Specific Process Knowledge/Wafer cleaning/RCA: Difference between revisions
New page: The RCA clean is used for cleaning the wafers before taking them into the furnaces. It consist of two solutions: RCA1 and RCA2 The RCA1 contains H2O, NH4OH and H2O2 (5:1:1). It is used fo... |
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The RCA clean is used for cleaning the wafers before taking them into the furnaces. | The RCA clean is used for cleaning the wafers before taking them into the furnaces and a few other equipments (check the cross contamination sheet). | ||
It consist of two solutions: RCA1 and RCA2 | It consist of two solutions: RCA1 and RCA2 | ||
Revision as of 10:03, 21 February 2008
The RCA clean is used for cleaning the wafers before taking them into the furnaces and a few other equipments (check the cross contamination sheet). It consist of two solutions: RCA1 and RCA2
The RCA1 contains H2O, NH4OH and H2O2 (5:1:1). It is used for removed of light organics, partiticles and metal.
The RCA2 cantains H20, HCl and H2O2 (5:1:1). It is used for removel of heavy metals, alkalis and metal hydroxides.