===Single-layer resist=== //(updated 02-01-2010)// *5 min prebake 115°C *spin S1813 photoresist at 4000 rpm for 30 sec *3 min bake 115°C (microchem says this is too long) *6 sec exposure * Quartz exposure: Place a dummy SiO2 substrate upside down (rough side up) with the quartz on top in the contact aligner. The Si layer underneath the quartz will help simulate SiO2 chip conditions. *40 sec develop *developer solution: 4 parts DI H20, 1 part MF-351 developer ===Bilayer Resist === //(updated 02-09-2009)// *5 min prebake 115°C *spin LOR3B photoresist at 2500 rpm for 45 sec * Deposits ~350 nm of photoresist (according to LOR3B documentation) *2 min bake 190°C *spin S1813 photoresist at 4000 rpm for 30 sec *2 min bake 115°C *5 sec exposure *20 sec develop * Developing solution: Shipley Mircoposit CD-26 * No agitation *10 sec DI H2O bath * No agitation *deposit 35nm metal *remove underlayer with mircoposit 1165 (located in Weniger 306 lab) * Put chips in 70°C remover for ~15 min * Transfer to fresh 70°C remover for ~20 min * Transfer to fresh 70°C remover for ~25 min *rinse with acetone, IPA then blow dry