RCA Clean / LPC Single Wafer Clean

RCA Clean (SC1-SC2)

Process StepsProcess FlowProcess Details
1RCA CleanSC1 + SC2 @ 50C for 20' (each bath)
2Rinse/SRDDI H2O for 20'; Standard SRD
3Visual Inspection100% Visual

RCA

  • SC1 chemical Ratio:  40:1:1
  • DI Water (40 Parts), Hydrogen Peroxide (1 Part), Ammonia Hydroxide (1 Part)
  • SC2 Chemical Ratio:  160:4:1
  • DI Water (160 Parts), Hydrogen Peroxide (4 Parts), Hydrochloric (1 Part)

LPC Single Wafer Clean

Process StepsProcess FlowProcess Details
Single WaferLPC Clean80:2:1 DI Water 80 Parts
1Hydrogen Peroxide 2 Parts
2Spin dryAmmonia Hydroxide 1 Part
Inspect Wafer

RCA

Above process for Non-Patterned Wafers.

Patterned wafers require a technical review of the feature size, films prior to accepting material.

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Precision Cleaning