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    • 66. 发明授权
    • 프리-스탠딩 질화갈륨 기판 제조방법
    • 制备无定型氮化铝基板的方法
    • KR101186232B1
    • 2012-09-27
    • KR1020110074053
    • 2011-07-26
    • 코닝정밀소재 주식회사
    • 박봉모우광제최준성김준회박철민
    • H01L21/20
    • C04B35/58C04B41/009C04B41/5062C04B41/87C04B2111/0025C04B2111/00844C04B2235/3852C30B25/02C30B25/20C30B29/406H01L33/0075C04B41/4531
    • PURPOSE: A method for manufacturing a free-standing gallium nitride substrate is provided to prevent a substrate from being bent and crack generation by manufacturing the free-standing gallium nitride substrate using polycrystalline gallium nitride substrate having similar thermal expansion coefficients. CONSTITUTION: Polycrystalline gallium nitride powder deposited on a reactor or a susceptor is collected. The collected polycrystalline gallium nitride powder is put in a molding frame. A polycrystalline gallium nitride substrate is manufactured by sintering the polycrystalline gallium nitride powder. A single crystal gallium nitride layer letting single crystal gallium nitride grow is formed on the polycrystalline gallium nitride substrate. [Reference numerals] (AA) Power collection step; (BB) Mounting step; (CC) Polycrystalline gallium nitride substrate manufacturing step; (DD) Single crystal gallium nitride layer forming step
    • 目的:提供一种用于制造独立式氮化镓衬底的方法,以通过使用具有相似热膨胀系数的多晶氮化镓衬底制造独立的氮化镓衬底来防止衬底弯曲和产生裂纹。 构成:沉积在反应器或基座上的多晶氮化镓粉末被收集。 将收集的多晶氮化镓粉末放入模制框架中。 通过烧结多晶氮化镓粉末来制造多晶氮化镓衬底。 在多晶氮化镓衬底上形成使单晶氮化镓生长的单晶氮化镓层。 (附图标记)(AA)电力收集步骤; (BB)安装步骤; (CC)多晶氮化镓衬底制造步骤; (DD)单晶氮化镓层形成步骤
    • 68. 发明公开
    • 지르코늄디보라이드-실리콘카바이드 복합소재 및 그 제조방법
    • 二硼化钛 - 碳化硅复合材料及其制造方法
    • KR1020120072884A
    • 2012-07-04
    • KR1020100134806
    • 2010-12-24
    • 한국세라믹기술원
    • 김성원채정민오윤석이성민김형태김경자
    • C04B35/565C04B35/58C04B35/645
    • C04B35/58C04B35/565C04B35/645C04B2235/5454
    • PURPOSE: A zirconium diboride-silicon carbide composite material and a manufacturing method thereof are provided to improve mechanical strength and oxidation resistance of ZrB2-SiC composite material and to prevent growth of zirconium diboride. CONSTITUTION: A manufacturing method of A zirconium diboride-silicon carbide composite material comprises the following steps: mixing zirconium diboride with a solvent in which polycarbosilane is dissolved; obtaining zirconium which is coated with polycarbosilane by drying the mixture; a first heat treating the zirconium diboride at 1100-1500 deg. Celsius and converting the polycarbosilane into silicon carbide by pyrolysis; and increasing temperature of the zirconium diboride which is surrounded with the silicon carbide to a second heat treating temperature; and sintering while pressurizing. The second heat treating temperature is higher than 1100-1500 deg. Celsius.
    • 目的:提供二硼化锆 - 碳化硅复合材料及其制造方法,以提高ZrB2-SiC复合材料的机械强度和抗氧化性,并防止二硼化锆的生长。 构成:二硼化锆 - 碳化硅复合材料的制造方法包括以下步骤:将二硼化锆与溶解有聚碳硅烷的溶剂混合; 通过干燥混合物获得涂覆有聚碳硅烷的锆; 在1100-1500度下首先热处理二硼化锆。 摄氏度,并通过热解将聚碳硅烷转化为碳化硅; 并且将由碳化硅包围的二硼化锆的温度升高至第二热处理温度; 并加压烧结。 第二热处理温度高于1100-1500度。 摄氏度。