Method for forming suspended microstructures

    公开(公告)号:US20040079277A1

    公开(公告)日:2004-04-29

    申请号:US10278471

    申请日:2002-10-23

    CPC classification number: B81C1/00182 B81B2203/0315 B81C2201/0191

    Abstract: A method for forming a suspended microstructure is provided. The method includes providing a monocrystalline target substrate and subjecting the surface of the monocrystalline target substrate to ion implantation to form a microstructure layer at the surface of the monocrystalline target substrate. An epitaxial material layer is formed overlying the microstructure layer. A handle substrate is provided and a patterned interposed material layer is provided between the epitaxial material layer and the handle substrate. The epitaxial material layer, the patterned interposed material layer and the handle substrate are affixed. The method further includes thermally treating the monocrystalline target substrate to effect separation between the microstructure layer and a remainder of the monocrystalline target substrate.

    Epitaxial silicon wafer
    72.
    发明申请
    Epitaxial silicon wafer 审中-公开
    外延硅晶片

    公开(公告)号:US20040065250A1

    公开(公告)日:2004-04-08

    申请号:US10679031

    申请日:2003-10-03

    CPC classification number: C30B15/04 C30B15/00 C30B29/06

    Abstract: An epitaxial silicon wafer which comprises a silicon wafer produced by a method characterized as comprising pulling up a silicon single crystal under a condition wherein when an oxygen concentration is 7null1017 atoms/cm3 a nitrogen concentration is about 3null1015 atoms/cm3 or less, and when an oxygen concentration is 1.6null1018 atoms/cm3 a nitrogen concentration is about 3null1014 atoms/cm3 or less, and, an epitaxial film formed on the wafer. The epitaxial film, being formed on such a wafer, has crystal defects, which are observed as LPD of 120 nm or more on the epitaxial film, in a range of 20 pieces/200-mm wafer or less. The epitaxial silicon wafer contains nitrogen atoms doped therein and also has satisfactory characteristics as that for use in a semiconductor device.

    Abstract translation: 一种外延硅晶片,其包括通过以下方法制造的硅晶片,所述方法的特征在于包括在氧浓度为7×10 17原子/ cm 3时提高硅单晶,氮浓度为约3×10 15 原子/ cm 3以下,当氧浓度为1.6×10 18原子/ cm 3时,氮浓度为约3×10 14原子/ cm 3以下,形成外延膜 在晶圆上。 在这种晶片上形成的外延膜具有晶体缺陷,其在外延膜上的L DD为120nm以上,在20个/ 200mm以下的晶片的范围内。 外延硅晶片含有掺杂的氮原子,并且具有与在半导体器件中使用的特性一样的令人满意的特性。

    Liquid-crystalline medium having high birefringence
    73.
    发明申请
    Liquid-crystalline medium having high birefringence 有权
    具有高双折射性的液晶介质

    公开(公告)号:US20040055529A1

    公开(公告)日:2004-03-25

    申请号:US10658471

    申请日:2003-09-10

    Abstract: Liquid-crystalline medium having a dielectric anisotropy nullnull of null3, comprising compounds of the general formula (I), 1 in which R is as defined herein, are suitable for use as liquid-crystalline media for, e.g., IPS, MLC, TN or STN displays, but in particular for LCoS displays. The media have very high specific resistance values, low threshold voltages, short response times and high birefringence values nullnull, while maintaining other boundary conditions.

    Abstract translation: 具有介电各向异性的液晶介质Deltaepsilon> 3,包含通式(I)的化合物,其中R如本文所定义,适用于例如IPS,MLC,TN的液晶介质 或STN显示,但特别是LCoS显示。 介质具有非常高的比电阻值,低阈值电压,短响应时间和高双折射值Deltaepsilon,同时保持其他边界条件。

    Substrate and manufacturing method therefor
    74.
    发明申请
    Substrate and manufacturing method therefor 审中-公开
    基板及其制造方法

    公开(公告)号:US20040040492A1

    公开(公告)日:2004-03-04

    申请号:US10653949

    申请日:2003-09-04

    CPC classification number: H01L21/76259 H01L27/10861 H01L27/10894

    Abstract: A partial SOI substrate is obtained by performing a step of forming a partial insulating layer on the first substrate, a step of selectively growing the first semiconductor layer on an exposed portion of the first substrate, a step of growing the second semiconductor layer in the partial insulating layer on the first semiconductor layer, and a step of forming a bonded substrate by bonding the second substrate to the second semiconductor layer of the first substrate.

