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    • 14. 发明授权
    • Method for thermal processing a semiconductor wafer
    • 半导体晶片热处理方法
    • US07393797B2
    • 2008-07-01
    • US11463302
    • 2006-08-08
    • Tsung-Hsun Tsai
    • Tsung-Hsun Tsai
    • H01L21/324
    • H01L21/67109H01L21/67115H01L21/67248
    • A method for thermal processing a semiconductor wafer is disclosed. A rapid thermal processing (RTP) chamber encompasses a heating means, a rotation means, and a cooling system for cooling walls of said RTP chamber. A semiconductor wafer is loaded into the RTP chamber just being cooling down to a first temperature by using the cooling system. When loading the semiconductor wafer, it has a temperature that is lower than the first temperature, thereby causing a tendency of particle deposition from the walls of the RTP chamber onto the semiconductor wafer. The semiconductor wafer is pre-heated to a second temperature higher than the first temperature with the heating means, thereby eliminating the tendency of particle deposition. Upon reaching the second temperature, the rotation means is activated to start to rotate the semiconductor wafer, while the semiconductor wafer being ramped up to a third temperature.
    • 公开了半导体晶片的热处理方法。 快速热处理(RTP)室包括加热装置,旋转装置和用于冷却所述RTP室的壁的冷却系统。 通过使用冷却系统将半导体晶片装载到RTP室中,正在冷却至第一温度。 当加载半导体晶片时,其温度低于第一温度,从而导致从RTP室的壁向半导体晶片上的颗粒沉积的倾向。 利用加热装置将半导体晶片预热至高于第一温度的第二温度,从而消除了颗粒沉积的倾向。 当达到第二温度时,旋转装置被启动以开始旋转半导体晶片,同时半导体晶片被斜升至第三温度。