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    • 2. 发明授权
    • Semiconductor device applied to composite insulative film manufacturing method thereof
    • 半导体装置应用于复合绝缘膜的制造方法
    • US06171977B2
    • 2001-01-09
    • US08777098
    • 1996-12-30
    • Yoshio KasaiTakashi SuzukiTakanori TsudaYuuichi MikataHiroshi AkahoriAkihito Yamamoto
    • Yoshio KasaiTakashi SuzukiTakanori TsudaYuuichi MikataHiroshi AkahoriAkihito Yamamoto
    • H01L2131
    • H01L29/66181H01L21/28167H01L21/3185
    • A semiconductor wafer having an impurity diffusion layer formed in an inner surface of a trench is cleaned. The semiconductor wafer is inserted into a furnace, and NH3 gas is introduced into the furnace in the low-pressure condition to create an atmosphere in which the temperature is set at 800° C. to 1200° C. and the partial pressures of H2O and O2 are set at 1×10−4 Torr or less. A natural oxide film formed on the inner surface of the trench is removed, and substantially at the same time, a thermal nitride film is formed on the impurity diffusion layer. Then, a CVD silicon nitride film is formed on the thermal nitride film without exposing the thermal nitride film to the outside air in the same furnace. Next, a silicon oxide film is formed on the CVD nitride film. As a result, a composite insulative film formed of the thermal nitride film, CVD silicon nitride film and silicon oxide film is obtained. Then, an electrode for the composite insulative film is formed in the trench.
    • 清洁在沟槽的内表面形成有杂质扩散层的半导体晶片。 将半导体晶片插入炉中,并将NH 3气体在低压条件下引入炉中以产生温度设定在800℃至1200℃的气氛,并且将H 2 O和 O2设定在1×10-4乇或更低。 去除形成在沟槽内表面上的自然氧化膜,并且基本上同时在杂质扩散层上形成氮化氮膜。 然后,在氮化硅膜上形成CVD氮化硅膜,而不会在同一炉内将氮化氮膜暴露于外部空气。 接着,在CVD氮化膜上形成氧化硅膜。 结果,得到由氮化物膜,CVD氮化硅膜和氧化硅膜形成的复合绝缘膜。 然后,在沟槽中形成用于复合绝缘膜的电极。
    • 5. 发明授权
    • Cleaning method for a semiconductor device manufacturing apparatus
    • 半导体装置制造装置的清洗方法
    • US06989281B2
    • 2006-01-24
    • US10957609
    • 2004-10-05
    • Akihito YamamotoTakashi NakaoYuuichi MikataYoshitaka Tsunashima
    • Akihito YamamotoTakashi NakaoYuuichi MikataYoshitaka Tsunashima
    • H01L21/00
    • H01L21/67253
    • A cleaning method for a semiconductor device manufacturing apparatus includes a process of forming a film on a subject piece in a processing chamber, applying light having a predetermined wavelength to a monitoring section to indirectly monitor a thickness of a film formed on the subject piece, introducing cleaning gas capable of removing a substance deposited on the monitoring section into the processing chamber, measuring a reflection light which is the application light reflected near the monitoring section, measuring an amount of a substance corresponding to a thickness of a film deposited on the monitoring section based on a measurement result of the reflection light; and introducing, into the processing chamber, a cleaning gas which can remove the substance on the monitoring section until a measurement value of the amount of the substance on the monitoring section becomes zero.
    • 半导体器件制造装置的清洁方法包括在处理室中的被检体上形成膜的处理,将具有预定波长的光施加到监视部分,以间接监视形成在被检体上的膜的厚度,引入 清除气体,其能够将沉积在监测部分上的物质去除到处理室中,测量作为在监测部分附近反射的应用光的反射光,测量与沉积在监测部分上的膜的厚度相对应的物质的量 基于反射光的测量结果; 并且在所述处理室内引入能够去除所述监测部件上的物质直到所述监测部件上的物质的量的测量值变为零的清洁气体。