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    • 5. 发明专利
    • System for producing and supplying thermal cleaning gas
    • 生产和供应热清洁气体的系统
    • JP2010192873A
    • 2010-09-02
    • JP2009269024
    • 2009-11-26
    • L'air Liquide-Sa Pour L'etude & L'exploitation Des Procedes Georges Claudeレール・リキード−ソシエテ・アノニム・プール・レテュード・エ・レクスプロワタシオン・デ・プロセデ・ジョルジュ・クロード
    • TADAKI YUDAI
    • H01L21/31C23C16/44H01L21/205H01L21/3065
    • C23C16/4405
    • PROBLEM TO BE SOLVED: To provide a method and an apparatus adapted to meet the requirements for cleaning deposition of undesired substance on a regular basis, with a minimum downtime, to rmaintain high production quality, when a substance intended to deposit on a substrate deposits on various surfaces in a semiconductor processing chamber to form a deposition of undesired substance. SOLUTION: A cleaning gas mixture 106 is stored in a buffer tank 107 over a time duration using a device provided with a preliminary reaction vessel 102 and the buffer tank 107 for the cleaning gas mixture and is then introduced into the a semiconductor processing chamber 100. The cleaning gas mixture removes the undesired substance from the various surfaces in the chamber, without the generation of a plasma at a temperature below 300°C. As a processing gas, a gas is employed that is produced through a preliminary reaction of NF3 and NO at a ratio NF3: NO=1:1 to 5:1, and as the undesired substance on the surfaces is PSG, BPSG, SiO2, SiN, SiON, poly Si, αSi, microcrystal Si, and/or M (M: Ta, Ti, Zr, Hf, W), M, MN, MOx, MON, MSiOxNy, etc. can be cited. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种方法和装置,其适于满足清洁非期望物质沉积的要求,在最小停机时间内,为了保持高的生产质量,当要沉积在 衬底沉积在半导体处理室中的各个表面上以形成不需要的物质的沉积。 解决方案:清洁气体混合物106使用装备有初步反应容器102的设备和用于清洁气体混合物的缓冲罐107在一段时间内储存在缓冲罐107中,然后被引入半导体加工 清洁气体混合物从室中的各个表面除去不期望的物质,而不会在低于300℃的温度下产生等离子体。 作为处理气体,使用通过NF3和NO的比例NF3:NO = 1:1〜5:1的预反应生成的气体,并且由于表面上的不需要的物质是PSG,BPSG,SiO 2, 可以列举SiN,SiON,polySi,αSi,微晶Si和/或M(M:Ta,Ti,Zr,Hf,W),M,MN,MOx,MON,MSiOxNy等。 版权所有(C)2010,JPO&INPIT