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    • 5. 发明授权
    • Low temperature plasma oxidation process
    • 低温等离子体氧化工艺
    • US5412246A
    • 1995-05-02
    • US186568
    • 1994-01-26
    • David M. DobuzinskyDavid L. HarmonSrinandan R. KasiDonald M. KenneySon V. NguyenTue NguyenPai-Hung Pan
    • David M. DobuzinskyDavid L. HarmonSrinandan R. KasiDonald M. KenneySon V. NguyenTue NguyenPai-Hung Pan
    • C23C8/36H01L21/31H01L21/316H01L21/321H01L21/8242H01L27/108H01L29/12
    • H01L21/32105H01L21/02238H01L21/02252H01L21/31662Y10S148/118Y10S257/90
    • A process for forming a thin film on a surface of a semiconductor device. The process involves formation of a silicon dioxide film by plasma enhanced thermal oxidation, employing a mixture of ozone and oxygen which are generated separately from the reactor chamber in a volume ratio of about 1-10/1, preferably about 5-7/1, at a temperature generally below 440.degree. C., preferably about 350.degree.-400.degree. C. The process is used to form sidewall oxide spacers on polysilicon gates for field effect transistors. A relatively fast oxidation rate is achieved at a temperature significantly below that employed in conventional oxidation processes, and this serves to reduce dopant diffusion from the polysilicon. In addition, the resulting film demonstrates low stress with good conformal step coverage of the polysilicon gates. Another use of the process is to grow thin gate oxides and oxide-nitride-oxide with a thickness of less than 100 .ANG.. An oxide film of uniform thickness is formed by controlling the temperature, RF power, exposure time and oxygen/ozone ratio for thin gate oxide (
    • 一种在半导体器件的表面上形成薄膜的工艺。 该方法包括通过等离子体增强的热氧化形成二氧化硅膜,采用臭氧和氧的混合物,其以反应器室分开产生,体积比约为1-10 / 1,优选约5-7 / 1, 在一般低于440℃,优选约350-400℃的温度下进行。该方法用于在场效应晶体管的多晶硅栅上形成侧壁氧化物间隔物。 在显着低于常规氧化工艺中使用的温度下实现相对较快的氧化速率,这用于减少掺杂剂从多晶硅的扩散。 此外,所得膜表现出低应力,并具有多晶硅栅极的良好的共形台阶覆盖。 该方法的另一个用途是生长厚度小于100安培的薄栅氧化物和氧化物 - 氮化物 - 氧化物。 通过控制ULSI FET制造中薄栅氧化物(<100 ANGSTROM)应用的温度,RF功率,曝光时间和氧/臭氧比,形成均匀厚度的氧化膜。
    • 8. 发明申请
    • MICRO-ELECTRO-MECHANICAL-SYSTEM TEMPERATURE SENSOR
    • 微电子机械系统温度传感器
    • US20120076172A1
    • 2012-03-29
    • US12892406
    • 2010-09-28
    • Jason P. GillDavid L. HarmonTimothy D. Sullivan
    • Jason P. GillDavid L. HarmonTimothy D. Sullivan
    • G01K5/52
    • G01K5/52
    • The present invention provides a micro-electro-mechanical-system (MEMS) temperature sensor that employs a suspended spiral comprising a material with a positive coefficient of thermal expansion. The thermal expansion of the suspended spiral is guided to by a set of guideposts to provide a linear movement of the free end of the suspended spiral, which is converted to an electrical signal by a set of conductive rotor azimuthal fins that are interdigitated with a set of conductive stator azimuthal fins by measuring the amount of capacitive coupling therebetween. Real time temperature may thus be measured through the in-situ measurement of the capacitive coupling. Optionally, the MEMS temperature sensor may have a ratchet and a pawl to enable ex-situ measurement.
