This Tuesday and last all of the RETs had time in the clean room! Below you see Valerie and I in our bunny suits. We have to wear these to protect the products we are making and using in the cleanroom. With the suits on it is very unlikely any skin or hair or other debris will fall from our bodies onto what we are working with!
We are taking the large silicon wafers seen below and eventually turning them into chips with some Prep school spirit on them!
The schematic to the right explains what we have done to the wafer. Read the schematic top down. First we applied photoresist. Then we placed a mask (essentially a stencil with my Prep pride) on the wafer and irradiated it with UV light. The light broke down the photoresist that was not blocked by the stencil, thus putting my design onto the wafer. The next week we did deposition (the machine below does this step). In deposition we deposit titanium and then gold on top of our wafer. This seems to wipe out our design but after a dip in an acetone bath and shaker, the gold brushes off the unexposed area - leaving our original design. 
Next week you will see the final product - for now I need to go back to analyzing data in MatLab. 
No comments:
Post a Comment