利用反向補償原理控制硅CVD外延層中的金屬雜質(zhì)和微缺陷
CONTROLLING METALLIC IMPURITY AND MICRODEFECT IN SILICON CVD EPITAXY LAYER USING CONTRARY COMPENSATION
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摘要: 本文分析了硅CVD外延生長中金屬雜質(zhì)沾污、吸附-解吸機理模型和微缺分布規(guī)律,提出了用反向補償原理優(yōu)化外延工藝,有效地解決了硅外延層的金屬雜質(zhì)和微缺陷。
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關(guān)鍵詞:
- 硅; CVD; 外延; 金屬雜質(zhì); 微缺陷; 反向補償
Abstract: This paper analyzes the mechanism models of metallic impurity infection and adsorption-desorption, and the distribution law of microdefect in growing of silicon CVD epitaxy, and then a new epitaxy technology is proposed, which is optimized by using contrary compensation, and by which the metallic impurity and microdefect in silicon epitaxy layer are reduced effectively. -
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