I'd like to order undoped and some 3", N(100), resistivity>5 Ohm-cm, 200um thick silicon wafers. Please let me know how to order and make a payment. I hope to hear from you soon. Thanks in advance, Best regards, Jong-Hwan Yoon Prof. of Physics Kangwon National University Chunchon, Kangwon-do 200-701 KOREA Fax : 82-361-57-9689 Phone : 82-361-250-8466