Olgierd- Perhaps wafer dicing tapes leave fewer residues? Try some of the dicing tape suppliers and see what they say. Michael Alderete Mechanical Packaging Engineer DRS Sensors & Targeting Systems, Inc. 10600 Valley View St. Cypress CA 90630-4833 michael.alderete@drs-sts.com TEL (714) 220-4410 FAX (714) 220-5583 -----Original Message----- Date: Wed, 19 Mar 2008 18:57:01 +0100 From: "Olgierd Cybulski"Subject: Re: [mems-talk] removing sticky adhesive To: vikrant.c@iitb.ac.in, "General MEMS discussion" Message-ID: <83cd18950803191057y31bd87f2p67ae79b4bcb20301@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 > is there a way to remove sticky adhesive, which is left over after a > cellotape is removed. we are using cello tape for masking while etching > SiN, and when cellotape is peeled of the sticky glue is left over. Is there > a better way to remove it with out scrubbing? It depends on the type of glue. Try IPA, extraction naphtha or benzine. Sometimes acetone is enough.