Results testing AutoStain machine

Research topics:

• Effect of light vs no light
• Optimal staining times
• Effects on solution changes
• Effects on removing metals / barriers
• Effects of over-staining
• Which chips are harder to stain correctly
• Effects of HF concentration / etchent (ex whink vs 20% HF)
• TODO: standardize fiber / chip positioning
  • Make a bracket to guide / hold fiber?

Baseline Sharp SM4 as these are relatively plentiful and are known to be very easy to stain (ie wide margin of error for experiments)

Images	Chip	Sample	Process	Notes
	Nintendo 6102 (Sharp SM4)	2020-08-11 S1	Etch RG 2 hour (no changes) ~80F	TLDR: test was mostly invalidated due to preparation error * Staining visible * Crystals present Tried to use less grease to hold sample. Resulted in sample flying off during final wash. I didn't have time to fish it out and it stayed in the drain tube for some hours. When I fished it out waste acid had etched it, probably resulting in the half eaten ROM Corrections: * Use more grease * Position sample holder to slightly block drain * Budget cleanup time for important chips
	Nintendo 6102 (Sharp SM4)	2020-08-11 S1	Stain 60 sec Light: full single fiber ~80F	Overstained, possibly due to error in step 1
	Nintendo 6102 (Sharp SM4)	2020-08-11 S2	Etch RG 1 hour (no changes) ~80F	* No staining visible * Poly stringers everywhere * Metal present * No crystals