Nitride ceramics to mount aluminum nitride seed for sublimation growth
    1.
    发明授权
    Nitride ceramics to mount aluminum nitride seed for sublimation growth 有权
    氮化硅陶瓷用于安装氮化铝种子用于升华生长

    公开(公告)号:US07087112B1

    公开(公告)日:2006-08-08

    申请号:US10725869

    申请日:2003-12-02

    IPC分类号: C30B29/38

    CPC分类号: C30B29/403 C30B23/00

    摘要: An apparatus and method for fabricating a mount for an aluminum nitride (AlN) seed for single crystal aluminum nitride growth is provided. A holder having a proximal base and wall portions extending therefrom is fabricated from crystal growth crucible material, and defines an internal cavity. An AlN seed is placed within the holder, and placed within a nitrogen atmosphere at a temperature at or exceeding the melting point of a suitable material capable of forming a nitride ceramic by nitridation, such as aluminum. Pellets fabricated from this material are dropped into the holder and onto the seed, so that they melt and react with the nitrogen atmosphere to form a nitride ceramic. The seed is effectively molded in-situ with the ceramic, so that the ceramic and holder forms a closely conforming holder for the seed, suitable for single crystal AlN growth.

    摘要翻译: 提供了一种用于制造用于单晶氮化铝生长的氮化铝(AlN)种子的安装件的装置和方法。 具有近端基部和从其延伸的壁部分的保持器由晶体生长坩埚材料制成,并且限定内部空腔。 将AlN种子放置在保持器内,并且在氮气气氛中放置在能够通过氮化形成氮化物陶瓷的合适材料的熔点或超过其熔点的温度,例如铝。 将由该材料制成的颗粒滴入保持器和种子上,使其熔融并与氮气气氛反应形成氮化物陶瓷。 种子与陶瓷有效地原位成型,使得陶瓷和保持器形成适合于单晶AlN生长的种子的紧密配合的保持器。

    Method for polishing a substrate surface
    2.
    发明授权
    Method for polishing a substrate surface 有权
    抛光基材表面的方法

    公开(公告)号:US07323414B2

    公开(公告)日:2008-01-29

    申请号:US11363816

    申请日:2006-02-28

    IPC分类号: H01L21/461 H01L21/302

    摘要: According to one aspect of the invention, an improved process for preparing a surface of substrate is provided wherein the surface of the substrate is prepared for a chemical mechanical polishing (CMP) process, the CMP process is performed on the surface of the substrate, and the surface of the substrate is finished to clear the substrate surface of any active ingredients from the CMP process. Also, an improved substrate produced by the method is provided. According to one aspect of the invention, particular polishing materials and procedures may be used that allow for increased quality of AlN substrate surfaces.

    摘要翻译: 根据本发明的一个方面,提供了一种用于制备衬底表面的改进方法,其中衬底的表面准备用于化学机械抛光(CMP)工艺,在衬底的表面上进行CMP工艺,以及 完成基材的表面以从CMP工艺中清除任何活性成分的基材表面。 此外,提供了通过该方法制备的改进的基板。 根据本发明的一个方面,可以使用允许增加AlN衬底表面质量的特定抛光材料和程序。

    Method for polishing a substrate surface
    3.
    发明授权
    Method for polishing a substrate surface 有权
    抛光基材表面的方法

    公开(公告)号:US07037838B2

    公开(公告)日:2006-05-02

    申请号:US10300481

    申请日:2002-11-20

    IPC分类号: H01L21/302 H01L21/461

    摘要: According to one aspect of the invention, an improved process for preparing a surface of substrate is provided wherein the surface of the substrate is prepared for a chemical mechanical polishing (CMP) process, the CMP process is performed on the surface of the substrate, and the surface of the substrate is finished to clear the substrate surface of any active ingredients from the CMP process. Also, an improved substrate produced by the method is provided. According to one aspect of the invention, particular polishing materials and procedures may be used that allow for increased quality of AlN substrate surfaces.

    摘要翻译: 根据本发明的一个方面,提供了一种用于制备衬底表面的改进方法,其中衬底的表面准备用于化学机械抛光(CMP)工艺,在衬底的表面上进行CMP工艺,以及 完成基材的表面以从CMP工艺中清除任何活性成分的基材表面。 此外,提供了通过该方法制备的改进的基板。 根据本发明的一个方面,可以使用允许增加AlN衬底表面质量的特定抛光材料和程序。

    Method for configuring a system to grow a crystal by coupling a heat transfer device comprising at least one elongate member beneath a crucible
    7.
    发明授权
    Method for configuring a system to grow a crystal by coupling a heat transfer device comprising at least one elongate member beneath a crucible 有权
    通过将包括至少一个细长构件的传热装置连接在坩埚下方来配置系统以生长晶体的方法

    公开(公告)号:US09206525B2

    公开(公告)日:2015-12-08

    申请号:US13308151

    申请日:2011-11-30

    IPC分类号: C30B11/00 C30B29/48

    摘要: Systems and methods for crystal growth are provided. One method includes producing a lateral thermal profile in a furnace having a crucible therein containing a material for growing a crystal. The lateral thermal profile has three zones, wherein the first and third zones have temperatures above and below a melting point of the material, respectively, and the second zone has a plurality of temperatures with at least one temperature equal to the melting point of the material. The method further includes combining the lateral thermal profile with a vertical thermal gradient produced in the furnace, wherein the vertical thermal gradient causes a point in a bottom of the crucible located in the third zone to be the coldest point in the crucible. The method also includes transferring heat from the first and second zones to the third zone to produce a leading edge of the interface.

