Electronics Forum | Tue Jan 30 12:21:49 EST 2007 | cyber_wolf
Rob, I have talked about this on the forums before. I have since then gained much more experience on this issue. Some things to look at : 1. The X/Y/Z table must be indicated flat. (See the Fuji manual for specs.) 2. Your Z-origin must be correct.
Electronics Forum | Tue Jan 30 08:21:02 EST 2007 | GS
Please who can help me? I am looking for fiducial (cross shape) mark (target mark? Swiss mark?..)specifications used when COB wire bonding on PCB laminate. Pad pitch should be 250umm may be 220umm?). Mainly need to know which are the tolerances
Electronics Forum | Tue Jan 30 20:47:32 EST 2007 | davef
Inspection criteria [B Willis] Solder-paste application * Fine-pitch printing Satisfactory solder-paste should: ** Be aligned with all pads ** Conform to the stencil's pad-aperture size ** Have a smooth, flat void-free surface Acceptable solder paste
Electronics Forum | Thu Feb 01 02:36:40 EST 2007 | bvdb
Hi pr, The problem was happening on all three of the nozzles that we were using, about half the time the Z axis would rise up and go for the next nozzle and the other half it would stop almost as soon as it released the nozzle. When I inch the Z ax
Electronics Forum | Fri Feb 02 10:24:50 EST 2007 | FredC
Daxman, Have you eliminated nozzle variation? The difference between a new and used CP6 nozzle can be .15mm. On a CP4 I would think it could be more. On new Cp4 nozzles the difference in effective nozzle length should not be more than .04mm. You can
Electronics Forum | Mon Feb 05 10:21:21 EST 2007 | davef
Thermal conductivity [W/m-�C] * Silver: 418 * Aluminum: 403 * Copper [rolled annealed]: 392 * Copper [electrodeposited]: 392 * Gold: 297 * Nickel: 90.7 * Tin: 73 * SAC: 73 * Castin: 57 * Pb37Sn63: 51 * Lead: 35 * Epoxy, phenolic: 25-75 * Conformal co
Electronics Forum | Tue Feb 06 13:24:31 EST 2007 | stepheniii
Good afternoon, > > You have to use lead paste > since none-RoHS components won�t withstand > elevated temperatures. Solder paste manufacturers > offer a lot of transitional pastes designed > specially for mixed process. Ask your paste > suppli
Electronics Forum | Tue Feb 13 13:49:57 EST 2007 | coop
I am talking about an internal tray holder It holds two trays. the lingo doesn't really matter because if you say Internal tray feeder/holder the guys at philips will know exactly what you're talking about. I checked several refurb places and the onl
Electronics Forum | Wed Feb 07 07:45:50 EST 2007 | jax
Water soluble residues probably won't cause instant failures. The failures are most likely caused by excess paste being deposited on the center pad of the QFN. The excess solder keeps the part from sitting down in reflow and increases the possibility
Electronics Forum | Wed Feb 07 10:36:33 EST 2007 | mk
Wow JAX. Way off buddy, I promise!!!! This is real as have all my posts. As an officer of the SMTA Atlanta Chapter for the second term, I am familiar with the Forum Etiquette.. Thanks for defending our site's honor JAX. I don't like people who ab
Nordson Electronics Solutions makes reliable electronics an everyday reality. Our ASYMTEK, MARCH, and SELECT brands deliver precision fluid dispensing, conformal coating, plasma treatment and selective soldering equipment.
2747 Loker Ave West
Carlsbad, USA
Phone: 18002796835