gate has a metal with a mid-gap workfunction directly contacting a gate insulator layer. The gate is patterned to a length of less than about 40 nm, and possibly less than 20 nm. The source and the drain of the MOSFET are doped with the same type of dopant as the body layer. In CMOS embodiments of the invention the metal in the gate of the NMOS and the PMOS devices may be the same metal.
    • 适用于栅极长度小于约40nm的MOSFET器件及其制造方法。 MOSFET器件包括由单晶Si基材料形成的接地平面。 Si基体层外延地设置在接地平面上。 体层掺杂了与地平面相反的杂质。 栅极具有中间功能函数的金属,其直接接触栅极绝缘体层。 栅极被图案化成小于约40nm,并且可能小于20nm的长度。 MOSFET的源极和漏极掺杂有与体层相同类型的掺杂剂。 在本发明的CMOS实施例中,NMOS和PMOS器件的栅极中的金属可以是相同的金属。