Step 1. Initial oxidation

 

Note: Include 2 dummies for PM etch characterization

 

Step

 

Process

Date

Operator

 

Step 1.1

 

TLC clean Tysar2     2TLCA

2hrs of cleaning

05/01/07

Pongracz

 

Step 1.2

 

Std. clean wafers in Sink 6

Piranha, 1/25 HF dip

 

Step 1.3

 

 

Dry oxidation in Tystar2, 2DRYOXA

Target = 250 A

950oC, 30 min, N2 annealing 20 min

 

 

Step 1.4

 

 

Measure oxide thickness with Nanospec: 200A