Electronics Forum: today (Page 32 of 88)

Affect of Moisture on Assembled PCBs

Electronics Forum | Tue May 18 10:14:04 EDT 2004 | Rob

What affect does moisture have on sensitive components on a board as it waits for thru-hole assembly? Suppose I run a batch of boards today and the assembly dept won't be able to get to it til maybe a month from now, is it okay to just let the boards

Lead Free ...

Electronics Forum | Tue Sep 07 23:57:05 EDT 2004 | KEN

If you want someone to do it for you, hire a consultant. IF you think its going to be handed to you over the web, get real. I don't think coke Inc would be where it is today if it published the formula to coke. For that matter, any CM or OEM would

Calculating Reflow Slope

Electronics Forum | Tue Oct 05 17:37:21 EDT 2004 | mikecollier

We currently use a KIC 2000 system to profile on our oven and create our recipes. I had a customer in today reviewing our profiles, and he had concerns that we were exceeding 4 deg. c/sec. on our profiles. The process window parameters that we use

solvents for cleaning metal stencils

Electronics Forum | Fri Nov 05 17:29:53 EST 2004 | Steve Stach

Most metal stencils today are cleaned with a water based cleaning solution. 3 choices are most typical: (1) Water only for water-soluble paste (2) Water + Organic for rosin and no-clean (low residues. This affords lower temperatures and is easier t

Using Embossed CP6 Feeders for Paper

Electronics Forum | Wed Feb 16 09:37:58 EST 2005 | beta

Hi Guys, I have a customer who requires 95 paper 8*4 CP6 feeders on the setup. We dont have the required quantity but we do have embossed feeders that we could use. Just looking for some onfo. on performance using paper in embossed feeders as I migh

A.O.I recommendation

Electronics Forum | Thu May 26 18:55:15 EDT 2005 | bakersm

I have been comparing Mirtec to Yestech on a regular basis. As a AOI trainer and installer, I have seen significant difference between the machines. 1. In a side by side comparison just today, using the same board, I found the following: a. Insp

Fuji CP4&CP6 Placement issues

Electronics Forum | Mon Jan 30 03:42:49 EST 2006 | daxman

Thanks for the reply fellas, I spent all day today working on these machines, and indeed, this is bizzare. The main line was in production, and the placement was excellent on the CP6. I transferred a reel (400 parts per board) to the CP4 and the p

Lead-free and Leaded solder in the same reflow

Electronics Forum | Tue Jan 31 12:13:26 EST 2006 | Calvin Kolokoy

Today's regular Sn-Pb paste chemistries are designed to run at higher peak temperatures ensuring that your lead-free alloys will coalesce with your regular Sn-Pb solder. That being said, it is do-able to solder both types in one oven. Generally, wit

Squeegee angles

Electronics Forum | Tue Mar 14 09:54:34 EST 2006 | slthomas

"45* is a common angle of attack. Squeegee blades are commonly manufactured at 60*. The combination of the angle of attack and the blade angle results in an actual printing angle between the two due to down pressure and flex of the blade." Ahhhh, so

I need a QUAD QSP-2 Question answered

Electronics Forum | Fri Apr 07 16:12:37 EDT 2006 | craig_83

I would like to freeze feeders on a global basis. I am tired of table changeovers everytime I run a different board. A good example is today I ran 1 board which went well. I wanted to run a board behind it that had 99% the same parts. I am not necess


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