Electronics Forum: underfill and keep and out (Page 1 of 7)

small and good pick and place machine

Electronics Forum | Thu Sep 05 23:18:03 EDT 2013 | feiyangniao

There is a new toy I received today: a NeoDen TM-240A automatic desktop pick and place machine! I’ve kept my eyes on this baby for a quite a while, and finally decided to make a purchase last week. The shipping was very fast: DHL from China, a total

Processing questions - PCB and BGA's

Electronics Forum | Fri Jan 30 14:20:55 EST 2009 | scottp

I do a lot of thermal cycle testing of new components for my company and often when I lay out a test board I'm trying to simulate 4 or 6 layer boards but I don't need them for routing so I just use a solid fill of a cross-hatch pattern. I've done it

Wasting Time and Bandwidth

Electronics Forum | Thu Sep 23 12:42:02 EDT 1999 | Bob Barr

Dear Administrator, On 9/25, a forum user named Seli posted a question titled "Electronic Manufacturing on the Beach". Out of 11 responses to his posting, exactly one had anything to do with his question. The other 10 were completely off topic. P

SPC and Wave

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.

Inventory control and maintenance

Electronics Forum | Thu Feb 26 14:47:19 EST 2015 | superlen

unique mnf/mnf part number. - Be meticulous on maintaining your WO Boms. Train your employees to not circumnavigate keeping the WOBOM accurate to what they kitted/placed on the board. If you keep the one to one part number relationship above this is

Wave and Reflow Profiler

Electronics Forum | Tue Feb 19 09:41:26 EST 2008 | slthomas

ECD sells the MOLE, and they sell both the Oven Rider and the Wave Rider to accompany it. The thing is, you can profile both an oven and a wave machine without either if you're willing to just solder your thermocouples to a board. The nice thing ab

PCB Storage and FIFO

Electronics Forum | Tue Sep 23 13:08:26 EDT 2008 | slthomas

Put the new stuff in the back and pull from the front. A pass through from stores makes that a lot easier. Bar codes are a wonderful thing if you can get people to use them. Wand it into stores then wand it sequentially into production via a queue.

SPC and Wave

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

Re: MoonMan and Tetras

Electronics Forum | Mon Apr 26 17:31:14 EDT 1999 | Earl Moon

| Hey MoonMan, | | Did I catch in one of your fabulous threads that you're using Tetra stencils? I'm anxious to find out how you're liking them. | | We we're all set up to go to Tetras, then mgt decided to close down our factory - Dooop! "Foiled"

CCGA and overprinting?

Electronics Forum | Mon Oct 15 10:51:49 EDT 2001 | davef

On over printing, the general issues are: * Paste deposits being so large that when reflowing, collapse onto many, rather than a single solder mass. * Paste expanding during heating and being close to other solder deposits and bridging [as you say].

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