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    • 8. 发明申请
    • METHOD AND APPARATUS FOR CONTROLLING THE RADIAL TEMPERATURE GRADIENT OF A WAFER WHILE RAMPING THE WAFER TEMPERATURE
    • 用于控制波浪辐射温度梯度温度梯度的方法和装置
    • WO9957751A3
    • 2000-04-06
    • PCT/US9907990
    • 1999-04-12
    • APPLIED MATERIALS INC
    • ANDERSON ROGER NCARLSON DAVID K
    • H01L21/205H01L21/00H01L21/26A21B2/00
    • H01L21/67248H01L21/67115
    • A method and apparatus for controlling the radial temperature gradients of a wafer (106) and a susceptor (102) while ramping the temperature of the wafer and susceptor using a first heat source (112) that is primarily directed at a central portion of the wafer, a second heat source (116) that is primarily directed at an outer portion of the wafer, a third heat source (122) that is primarily directed at a central portion of the susceptor, and a fourth heat source (126) that is primarily directed at an outer portion of the susceptor. Ramping of the wafer and susceptor temperature is accomplished by applying power to the first, second, third and fourth heat sources. During ramping, the ratio of the first and second heat source powers is varied as a function of the wafer temperature and the ratio of the third and fourth heat source powers is varied as a function of the susceptor temperature.
    • 一种用于控制晶片(106)和基座(102)的径向温度梯度的方法和装置,同时使用主要针对晶片的中心部分的第一热源(112)来斜升晶片和基座的温度 ,主要指向晶片外部的第二热源(116),主要指向所述基座的中心部分的第三热源(122)和主要位于所述基座的中心部分的第四热源(126) 指向基座的外部。 通过向第一,第二,第三和第四热源施加电力来实现晶片和基座温度的斜坡化。 在斜坡期间,第一和第二热源功率的比率作为晶片温度的函数而变化,并且第三和第四热源功率的比值作为基座温度的函数而变化。