> Help! > > We are a proto shop only working with another board shop on an R&D project > involving four (so far) different printed circuit board materials. The > substrate materials are not mixed with each other but the prepregs are a > mixture of 1080 and same style , glass/epoxy, prepregs with less resin > content. These will be ten layer boards all using 5 mil substrates. > > We use a Plasma Etch Mk II-0 plasma etcher. Would anyone have data for > etching parameters of Park/Nelco N4000-6FC, Arlon 45N, GE - Getek and > Rogers 4350B printed circuit board materials with 1080 prepregs? > > Just trying to get all available info that may exist to save time. If I > had a good baseline for each of these materials, it would help. I talked > to Arlon and they had parameters for an APS system but not for Plasma Etch > system. I have heard that different etchers behave much differently? > Therefore assume cannot use APS instructions with a Plasma Etch machine? > APS has up to 4 segments in the process and our etcher has only two. > > I have been able to get plasma recommendations for the Rogers material and > prepregs from their website. I basically need baseline parameters for the > other three materials. I need info on what gases to use along with gas > mixtures and flow rates, Rf power to apply during plasma and oxygen burn > segments (if used), time required for both segments? What is the > suggested pre-bake temperature and for how long? > > We have pretty much only used FR4 materials at our facility and don't have > much experience with other materials. We have worked with polyimide and > Kevlar and some BT Epoxies but very limited. We have used some Rogers > materials but only in double-sided applications. > > > Thanks for your time and consideration. > > Ed McAtee > Naval Surface Warfare Center > Phone: (812)854-3892 > E-mail: [log in to unmask] > Fax: (812)854-1174 > > --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d 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 delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------