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    • 8. 发明申请
    • Method and apparatus for reducing particle formation in a vapor distribution system
    • 用于减少蒸气分配系统中的颗粒形成的方法和装置
    • US20070218200A1
    • 2007-09-20
    • US11377237
    • 2006-03-16
    • Kenji SuzukiAtsushi GomiMasamichi HaraYasushi Mizusawa
    • Kenji SuzukiAtsushi GomiMasamichi HaraYasushi Mizusawa
    • C23C16/00
    • C23C16/16C23C16/4402C23C16/4481C23C16/45512C23C16/45565C23C16/45574
    • A method and system is described for reducing particle contamination in a vapor distribution system. The vapor distribution system comprises a housing and a vapor distribution head comprising a plurality of openings configured to introduce a film precursor vapor to a deposition system. The housing and vapor distribution head define a plenum coupled to a film precursor evaporation system, and configured to receive the film precursor vapor from the evaporation system and distribute the film precursor vapor within the deposition system through the plurality of openings. In order to reduce particle contamination, the vapor distribution system is designed to reduce the difference, or ratio, between the pressure in the plenum and the pressure in the deposition system. For example, the plenum pressure can be less than twice the pressure in the process space, or can be less than 50 mTorr, 30 mTorr or even 20 mTorr than the pressure in the process space.
    • 描述了一种用于减少蒸气分配系统中的颗粒污染的方法和系统。 蒸气分配系统包括壳体和蒸汽分配头,蒸汽分配头包括多个开口,其被配置为将膜前体蒸气引入沉积系统。 壳体和蒸气分配头限定了与膜前体蒸发系统耦合的增压室,并且构造成从蒸发系统接收膜前体蒸汽并且通过多个开口将膜前体蒸汽分散在沉积系统内。 为了减少颗粒污染,蒸汽分配系统被设计成减小气室中的压力与沉积系统中的压力之间的差异或比例。 例如,充气压力可以小于过程空间中的压力的​​两倍,或者可以小于处理空间中的压力的​​50mTorr,30mTorr或甚至20mTorr。