Electronics Forum | Wed Dec 04 07:35:08 EST 2019 | proceng1
We also have a few customers that seem to buy the cheapest LEDs available and provide them for the build. We've had complete reels that had obviously been exposed and oxidized. You can try a solder with a more aggressive flux. How long is your pro
Electronics Forum | Fri Sep 24 15:04:29 EDT 2021 | dwl
A few random thoughts: Nitrogen in reflow is mostly cosmetic, to get shiny joints on lead free. If you are getting good results without nitrogen now, there's no need to add it on your new line. Since power consumption is important, I would get spec
Electronics Forum | Thu May 17 07:36:40 EDT 2001 | Bob Willis
Here is a copy of a draft document on PIHR Inspection I have jotted down on a flight to Scotland yesterday, any comments suggestions etc ? I have already most of the photos for the standard but as you know there is nothing in the IPC document it just
Electronics Forum | Mon Jan 28 08:07:44 EST 2002 | JohnW
Sorry I keep forgetting you lot are backwards in the old metric system :0) anyhoo, yes IPC, the bastions of right well as long as your board is only 1.6mm thick (sorry 62mils)say that you need 75% min general and 50% on ground planes. I'd like to se
Electronics Forum | Tue Jan 18 12:36:11 EST 2000 | Dave F
Dave: I haven't located something to support your contention, yet, and I'm not going to comment on the factors that drive reliability beyond component selection, because I know that you've got some sweaty-palmed sales type wringing his hands waiting
Electronics Forum | Sun Aug 08 04:36:02 EDT 1999 | Brian
Dave Frankly, I think you may be barking up the wrong tree. Like DaveF, I suggest that the process would be horrendously expensive with masking and so on. The $64,000 question is whether what you propose will serve any useful purpose. I venture to
Electronics Forum | Sun May 23 07:13:56 EDT 1999 | Scott Cook
| Has anyone had any experience or data using vibration during the reflow process. | We introduced a vibration device attached to the fixed rail on a Vitronics reflow oven. The reason was to prevent skewing on large PLCC devices. The process worked v
Electronics Forum | Thu Apr 22 08:43:25 EDT 1999 | Michael N.
| | I'm having problems with trying to get a good solder joint using a Ceramic PCB. We are using AMTECH hi-temp solder (ws-486 96.5/3.5ag). My profile looks great and I used the recommended profile from Amtech with a few adjustments. My max temp is a
Electronics Forum | Sat Jan 16 03:06:36 EST 1999 | Wirat S.
| | Our spec on voids is 30% ball diameter in the center. On the component to ball and pad to ball interface, we use 25%. To determine this spec, we asked around. I don't know of any studies that have been done to verify if this is OK | | | | Regard
Electronics Forum | Thu Dec 03 11:01:03 EST 1998 | Walter Cole
Hi Scott, I am a regional manager for Multitroniks and would be glad to assist you with additional information on the systems you are asking about. Both of these machines can be demonstrated for you any time at our factory in Warren, NJ. Below I'l
