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    • 52. 发明专利
    • Semiconductor device and manufacturing method therefor
    • 半导体器件及其制造方法
    • JP2008192989A
    • 2008-08-21
    • JP2007028345
    • 2007-02-07
    • Fujitsu Ltd富士通株式会社
    • FUKUDA MASAHIROSHIMAMUNE YOSUKE
    • H01L29/78H01L21/8234H01L21/8238H01L27/088H01L27/092
    • H01L21/823814H01L21/02381H01L21/02447H01L21/0245H01L21/02502H01L21/02529H01L21/02532H01L21/02573H01L21/0262H01L21/823807H01L29/165H01L29/66636H01L29/7848Y10S438/933Y10S438/938
    • PROBLEM TO BE SOLVED: To provide a semiconductor device, along with its manufacturing method, comprising an MOS transistor structure capable of efficiently applying stresses to a channel.
      SOLUTION: The manufacturing method of the semiconductor device includes a process (a) where a gate insulating film 3 and a gate electrode 4 are formed on an Si surface of a semiconductor substrate; a process (b) where an insulating side wall spacer SW is formed on an insulating gate electrode sidewall; a process (c) where a recess 11 is formed in an Si region on both sides of the insulating sidewall spacer SW; a process (d) where a first SiGe layer 12a of critical film thickness or less is epitaxially grown on the semiconductor substrate surface that has been recessed; a process (e) where a second SiGe layer 12b of critical film thickness or less whose Ge composition is lower than the first SiGe layer 12a is epitaxial-grown on the first SiGe layer 12a; and a process (f) where a third SiGe layer 12a of critical film thickness or less whose Ge composition is higher than the second SiGe layer 12b is epitaxially grown on the second SiGe layer 12b.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种半导体器件及其制造方法,其包括能够有效地向沟道施加应力的MOS晶体管结构。 解决方案:半导体器件的制造方法包括其中在半导体衬底的Si表面上形成栅极绝缘膜3和栅极电极4的工艺(a) 绝缘侧壁隔离物SW形成在绝缘栅电极侧壁上的工序(b) 在绝缘侧壁间隔物SW的两侧的Si区域形成有凹部11的工序(c) 其中在凹陷的半导体衬底表面上外延生长临界膜厚度或更小的第一SiGe层12a的工艺(d) 其中Ge组分低于第一SiGe层12a的临界膜厚度或更小的第二SiGe层12b在第一SiGe层12a上外延生长的工艺(e); 和其中Ge组分高于第二SiGe层12b的临界膜厚度或更小的第三SiGe层12a在第二SiGe层12b上外延生长的工艺(f)。 版权所有(C)2008,JPO&INPIT
    • 53. 发明专利
    • Semiconductor device and its manufacturing method
    • 半导体器件及其制造方法
    • JP2008103607A
    • 2008-05-01
    • JP2006286203
    • 2006-10-20
    • Matsushita Electric Ind Co Ltd松下電器産業株式会社
    • TAMURA NOBUMASASUZUKI TAKESHIOTANI KAZUHIRO
    • H01L29/78H01L21/8238H01L27/092
    • H01L21/823807H01L29/7843Y10S438/938
    • PROBLEM TO BE SOLVED: To provide a semiconductor device in which a stress insulating film is formed on a gate electrode, preventing the reduction of a driving capability of an MIS transistor. SOLUTION: The semiconductor device has a first MIS transistor formed in a first active region 100b on a semiconductor substrate 100. The first MIS transistor comprises: a first gate insulating film 103b formed on the first active region 100b; a first gate electrode 104b formed on the first gate insulating film 103b; a first stress insulating film 111b which is formed on an upper face in the first gate electrode 104b and on a side face in a gate length direction for applying first stress to a channel of the first MIS transistor in the gate length direction; and a first underlaying insulating film 112 formed on a side face in a gate width direction in the first gate electrode 104b. The first stress insulating film 111b is not formed on the side face in the gate width direction of the first gate electrode 104b. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了提供在栅电极上形成应力绝缘膜的半导体器件,防止了MIS晶体管的驱动能力的降低。 解决方案:半导体器件具有形成在半导体衬底100上的第一有源区100b中的第一MIS晶体管。第一MIS晶体管包括:形成在第一有源区100b上的第一栅极绝缘膜103b; 形成在第一栅极绝缘膜103b上的第一栅电极104b; 第一应力绝缘膜111b,其形成在第一栅电极104b的上表面和栅极长度方向的侧面上,用于向栅极长度方向的第一MIS晶体管的沟道施加第一应力; 以及形成在第一栅电极104b中的栅极宽度方向的侧面上的第一底层绝缘膜112。 第一应力绝缘膜111b不形成在第一栅电极104b的栅宽度方向的侧面上。 版权所有(C)2008,JPO&INPIT
    • 55. 发明专利
    • Memory element and its manufacturing method
    • 记忆元素及其制造方法
    • JP2006191004A
    • 2006-07-20
    • JP2005352408
    • 2005-12-06
    • Dongbuanam Semiconductor Incドンブアナム セミコンダクター インコーポレイテッド
    • KIM HEUNG JIN
    • H01L21/8247H01L27/115H01L29/788H01L29/792
    • H01L29/78H01L21/823807H01L21/823878H01L21/84H01L27/1203H01L29/0847H01L29/1054H01L29/66575Y10S438/938
    • PROBLEM TO BE SOLVED: To provide a split gate flash EEPROM by composing a control gate and a floating gate in a vertical position, and by downsizing a cell to realize a high coupling ratio and to decrease a programming voltage with its demagnetizing property improved with a part of the control and floating gate overlapped, and to provide its manufacturing method. SOLUTION: The split gate flash EEPROM comprises a semiconductor substrate having a trench, a tunneling oxide film formed on the both-side walls of the trench; the floating gate, a dielectric film, and the control gate independently and sequentially formed on the both-side walls on the trench on the tunneling oxide film; a buffer dielectric film formed on the floating gate, the dielectric film, and on the control gate side wall; a source junction formed on the trench bottom semiconductor substrate, a source electrode electrically connected to the source junction and formed in the trench between the buffer dielectric films; and a drain junction formed on the surface of the semiconductor substrate except the trench. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:通过在垂直位置构成控制栅极和浮动栅极来提供分离栅极快速EEPROM,并且通过使单元小型化以实现高耦合比并且以其退磁特性降低编程电压 改进了一部分控制和浮动门重叠,并提供其制造方法。 解决方案:分离栅极快速EEPROM包括具有沟槽的半导体衬底,形成在沟槽的两侧壁上的隧道氧化膜; 独立且顺序地形成在隧道氧化膜上的沟槽上的两侧壁上的浮栅,电介质膜和控制栅; 形成在浮动栅极,电介质膜和控制栅极侧壁上的缓冲电介质膜; 源极结,其形成在沟槽底部半导体衬底上,源极电连接到源极结并形成在沟槽中的缓冲介电膜之间; 以及形成在除了沟槽之外的半导体衬底的表面上的漏极结。 版权所有(C)2006,JPO&NCIPI