Electronics Forum | Tue Mar 04 17:47:19 EST 2003 | msivigny
Hello EW, thanks for your input, the data collection for measurements such as these can get confusing because you're calculating deviations from set point location to actual placement location and then analyzing the full result. Then there are many o
Electronics Forum | Tue Mar 04 16:02:53 EST 2003 | Dave C.
We have auto-correct funtion on our Panasonic Create CM-301 placement machines but have never turned it on because of a perceived loss of placement time when the camera verifies placement. We look at the first article and correct placemnt if needed.
Electronics Forum | Tue Jan 04 15:28:22 EST 2005 | davef
Look here: * Circuit Board Repair and Rework Guide [ http://www.circuittechctr.com/guides/guides.shtml ] * 7711/21A - Rework and Repair Guide [ http://webvision.ipc.org/scripts/mgrqispi.dll?APPNAME=IPCWEB&PRGNAME=TOCFRAME&ARGUMENTS=-N,-N,-A,-A,-N50 ]
Electronics Forum | Mon Apr 25 22:56:44 EDT 2005 | davef
rush316 First, no one stated that PBB and/or PCBE are in FR4. FR4 contain tetra-bromo-bisphenol A [TBBA]. Second, there are classes [and grades] of dielectric materials used in fabricating printed circuit boards. Grades, NEMA LI-1. From these gr
Electronics Forum | Thu Jun 01 04:51:21 EDT 2006 | EC
Hi TS, Most of the machines will face this problem after been using few years.....I handling SMT equipments ( Fuji machine ) and process.....sorry if I have offened you...... Hi Jack, Firstly, you must able to tell which component having a high thr
Electronics Forum | Wed Dec 20 04:43:36 EST 2006 | greg york
Any decent flux would volatise off with the heat of the wave unless absorbed into the solder mask. Test this by trying to clean in alcohol or common solvent aerosol, if it does not clean then it is probably Mineral Salts from solder mask fillers. Ano
Electronics Forum | Wed Mar 04 22:57:05 EST 2009 | davef
Underfill epoxies may be classified into major groups [Capillary Underfill Manufacturing Development and Characterization for 2nd Level Electronic Interconnect Processes; B Salom�n; University of Puerto Rico, Mayaguez Campus; Dec 2004]: * Capillary.
Electronics Forum | Fri Aug 29 04:33:52 EDT 2014 | mun4o
Hi all, we have 2 smd line with 2 topaz x|| each.The machines are 10 year old.Now we need more capacity and I am looking for new line.Because there is not space for third line , we must change the p&p with more productive machines.I like Yamaha , an
Electronics Forum | Fri Apr 10 10:20:15 EDT 2020 | unisoft
Yes process engineers that work for contract manufacturers try to get the full CAD or XY rotation files from their clients unfortunately still many of their customers still give them only Gerber files for the PCB project. Unisoft has had a focus on
Electronics Forum | Fri Apr 10 10:31:47 EDT 2020 | proceng1
Certain customers do give us CAD. USUALLY ODB++ but I've also gotten .ipc and .pcb . Many of our customers bought or inherited a design, and therefore have no control to generate additional files. Or, as you mentioned, they had another manufacture
