Thaum nws cov phev mus rau kev lag luam xov xwm, kev nkag siab txog kev nthuav dav ntawm semiconductor fabrication yog qhov tsim nyog. semiconductor wafer yog qhov tseem ceeb hauv kev lag luam no, tab sis lawv feem ntau ntsib kev sib kis los ntawm ntau yam impurity. Cov kab mob no muaj xws li atom, organic teeb meem, metallic element ion, a ...
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