Hello, Im a student and at the moment I am working for my Diploma thesis about photoresists. Could you tell me please something about application of PGMEA (CAS.Nr. 106856) in lithography? Could you tell me, the advantages and disadvantages of this product, compared to Acetone or NMP? I heard if you use Acetone instead PGMEA as Edge bead remover, Acetone would not remain at the edge and would damage the desired photoresist film. Could you tell me, in this case how much is the loss of chips? To which extent would acetone decrease the yield of chips? Thank you very much With best regards -- NEU: Bis zu 10 GB Speicher für e-mails & Dateien! 1 GB bereits bei GMX FreeMail http://www.gmx.net/de/go/mail