STS ASPECT Cluster Etcher
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STS dual chamber ICP cluster etcher (200mm) configured for Bosch
process.
Both chambers are identical in configuration with gases and
corresponding MFC sizes, as shown below:

 C4F8       400 sccm
 SF6          600 sccm
 O2            100 sccm
 Ar                50 sccm
 CF4            50 sccm
 CHF3       100 sccm
 HBr           200 sccm
 BCl3         100 sccm
 Cl2            200 sccm
 He             100 sccm
 N2             100 sccm
 N2             200 sccm