    摘要翻译: 提供了晶体生长的系统和方法。 一种方法包括在其中具有坩埚的炉子中产生横向热分布,其中含有用于生长晶体的材料。 横向热轮廓具有三个区域,其中第一和第三区域分别具有高于和低于材料熔点的温度,并且第二区域具有多个温度,其中至少一个温度等于材料的熔点 。 该方法还包括将横向热分布与在炉中产生的垂直热梯度组合,其中垂直热梯度使位于第三区域中的坩埚底部的点成为坩埚中的最冷点。 该方法还包括将热从第一和第二区转移到第三区以产生界面的前缘。

    Methods for forming back contact electrodes for cadmium telluride photovoltaic cells
    8.
    发明授权
    Methods for forming back contact electrodes for cadmium telluride photovoltaic cells 有权
    形成碲化镉光电池的接触电极的方法

    公开(公告)号:US08524524B2

    公开(公告)日:2013-09-03

    申请号:US12765225

    申请日:2010-04-22

    IPC分类号: H01L21/00

    摘要: A method for forming a back contact for a photovoltaic cell that includes at least one semiconductor layer is provided. The method includes applying a continuous film of a chemically active material on a surface of the semiconductor layer and activating the chemically active material such that the activated material etches the surface of the semiconductor layer. The method further includes removing the continuous film of the activated material from the photovoltaic cell and depositing a metal contact layer on the etched surface of the semiconductor layer.

    摘要翻译: 提供一种用于形成包括至少一个半导体层的光伏电池的背接触的方法。 该方法包括在半导体层的表面上施加化学活性材料的连续膜并激活化学活性材料,使得活化的材料蚀刻半导体层的表面。 该方法还包括从光伏电池移除活化材料的连续膜并在半导体层的蚀刻表面上沉积金属接触层。

    SYSTEMS AND METHODS FOR CRYSTAL GROWTH
    9.
    发明申请
    SYSTEMS AND METHODS FOR CRYSTAL GROWTH 有权
    晶体生长的系统和方法

    公开(公告)号:US20130133568A1

    公开(公告)日:2013-05-30

    申请号:US13308151

    申请日:2011-11-30

    IPC分类号: C30B11/00

    摘要: Systems and methods for crystal growth are provided. One method includes producing a lateral thermal profile in a furnace having a crucible therein containing a material for growing a crystal. The lateral thermal profile has three zones, wherein the first and third zones have temperatures above and below a melting point of the material, respectively, and the second zone has a plurality of temperatures with at least one temperature equal to the melting point of the material. The method further includes combining the lateral thermal profile with a vertical thermal gradient produced in the furnace, wherein the vertical thermal gradient causes a point in a bottom of the crucible located in the third zone to be the coldest point in the crucible. The method also includes transferring heat from the first and second zones to the third zone to produce a leading edge of the interface.

    摘要翻译: 提供了晶体生长的系统和方法。 一种方法包括在其中具有坩埚的炉子中产生横向热分布,其中含有用于生长晶体的材料。 横向热轮廓具有三个区域,其中第一和第三区域分别具有高于和低于材料熔点的温度,并且第二区域具有多个温度,其中至少一个温度等于材料的熔点 。 该方法还包括将横向热分布与在炉中产生的垂直热梯度组合,其中垂直热梯度使位于第三区域中的坩埚底部的点成为坩埚中的最冷点。 该方法还包括将热从第一和第二区转移到第三区以产生界面的前缘。

    PHOTOVOLTAIC CELL AND METHODS FOR FORMING A BACK CONTACT FOR A PHOTOVOLTAIC CELL
    10.
    发明申请
    PHOTOVOLTAIC CELL AND METHODS FOR FORMING A BACK CONTACT FOR A PHOTOVOLTAIC CELL 审中-公开
    用于形成光伏电池背部接触的光电池和方法

    公开(公告)号:US20110315220A1

    公开(公告)日:2011-12-29

    申请号:US12826234

    申请日:2010-06-29

    摘要: Methods are provided for forming a back contact for a photovoltaic cell that includes at least one semiconductor layer. One method includes depositing at least one back contact material on a metal contact. The back contact material comprises a metal nitride or a metal phosphide. The method further includes depositing an absorber layer comprising cadmium and tellurium above the back contact material and thermally processing the back contact material, such that the back contact material interacts with the absorber layer to form an interlayer that lowers a contact resistance for the photovoltaic cell. A photovoltaic cell is also provided and includes comprising a metal contact, at least one back contact material disposed on the metal contact, and an absorber layer comprising a material comprising cadmium and tellurium disposed above the back contact material. An interlayer is disposed between the back contact material and the absorber layer and comprises a compositionally graded layer of the back contact material and the absorber layer material. The photovoltaic cell further includes a window layer disposed above the absorber layer.

    摘要翻译: 提供了用于形成包括至少一个半导体层的光伏电池的背接触的方法。 一种方法包括在金属接触件上沉积至少一个背接触材料。 背面接触材料包括金属氮化物或金属磷化物。 该方法还包括在背接触材料上沉积包括镉和碲的吸收层,并对后接触材料进行热处理,使得背接触材料与吸收层相互作用以形成降低光伏电池的接触电阻的中间层。 还提供了一种光伏电池,其包括金属接触件,设置在金属接触件上的至少一个背接触材料以及包含设置在背面接触材料上方的包含镉和碲的材料的吸收层。 中间层设置在背接触材料和吸收层之间,并且包括背接触材料和吸收层材料的组成梯度层。 光伏电池还包括设置在吸收层上方的窗口层。