This is for "research". We are fabricating micro coils on silicon and glass wafers. Basically, evaporate gold, then spin-on PDMS (photoresist), then pattern it - say, 100micron long 10 micron wide trenches. And then plate these trenches with (trying different materials. maybe will be something else in the end): 1. copper 2. nickel 3. cobalt 4. cobalt alloys these are all 2" wafers - will never go bigger than that. Adhesion is important. if you ask me, very important. but not necessarily at this stage. right now I am just trying to understand what the heck am I doing :-) Lifetime? Few days will do it for now. Theoretically, in the end I will coat whatever I will make with Teflon so lifetime will be as good as adhesion. Thanks a million. By the way, right now I'm talking to TekNu for a wave-sequencing power supply, Atotech for chemicals (acid-copper plating solution for now), and I'll make my plating cell out of a 100ml beaker. Does that make sense? I'm looking for a link of the type "electroplating for dummies" or "learn how to electroplate in 15 minutes" :-) I have a test power supply that will be in my hands in exactly 2 weeks and I need to have everything ready by then. I need to have some (but little is enough) understanding what I am doing. Thank you very much!!! ------------------ Greg Fridman School of Biomedical Engineering, Science & Health Systems BioApplications Group, Drexel Plasma Institute, Drexel University Office: 215-895-0576 Cell: 312-371-7947 Home: 215-387-3161 AIM: zegogga MSN: [log in to unmask] -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Joe Fjelstad Sent: Thursday, October 23, 2003 4:15 PM To: [log in to unmask] Subject: Re: [TN] electroplating newbie Hello Gregory, There are a number of potential solutions but you need to answer a few questions before a good answer can be arrived at. How big is your part? What is/are the material(s) you wish to plate? How thick? How important is adhesion? What is the use environment? What lifetime do you expect? Kind regards, Joe --------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 -----------------------------------------------------