    Abstract translation: 部分SOI衬底是通过在第一衬底上形成部分绝缘层的步骤,在第一衬底的暴露部分选择性地生长第一半导体层的步骤,在部分绝缘层中生长第二半导体层的步骤 绝缘层,以及通过将第二衬底接合到第一衬底的第二半导体层来形成接合衬底的步骤。

    Method and apparatus for preparation of binary and higher order compounds and devices fabricated using same
    75.
    发明申请
    Method and apparatus for preparation of binary and higher order compounds and devices fabricated using same 失效
    制备二元和更高级化合物的方法和装置以及使用其制造的器件

    公开(公告)号:US20040035356A1

    公开(公告)日:2004-02-26

    申请号:US10296909

    申请日:2003-05-20

    CPC classification number: C30B11/00 C30B23/00 C30B23/002 C30B29/48

    Abstract: A heat treatment chamber (30) is provided comprising a treatment region containing a charge (5) of compound material comprising a plurality of n atomic species, each atomic species being associated with at least one gas species. The chamber (30) is placed in a furnace (7). The chamber has a gas permeable barrier, constituted by a plug (4) and wadding (6), which partially encloses the treatment region. The barrier serves as an effusive hole to inhibit, but not prevent, gas vapour release, thereby to elevate the gas vapour pressure in the treatment region. Application of inert gas through a valve (8) is also used to increase background pressure in the treatment region during heat treatment. The elevated gas pressures present in the treatment region during treatment are measurable in an absorption cell (3) adjacent to the treatment region. It is thus possible to monitor the gas pressures during heat treatment and thereby stop the heat treatment once a desired charge stoichiometry is achieved. This improves over prior art heat treatment which is carried out in vacuum and thus precludes optical absorption measurement of the gas pressures during heat treatment.

    Abstract translation: 提供了一种热处理室(30),其包括含有包含多个n原子物质的复合材料的电荷(5)的处理区域,每个原子物质与至少一种气体物质相关联。 室(30)放置在炉(7)中。 腔室具有气体渗透屏障,由塞子(4)和填塞物(6)构成,其部分地包围处理区域。 阻挡层用作抑制气体蒸气释放而不是防止气体蒸发的渗出孔,从而提高处理区域中的气体蒸汽压力。 惰性气体通过阀门(8)的应用也用于在热处理过程中提高处理区域的背景压力。 处理期间处理区域中存在的升高的气体压力可在与处理区域相邻的吸收池(3)中测量。 因此,可以在热处理期间监测气体压力,从而一旦达到所需的电荷化学计量即可停止热处理。 这比在真空中进行的现有技术的热处理改进,因此排除热处理期间气体压力的光吸收测量。

    Method for growing thin oxide films
    76.
    发明申请
    Method for growing thin oxide films 有权
    生长薄氧化膜的方法

    公开(公告)号:US20040007171A1

    公开(公告)日:2004-01-15

    申请号:US10618429

    申请日:2003-07-10

    Abstract: A method is provided for growing thin oxide films on the surface of a substrate by alternatively reacting the surface of the substrate with a metal source material and an oxygen source material. The oxygen source material is preferably a metal alkoxide. The metal source material may be a metal halide, hydride, alkoxide, alkyl, a cyclopentadienyl compound, or a diketonate.

    Abstract translation: 提供了一种用于通过交替地使基板的表面与金属源材料和氧源材料反应来在衬底的表面上生长薄氧化膜的方法。 氧源材料优选为金属醇盐。 金属源材料可以是金属卤化物,氢化物,醇盐,烷基,环戊二烯基化合物或二酮酸盐。

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