In my experience, the only problems observed with this
cleaning method is getting a cleaning solution that will not leave a
nasty residue.  If rinsed and dried properly, we have no defects.

                Cobey Schmidt
                VisionTek
                1175 lakeside Drive
                Gurnee, IL 60031
                [log in to unmask]
<mailto:[log in to unmask]>
                (847) 360-7566 voice
                (847) 360-7443 fax

                                -----Original Message-----
                                From:   Modular Components National,
Inc. [SMTP:[log in to unmask]]
                                Sent:   Wednesday, June 17, 1998 9:19 AM
                                To:     [log in to unmask]
                                Subject:        [TN] Ultrasonic cleaning

                        To all:
                                Are there any negative effects to using
ultrasonic cleaning on nickel/gold
                        plating?
                                My reason for asking is this.  We
recently plated two panels and tape
                        tested them prior to ultrasonic cleaning.  Then
after ultrasonic cleaning
                        and during our final machining process, we
experienced poor gold to nickel
                        adhesion.
                                Any input would be greatly appreciated.
                        Regards
                        Ryan
                        Modular Components National, Inc.
                        2302 Industry Court
                        Forest Hill, MD 2150
                        PH (410) 879-6553
                        Fax (410) 838-7629


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