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    • 1. 发明公开
    • 고순도 탄화규소 분말의 제조방법
    • 用于制造具有高纯度的SIC粉末的方法
    • KR1020130104447A
    • 2013-09-25
    • KR1020120025947
    • 2012-03-14
    • 한국과학기술연구원엘지이노텍 주식회사
    • 박상환한경섭윤성호양진오조경선염미래조영철
    • C01B31/36C01B33/12
    • C01B31/36C01B32/956C01B33/12
    • PURPOSE: A production method of silicon carbide powder is provided to control the size and the crystalline of the silicon carbide powder by adjusting the heat processing temperature and time, and changing the composition of a gaseous silicon source and a solid carbon source. CONSTITUTION: A production method of silicon carbide powder comprises the following steps: mixing and drying metallic silicon, silica powder, and a thermoplastic resin to obtain a starting raw material for producing a gaseous silicon source; locating the starting raw material for producing the gaseous silicon source on the bottom of a graphite crucible, locating a graphite separator on the upper side of the starting raw material for producing the gaseous silicon source, and locating a solid carbon source on the upper side of the graphite separator before closing a lid of the graphite crucible to form a reaction system to produce the silicon carbide powder; and heat processing the reaction system under the argon atmosphere.
    • 目的:提供碳化硅粉末的制造方法,通过调节热处理温度和时间,改变气态硅源和固体碳源的组成来控制碳化硅粉末的尺寸和结晶。 构成:碳化硅粉末的制造方法包括以下步骤:将金属硅,二氧化硅粉末和热塑性树脂混合干燥,得到气态硅源的制造原料, 将用于生产气态硅源的起始原料定位在石墨坩埚的底部,将石墨隔板定位在用于生产气态硅源的起始原料的上侧,并将固体碳源定位在 在石墨坩埚盖上关闭石墨隔板,形成碳化硅粉末的反应体系; 并在氩气氛下热处理反应体系。
    • 8. 发明公开
    • 고순도 베타상 탄화규소 미세 분말의 저온 제조 방법
    • 一种低温高纯度SIC微粉的制备方法
    • KR1020100115993A
    • 2010-10-29
    • KR1020090034686
    • 2009-04-21
    • 한국과학기술연구원
    • 박상환조경선김규미정훈조영철
    • C01B31/36C04B35/565
    • C01B32/956C01P2004/64C04B35/565
    • PURPOSE: A method for manufacturing β phase silicon carbide micro powder with high purity at low temperature is provided to use silicon carbide powder under 1 micrometer in a jig for a high temperature process for a semiconductor. CONSTITUTION: A method for manufacturing β phase silicon carbide micro powder with high purity at low temperature comprises the following steps. Silicon compound liquid and carbon compound are mixed to make a mole ratio be in the range of 2.0 to 5.0. And a water solution is added to the mixture. The mixture is stirred to be gel or powder. Silicon carbon precursor micro powder is obtained by heating gel powder. Silicon powder or silicon ingot is added to the silicon carbon precursor micro powder. The silicon carbon precursor micro powder is heated at 1250~1600°C to obtain silicon carbon micro powder.
    • 目的:提供在低温下制备高纯度的β相碳化硅微粉的方法,在用于半导体的高温工艺的夹具中使用1微米的碳化硅粉末。 构成:在低温下制备高纯度的β相碳化硅微粉的方法包括以下步骤。 混合硅化合物液体和碳化合物使摩尔比在2.0至5.0的范围内。 并向混合物中加入水溶液。 将混合物搅拌成凝胶或粉末。 通过加热凝胶粉末获得硅碳前体微粉末。 将硅粉或硅锭加入硅碳前体微粉中。 硅碳前驱体微粉末在1250〜1600℃下加热得到硅碳微粉末。