    • 本发明提供了一种微电子机械系统(MEMS)温度传感器,其采用悬浮螺旋,其包括具有正的热膨胀系数的材料。 悬挂螺旋的热膨胀由一组导轨引导以提供悬挂螺旋的自由端的线性运动,其被一组导电转子方位角翅片转换成电信号,所述导电转子方位角翅片与组相互指向 通过测量导电定子方位翅片之间的电容耦合量。 因此可以通过电容耦合的原位测量来测量实时温度。 可选地,MEMS温度传感器可以具有棘轮和棘爪以使得能够进行非原位测量。
    • 9. 发明授权
    • Reactive ion etching buffer mask
    • 反应离子蚀刻缓冲掩模
    • US5118384A
    • 1992-06-02
    • US807960
    • 1991-12-10
    • David L. HarmonMichael L. KerbaughNancy T. PascoeJohn F. Rembetski
    • David L. HarmonMichael L. KerbaughNancy T. PascoeJohn F. Rembetski
    • H01L21/3065H01L21/308
    • H01L21/3065H01L21/3085
    • An improved mask and method of forming a deep and uniform width trench in a substrate and the resulting structure is disclosed. A substrate material such as silicon has deposited thereon a first layer of sacrificial material as a first component of an etch mask, the sacrificial material being a material such as polysilicon that is either etched by or absorbs the same ions which reactively ion etch the substrate. A second layer of material, which resists reactive ion etching, such as silicon dioxide, is deposited over the first layer of material as a second component of the etch mask. The silicon dioxide is patterned in the form of the trench to be formed in the substrate. The layer polysilicon material is then reactive ion etched and the reactive ion etching continued to form a trench in the silicon substrate. The polysilicon acts as a sacrificial material being etched by any ions that are reflected from the silicon dioxide or are directed at an angle such that they strike the layer of polysilicon material. Thus, only those ions which are directed essentially normal to the underlying substrate perform the trench etching. This allows the trench to have essentially straight side walls and to be of essentially uniform width.
    • 公开了一种在衬底中形成深而均匀的宽度沟槽的改进的掩模和方法,并且所得到的结构被公开。 诸如硅的衬底材料在其上沉积有第一层牺牲材料作为蚀刻掩模的第一组分,牺牲材料是诸如多晶硅的材料,其被蚀刻或吸收相同的离子,其反应离子蚀刻衬底。 作为蚀刻掩模的第二组分,第二层材料,其抵抗反应离子蚀刻,例如二氧化硅,沉积在第一材料层上。 二氧化硅以形成在衬底中的沟槽的形式构图。 然后层状多晶硅材料被反应离子蚀刻,并且反应离子蚀刻继续在硅衬底中形成沟槽。 多晶硅充当被二氧化硅反射的任何离子蚀刻的牺牲材料,或以一定角度被引导使得它们撞击多晶硅材料层。 因此,仅基本上垂直于下面的衬底的那些离子执行沟槽蚀刻。 这允许沟槽具有基本上直的侧壁并且具有基本均匀的宽度。
    • 10. 发明授权
    • Micro-electro-mechanical-system temperature sensor
    • 微机电系统温度传感器
    • US08480302B2
    • 2013-07-09
    • US12892406
    • 2010-09-28
    • Jason P. GillDavid L. HarmonTimothy D. Sullivan
    • Jason P. GillDavid L. HarmonTimothy D. Sullivan
    • G01K5/00G01K7/00
    • G01K5/52
    • The present invention provides a micro-electro-mechanical-system (MEMS) temperature sensor that employs a suspended spiral comprising a material with a positive coefficient of thermal expansion. The thermal expansion of the suspended spiral is guided to by a set of guideposts to provide a linear movement of the free end of the suspended spiral, which is converted to an electrical signal by a set of conductive rotor azimuthal fins that are interdigitated with a set of conductive stator azimuthal fins by measuring the amount of capacitive coupling therebetween. Real time temperature may thus be measured through the in-situ measurement of the capacitive coupling. Optionally, the MEMS temperature sensor may have a ratchet and a pawl to enable ex-situ measurement.
    • 本发明提供了一种微电子机械系统(MEMS)温度传感器,其采用悬浮螺旋,其包括具有正的热膨胀系数的材料。 悬挂螺旋的热膨胀由一组导轨引导以提供悬挂螺旋的自由端的线性运动,其被一组导电转子方位角翅片转换成电信号,所述导电转子方位角翅片与组相互指向 通过测量导电定子方位翅片之间的电容耦合量。 因此可以通过电容耦合的原位测量来测量实时温度。 可选地,MEMS温度传感器可以具有棘轮和棘爪以使得能够进行非原位测量。