Electronics Forum | Tue Jul 06 19:45:03 EDT 2004 | ANDREW
Based on the attchment it looks like both are low profile and cater for high IO point.What are the challenges in running this 2 type of component?Is there any additional process required other than normal SMT for these 2 packages,like underfill ?
Electronics Forum | Wed Dec 22 08:49:55 EST 2004 | markhoch
I'm looking for some data to support my argument that HASL boards are not the most ideal boards for manufacturing involving BGA's and 0402's. I'm sure one of you SMT Gurus out there can point me in the right direction! Thank you in advance!
Electronics Forum | Thu May 13 16:55:51 EDT 2021 | emeto
With Pb-Free HASL you can't use Pb process for sure as the melting point of tin is so much higher than the lead paste process. SAC305 is the most popular compound, unless your assembly requires something else for a specific reason.
Electronics Forum | Wed May 03 20:24:22 EDT 2000 | Dave F
MF: I know of nothing that addresses your question directly. Let me suggest: * Technical types at your solder supplier should be able to help. * "Effect Of Intermetallic Compounds On The Thermal Fatigue Of Surface Mount Solder Joints" PL Tu, et a
Electronics Forum | Wed May 25 17:58:07 EDT 2011 | rssimmons
The SimmScope is a first article inspection system that uses an overhead digital microsope on a motorized gantry to inspect the board - much like an AOI - except that it does not automatically make the pass/fail decisions. It is up to the operator to
Electronics Forum | Sun Jul 14 05:37:17 EDT 2002 | johnw
Hi all bga placcement on an ip2 can is possible although as pointed out the x/y dimensionsof the part are used for placement I would suggest you arrange for your parts to be taped and reeled as this is the prefered way to go what size are the bga,s
Electronics Forum | Sat May 08 18:44:55 EDT 2004 | Grant Petty
Hi, That's an interesting point to consider, and I will check Phillips get more info. The Fuji machines do have some nice ideas in them, however they are a bit untested here, and no one I know is operating one, so that's why I hope someone is online
Electronics Forum | Thu Jun 24 23:57:42 EDT 2004 | George
Could anyone tell me the difference in PCB material Nelco13 and FR4? PCB dielectric material Nelco13 is quite new for me and I knew nothing about it. For imcoming quality control (IQC), I am asked to identify PCB made of FR4 and Nelco13. How to do th
Electronics Forum | Wed Feb 01 16:59:43 EST 2006 | Chunks
Hi Darnell! How's it hangin bra. Good point about the cartridges. I think "the man" invented them. Anyway, you can still scoop the excess into an empty container..... Most paste companies will take your old paste back for free too. Aw-ight, w
Electronics Forum | Thu Aug 21 19:18:47 EDT 2008 | duchoang
My steps are different in that case: 1- Check mounts. Try to adjust origin point until get the pretty good mount positions. 2- Teach fiducials ( Board fids, not panel fids) 3- Use fids, check mount again. 4- If OK, then teach Block Repeat. This alwas
