Electronics Forum | Wed Nov 17 11:51:24 EST 2010 | vetteboy86
We have a problem child part. Our company was in a pinch and ordered parts from a broker that had an old date code. The leads are very oxidized, and our reflow process is comprimised. To prove the concept, we cleaned the leads with Tarn X and an aci
Electronics Forum | Fri Jan 07 09:23:16 EST 2011 | ercdave1
I removed the front cover of the controller box and found a cable secured to the right plate with cable ties but no floppy. the cable has a 50 pin connector. maybe is an option on your machine that my didnt get. I hope tom has better luck. I am goin
Electronics Forum | Fri Jan 28 13:34:18 EST 2011 | rodrigo
Hi all, I just finished programming a board in this AOI machine and I'm getting the same IC rejected in every board with this error: Inspection window out of frame range. I don't know how to fix this because the frames get generated automatically
Electronics Forum | Tue Mar 01 11:19:47 EST 2011 | jeddmartens
I have no knowledge into PCB designing with surface mount components, all my experience has been with through hole components. I now have to design PCBs using surface mount parts. I have a few questions I was hoping someone could answer. Can a PCB w
Electronics Forum | Wed Apr 06 04:18:03 EDT 2011 | emmanueldavid
TK, Hope you got it right only for this round of assemblies. Well, passing through a Reflow belt is not an ultimate process to dry circuit cards & take out moisture from Solder finished layers. First of all, if the packs were not unsealed (even s
Electronics Forum | Mon Jun 13 18:47:56 EDT 2011 | kahrpr
Cracked parts close to the edge on pizza cutters are a common problem. There are a lot of stresses on the board as the blade cuts through the board. Raising the blade height so that the boards are not cut clean through will help. You will have to fi
Electronics Forum | Tue Aug 23 16:48:29 EDT 2011 | jax
assuming Sn05Pb93.5Ag1.5 Without knowing what you are trying to solder, PTH or SMT, the time might not be that far off. Does that time include stripping, cleaning, plating the leads prior to soldering onto the board?... pre-tinning the board as well
Electronics Forum | Mon Nov 14 00:13:55 EST 2011 | tpappano
Hi Jeff, I pulled the proms from both machines, copied to disk, re-burned the the old versions with the newer and reinstalled. The ram became scrambled in the upgraded unit on startup, but I did a full restore through the serial port and unit #2 got
Electronics Forum | Fri Jan 06 13:47:15 EST 2012 | davef
Your starting [and finishing] point should be IPC-7351B Land Pattern Calculator and Tools - http://landpatterns.ipc.org/default.asp For more, look here: * http://www.smtnet.com/bob-willis/pbdai.html * http://www.onboard-technology.com/pdf_novembre
Electronics Forum | Thu May 31 21:45:48 EDT 2012 | davef
rsthompson ... if you're talking about bare boards IPC-5701, Users Guide for Cleanliness of Unpopulated PBC, Table 8 ||Bare board final surface finish Ions||Hot air solder level||OSP over copper||Gold over nickel Chloride||0.75 ug/cm^2||0.75 ug/cm^2
.gif)
