On 10/6/07, Sadhana Patilwrote: Thank you Ed for your help. I was suspecting my oven bake is causing the problem...because of trapping the gases below resist...but wasn't sure. So your point #2 seems to be my answer. In this part you mentioned that there could be too much or too less baking (hope I understant it right). So do you mean too less will cause threadlike structures and too much will cause uneven resist thickness all over? ~Sadhana