While considering different solutions for wafer cleaning, I came across the CO2 snow blast method. Some vendors offer manual or completely automatic wafer handling systems that clean wafers using the CO2 snow blasting. I would very much like to hear form anyone who have had some experience with these methods. Thanks in advance, Steen Weichel. ____________________________________________________ Packaging Engineer - Integrated Optics, Ph.D. Steen Weichel ADC Denmark ApS | Ryttermarken 15-21 | 3520 Farum Local phone: +45 4434 7070 | Mobile phone: +45 4051 0862 Fax: +45 4434 7001 | Web: http://www.ibsen.dk E-mail: Steen_Weichel@adc.com | Steen.Weichel@ibsen.dk