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Specific Process Knowledge/Etch/Wet Gold Etch: Difference between revisions

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# Iodine etch: KI:I<sub>2</sub>:H<sub>2</sub>O - 100g:25g:500ml - standard at Danchip. Can be used with AZ resist as mask.
# Iodine etch: KI:I<sub>2</sub>:H<sub>2</sub>O - 100g:25g:500ml - standard at Danchip. Can be used with AZ resist as mask.
# Aqua Regia (Kongevand): HNO<sub>3</sub>:HCl - 1:3 - A very strong acid witch will etch most metals and are therefore used when you wish to remove all the gold from your wafer. '''you have to be very carefull when you work with Aqua Regia (Kongevand) It can generate nitrous gases witch are very toxic!!'''
# Aqua Regia (Kongevand): HNO<sub>3</sub>:HCl - 1:3 - A very strong acid which will etch most metals and are therefore used when you wish to remove all the gold from your wafer. '''you have to be very carefull when you work with Aqua Regia (Kongevand) It can generate nitrous gases witch are very toxic!!'''




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