METHOD AND APPARATUS FOR DRY CLEANING A COOLED SHOWERHEAD
    51.
    发明申请
    METHOD AND APPARATUS FOR DRY CLEANING A COOLED SHOWERHEAD 审中-公开
    干燥清洗干衣机的方法和装置

    公开(公告)号:US20110030615A1

    公开(公告)日:2011-02-10

    申请号:US12847713

    申请日:2010-07-30

    IPC分类号: C23C16/52 B08B7/00

    摘要: The present invention generally provides a method and apparatus for cleaning a showerhead of a deposition chamber, such as a metal organic chemical vapor deposition (MOCVD) chamber. In one embodiment, the showerhead is cleaned without exposing the chamber to the atmosphere outside of the chamber (i.e., in situ cleaning). In one embodiment, flow of liquid coolant through a cooling system that is in fluid communication with the showerhead is redirected to bypass the showerhead, and the liquid coolant is drained from the showerhead. In one embodiment, any remaining coolant is flushed from the showerhead via a pressurized gas source. In one embodiment, the showerhead is then heated to an appropriate cleaning temperature. In one embodiment, the flow of liquid coolant from the cooling system is then redirected to the showerhead and the system is adjusted for continued processing. Thus, the entire showerhead cleaning process is performed with minimal change to the flow of coolant through the cooling system.

    摘要翻译: 本发明总体上提供了一种用于清洁诸如金属有机化学气相沉积(MOCVD)室的沉积室的喷头的方法和装置。 在一个实施例中,清洁喷头而不将室暴露于室外的大气(即,原位清洁)。 在一个实施例中,通过与喷头流体连通的冷却系统的液体冷却剂的流动被重定向以绕过喷头,并且液体冷却剂从喷头排出。 在一个实施例中,任何剩余的冷却剂通过加压气体源从喷头冲洗。 在一个实施例中,然后将喷头加热到适当的清洁温度。 在一个实施例中,来自冷却系统的液体冷却剂的流动然后被重定向到喷头,并且系统被调整以用于继续处理。 因此,整个喷头清洁过程是通过冷却系统对冷却剂流动的最小变化进行的。

    METHOD FOR DEPOSITING GROUP III/V COMPOUNDS
    55.
    发明申请
    METHOD FOR DEPOSITING GROUP III/V COMPOUNDS 审中-公开
    沉积III / V族化合物的方法

    公开(公告)号:US20090149008A1

    公开(公告)日:2009-06-11

    申请号:US12244440

    申请日:2008-10-02

    IPC分类号: H01L21/20

    摘要: Embodiments of the invention generally relate to methods for forming Group III-V materials by a hydride vapor phase epitaxy (HVPE) process. In one embodiment, a method for forming a gallium nitride material on a substrate within a processing chamber is provided which includes heating a metallic source to form a heated metallic source, wherein the heated metallic source contains gallium, aluminum, indium, alloys thereof, or combinations thereof, exposing the heated metallic source to chlorine gas while forming a metallic chloride gas, exposing the substrate to the metallic chloride gas and a nitrogen precursor gas while forming a metal nitride layer on the substrate during the HVPE process. The method further provides exposing the substrate to chlorine gas during a pretreatment process prior to forming the metal nitride layer. In one example, the exhaust conduit of the processing chamber is heated to about 200° C. or less during the pretreatment process.

    摘要翻译: 本发明的实施方案一般涉及通过氢化物气相外延(HVPE)方法形成III-V族材料的方法。 在一个实施例中,提供了一种用于在处理室内的衬底上形成氮化镓材料的方法,其包括加热金属源以形成加热的金属源,其中加热的金属源包含镓,铝,铟,其合金或 其组合,同时形成金属氯化物气体,将加热的金属源暴露于氯气中,在HVPE工艺期间在衬底上形成金属氮化物层,同时将衬底暴露于金属氯化物气体和氮气前体气体。 该方法还在形成金属氮化物层之前在预处理工艺期间将衬底暴露于氯气。 在一个实例中,处理室的排气管道在预处理过程中被加热到约200℃或更低。

    Method and apparatus for producing group-III nitrides
    57.
    发明授权
    Method and apparatus for producing group-III nitrides 有权
    用于生产III族氮化物的方法和装置

    公开(公告)号:US06350666B2

    公开(公告)日:2002-02-26

    申请号:US09735218

    申请日:2000-12-12

    申请人: Olga Kryliouk

    发明人: Olga Kryliouk

    IPC分类号: C30B2502

    摘要: The subject invention pertains to a method and device for producing large area single crystalline III-V nitride compound semiconductor substrates with a composition AlxInyGa1-x-y N (where 0≦x≦1, 0≦y≦1, and 0≦x+y≦1). In a specific embodiment, GaN substrates, with low dislocation densities (˜107 cm2) can be produced. These crystalline III-V substrates can be used to fabricate lasers and transistors. Large area free standing single crystals of III-V compounds, for example GaN, can be produced in accordance with the subject invention. By utilizing the rapid growth rates afforded by hydride vapor phase epitaxy (HVPE) and growing on lattice matching orthorhombic structure oxide substrates, good quality III-V crystals can be grown. Examples of oxide substrates include LiGaO2, LiAlO2, MgAlScO4, Al2MgO4, and LiNdO2. The subject invention relates to a method and apparatus, for the deposition of III-V compounds, which can alternate between MOVPE and HVPE, combining the advantages of both. In particular, the subject hybrid reactor can go back and forth between MOVPE and HVPE in situ so that the substrate does not have to be transported between reactor apparatus and, therefore, cooled between the performance of different growth techniques.

    摘要翻译: 本发明涉及一种用于制备具有组成Al x In y Ga 1-xy N(其中0≤x≤1,0<= y <= 1,和0≤x≤1)的大面积单晶III-V族氮化物化合物半导体衬底的方法和装置, = x + y <= 1)。 在具体实施方案中,可以生产具有低位错密度(〜107cm 2)的GaN衬底。 这些晶体III-V衬底可用于制造激光器和晶体管。 根据本发明可以制备III-V族化合物的大面积自立单晶,例如GaN。 通过利用由氢化物气相外延(HVPE)提供的快速生长速率并在晶格匹配正交结构氧化物衬底上生长,可以生长出优质的III-V晶体。 氧化物基板的实例包括LiGaO 2,LiAlO 2,MgAlScO 4,Al 2 MgO 4和LiNdO 2。 本发明涉及用于沉积III-V化合物的方法和装置,其可以在MOVPE和HVPE之间交替,结合两者的优点。 特别地,目标混合反应器可以在MOVPE和HVPE之间来回地进行原位处理,使得基板不必在反应器装置之间传输,因此在不同生长技术的性能之间进行冷却。