The following is a list of equipment where 4 inch round substrates are allowed.
non contact 3D optical profiling
Direct Write
Resist will be removed
Spray coating of resists
N and P doping available- intrinsic to 5E19 Operating pressure range is 5-300Torr
Manual wet etching of non-standard materials using acids or bases. Hot Plate available. GaAs not allowed.
Automatic Resist spinning and bake
3 Probe Heads for different cleanliness groups.
To maintain cleanliness level, cleans of both the chamber and wafers are required prior to processing -
Substrates in clean category: Pre-Diffusion Clean
For semi-clean substrates: Standard Metal Clean (SRS100 + PRS1000) . Run Chamber clean (no dummies) and conditioning with clean dummies prior to run
Manual solvent cleaning of substrates or resist removal.
Pieces need a carrier wafer; Isotropic Etching
reactive O2/N2 sputtering, substrate bias, substrate heating, co-sputter
To maintain cleanliness level there are cleans required for both the chamber and wafers prior to processing -