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    • 3. 发明公开
    • OXIDE FILM FORMING METHOD
    • OXIDFILMAUSBILDUNGSVERFAHREN
    • EP1372189A4
    • 2005-12-28
    • EP02701646
    • 2002-02-28
    • TOKYO ELECTRON LTD
    • HISHIYA SHINGOAKIYAMA KOJIFURUSAWA YOSHIKAZUAOKI KIMIYA
    • H01L29/78H01L21/316
    • H01L21/02238H01L21/02255H01L21/02299H01L21/31658H01L21/31662Y10S438/909
    • An oxide film forming method capable of advantageously forming a quality oxide film high in film thickness and film quality uniformity over the entire wafer, the method comprising a pre-treating process of oxidizing, by activated oxidizing species or atmosphere containing activated oxidizing species under a depressurized condition, a wafer disposed in a reaction container to form a protection oxide film on the surface of the wafer, and an oxide film forming process of oxidizing the wafer under a depressurized condition at a specified temperature to form an oxide film. The oxide film forming process is preferably performed continuously from the pre-treating process in the reaction container in which the pre-treating process is carried out. The pre-treating process is preferably carried out at temperatures lower than those in the oxide film forming process, and under depressurized conditions higher in level of depressurization than those in the oxide film forming process. This oxide film forming method can form a quality gate insulating film for a transistor element.
    • 一种氧化膜形成方法,其能够有利地在整个晶片上形成膜厚和膜质均匀性良好的高质量氧化膜,所述方法包括在减压下通过活化的氧化种或含有活化的氧化种的气氛氧化的预处理过程 放置在反应容器中以在晶片的表面上形成保护氧化物膜的晶片,以及在减压条件下在特定温度下氧化晶片以形成氧化物膜的氧化物膜形成处理。 氧化膜形成工序优选从进行了前处理工序的反应容器内的前处理工序连续进行。 预处理工艺优选在低于氧化膜形成工艺的温度下进行,并且在减压水平高于氧化膜形成工艺中的减压条件下进行。 该氧化物膜形成方法可以形成用于晶体管元件的高质量栅极绝缘膜。