From jgarate at snf.stanford.edu Fri Jan 19 12:15:29 2001 From: jgarate at snf.stanford.edu (Jaime Garate) Date: Fri, 19 Jan 2001 12:15:29 -0800 Subject: Nanostrip Message-ID: <3A68A061.E306EC4A@snf.stanford.edu> Hi Users, I have pour fresh nanostrip into the hot pot, and also Ray has work on the temperature problem. If any issues please feel free to email me. Thanks, Jaime Garate From beckwith at snf.stanford.edu Wed Jan 24 16:11:02 2001 From: beckwith at snf.stanford.edu (Sharleen Beckwith) Date: Wed, 24 Jan 2001 16:11:02 -0800 (PST) Subject: user problems at wbnonmetal Message-ID: Folks: Over the past two weeks I have noticed the following user problems: 1. Buffered HF drips on the deck (how can I tell it is buffered HF? It is those white crystals you see on the deck, and all over the two buffered HF tanks). PLEASE clean up after yourselves! If you need instructions on this see Jaime. 2. At this very moment the 6:1 HF tank has clean room paper in it. Someone left loose paper sitting on the deck. PLEASE do NOT do this on ANY wet bench deck. The exhaust will suck the paper to the back of the bench. The paper will either end up in one of the acid baths (as happened today), or worse, it will get sucked into the duct work. 3. Cover the HF tanks when you are finished using them. If you drip HF anywhere clean it up! 4. The H2SO4:H2O2 hot pot has clumps of resist floating around in it. If you removed your wafers from this hot pot your wafers are NOT clean. I hope you did NOT take them to wbdiff! If the sulfuric bath does not turn clear you do not have enough H2O2 in it. Add some. Again, need help? Ask Jaime. 5. The left dump rinser still does not spray. Please remove your cassette handles and put them in the bottom of the dump rinser. Then press START. Don't leave handles with acid on them for someone else to pick up. 6. When you use the DUMP DOOR to empty the dump rinsers make sure you press the button again to refill the dump rinsers with DI water. I keep finding the dump rinsers empty. Empty dump rinsers enhance the possiblity of contamination in the dump rinser. We all have to work here, some of us need to keep our wafers uncontaminated, please keep the bench uncontaminated and clean. Thanks. Sharleen