首页> 外国专利> Thin, silicon-contg. organic layers prodn. - by irradiation of organo-silane(s)-alkoxy:silane(s) or -siloxane(s) with pulsed laser light of specified wavelength, pulse length, frequency and energy

Thin, silicon-contg. organic layers prodn. - by irradiation of organo-silane(s)-alkoxy:silane(s) or -siloxane(s) with pulsed laser light of specified wavelength, pulse length, frequency and energy

机译:薄的硅接触。有机层产品-通过用规定波长,脉冲长度,频率和能量的脉冲激光辐照有机硅烷-烷氧基:硅烷或-硅氧烷

摘要

Prodn. of thin Si-contg. organic layers on a substrate from the gas phase involves the photochemical reaction of organo-silanes, -alkoxysilanes or -siloxanes (I) in an inert atmos. under reduced pressure, by irradiation with one or more pulses of pulsed laser light with wavelength below 400 nm, pulse length 10 ps-1 ms, pulse frequency 1-300 Hz and mean energy density at least 1 ml/cm2. (I) are silanes of formula (R')nSiRa-n (with R = H, Me, vinyl or -(CH2)aX (with X = OH, NH2, COOH or glycidyll; R' = Ph; n = 1, 2 or 3), alkoxysilanes of formula (R')nSi(OR) 4 contg. at least one Ph gp. (with R = Me, Et or Ph; R' = H, Me, Et, vinyl, Ph or -(CHH2) = X (with X as above); n -1, 2 or 3) or siloxanes of formula R'R=SiO-(SiR2O)m -(SiRR'O)n-SiR2R' (with R = Me; R' = Me or Ph; n, m = O or above); reaction is carried out in argon at below 10 mbar, using pulsed laser light of wavelength 190-300 nm, in a direction mainly parallel to the substrate, pref. through a mask. USE/ADVANTAGE - The thin layers obtd. are useful as membrane layers for sensor technology (claimed). Provides a LCVD process for the prodn. of smooth, thin, transparnet, colourless Si-contg. layers without using sensitisers (contrast prior-art liq.-phase processes which give thick layers and require spin-coating, and gas-base processes which require sensitisers such as Hg and give brownish, semi-transparent coatings). Other applications inlcude surface coatings for implantable electrodes, dielectric layers for semiconductor components. etc
机译:产品薄硅连续。来自气相的基材上的有机层涉及惰性气氛中有机硅烷,-烷氧基硅烷或-硅氧烷(I)的光化学反应。在减压下,通过照射波长小于400 nm,脉冲长度10 ps-1 ms,脉冲频率1-300 Hz和平均能量密度至少1 ml / cm2的一个或多个脉冲激光进行照射。 (I)是式(R')nSiRa-n(R = H,Me,乙烯基或-(CH2)aX(X = OH,NH2,COOH或缩水甘油基; R'= Ph; n = 1, 2或3)中,式(R')nSi(OR)4的烷氧基硅烷至少包含一个Ph gp。(其中R = Me,Et或Ph; R'= H,Me,Et,乙烯基,Ph或-( CHH 2)= X(X为上述基团); n -1、2或3)或式为R'R = SiO-(SiR2O)m-(SiRR'O)n-SiR2R'的硅氧烷(R = Me; R '= Me或Ph; n,m = O或更高);在小于10 mbar的氩气中,使用波长为190-300 nm的脉冲激光,在基本上平行于基板的方向上进行反应,优选通过面膜用途/优点-薄的薄层可用作传感器技术的膜层(已声明),为不使用敏化剂的光滑,薄,透明,无色的硅接触层提供了LCVD工艺(对比之前现有技术的液相工艺,该工艺可形成厚层并需要旋涂,而气基工艺则需要使用诸如汞的敏化剂并获得褐色,半透明的涂层s)。其他应用包括可植入电极的表面涂层,半导体组件的介电层。等等

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