Electronics Forum | Wed Oct 20 16:55:26 EDT 1999 | NickMata
Hello all, I am trying to get some information on ENTEK CU56. I am planning to use 310M flux on ENTEK 56 cards. It will not be a double reflow (top/bottom) followed by wave. I plan to reflow, glue/cure then wave. I am concerned about burning off the
Electronics Forum | Tue Mar 11 04:17:39 EST 2003 | emeto
Ok. The best ways: 1.Wave A.Secondary side(SMD only)with glue. B.Primary side (smd+TH) c.Wave both sides(or wave and reflow) 2.If you can't solder the primary side or you don't use dispenser use classic way with reflow and trough hole at the end of
Electronics Forum | Thu Jul 14 11:52:16 EDT 2005 | davef
Sure you can use SPC charting on the wave setup parameters to warn of impending problems. Examples of useful points of analysis are: * Dwell * Temperature * Pot analysis Certainly there's a range of other process controls that could be monitored.
Electronics Forum | Mon Dec 26 10:45:40 EST 2005 | davef
+85*C. * Wave solder preheats are >100*C just prior to entering the wave * Temperature changes between exiting the chip wave and the laminar wave can swing through >100*C * Do not exceed 3*C per second maximum rate of change in temperature. Generall
Electronics Forum | Tue Sep 08 10:19:27 EDT 2009 | grics
Good Morning! I need some clarification. Our company is working with a start up company on some prototypes. On the bottom of the assembly they are placing a SOT23-5 component. It is being presented to the wave so the lead banks are parallel to the
Electronics Forum | Tue Feb 17 01:53:51 EST 2015 | vb7007
Hi all, We got a customer wanted us to run a PCB which is (Rigid+Flex), to be specific its looks like [T], T's leg is Flex and Top is Rigid. We have 8 TH parts and wanted to run PCBs through wave, but without damaging Flex and also we don't want to
Electronics Forum | Thu Jun 04 15:41:07 EDT 1998 | Chrys
| If you could measure and chart 3 variables in my process, what would they be? | The boards that I produce are on panels that are 12up and 2x4 up. All boards are single sided paper base w/o plated thru holes. They are on scored panels that measure
Electronics Forum | Thu Jul 14 16:05:55 EDT 2005 | russ
Good answer slthomas! This has got to be the biggest misconception out there. To perform SPC on a wave process you must first perfrom DOE to determine the critical parameters and or control limits. For example you will need temp reading devices tha
Electronics Forum | Wed Dec 01 22:34:32 EST 1999 | Dave F
Mark: Ralph Woodgate is a "god" of solderability control programs. We have: � Been attending his seminars for, maybe 8 to 10 years ... who keeps track when you�ve been breathin� fumes that long? � Three different editions of his "Handbook Of Machi
Electronics Forum | Sat May 21 08:22:42 EDT 2005 | davef
We agree with the previous poster. 50 pounds sounds like a lot. We don't know: * How often you dedross? * What method you use for dedrossing? * What portion of your dross that is dross versus solder? * How many boards do you run between drossings?
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