Electronics Forum: alpha and metals (Page 8 of 30)

Lead Free and Leaded Process Mix

Electronics Forum | Tue Jul 19 08:51:29 EDT 2005 | GS

any thanks Rob, te specimen label Anglia is some thing complete and very helpful example. Hope Comp Suppliers will take care about the needs of Users (mainly if they are small EMS). To know how the terminals/leads are metal finisched is important f

The truth about lead-free and environment

Electronics Forum | Fri Mar 24 12:16:37 EST 2006 | patrickbruneel

Darn Rob you're brilliant You just solved the dilemma of micro cracks and hot tear in lead free, just add a softer metal like.....and the joints won't crack. You wrote "BTW: Lead is far softer & dissolves far more easily than copper or tin, hence wh

Mydata (MY12) error-Frame Grab and Light Curtain

Electronics Forum | Fri Sep 25 13:09:42 EDT 2009 | rmitchell

Thanks to those that responded. I eliminated the light curtain problem. The metal plate the light curtain pcb bolts to was bent. I had it aligned in our machine shop and it worked properly. I forgot to mention the error was pooping up with no fee

Solder paste height and metal squeegees

Electronics Forum | Fri Apr 20 08:41:56 EDT 2001 | jimlew

For those of you out there, like myself who are still using 2-d to measure paste ht, I have 2 questions. 1. Typically, what tolerance are you applying to your ht? +- 1 mil, or what? 2. Are you using metal squeegees, and if so, have you found that squ

Re: WAVE SOLDERING and Gluing 0603 packages

Electronics Forum | Sun Apr 25 12:05:50 EDT 1999 | Chrys Shea

| | | Has anyone had trouble waving and gluing 0603 R's and C's? At my company, our designers have "opened the floodgates" on bottom-side 0603's. | | | | | | We've got an EPK+ with rotary chip and omega wave but can't seem to get skip-free solderin

Re: WAVE SOLDERING and Gluing 0603 packages

Electronics Forum | Mon Apr 26 09:18:27 EDT 1999 | C.K.

| | | | Has anyone had trouble waving and gluing 0603 R's and C's? At my company, our designers have "opened the floodgates" on bottom-side 0603's. | | | | | | | | We've got an EPK+ with rotary chip and omega wave but can't seem to get skip-free so

Re: Quick Frame and Dek 265GS

Electronics Forum | Tue Jun 02 13:44:04 EDT 1998 | Rin Or

| | | | | Does anyone use the "Quick Frame" with their Dek printer? | | | The threads on the screws keep stripping, so we thought | | | maybe we'd send our frames to a machine shop for heftier | | | screws. Has anyone done this? Is there a better wa

Solder paste height and metal squeegees

Electronics Forum | Fri Apr 20 15:27:00 EDT 2001 | jimlew

We do some aperture reductions - but it's not the 10% i'm accustomed to. Looks like it should be more than we currently do (I think we do 10% of length, but no width). Don't think we have a slumping problem, and we're not doing snap-off, only contact

The truth about lead-free and environment

Electronics Forum | Fri Mar 24 11:54:18 EST 2006 | Rob.

Hi Patrick, I'm patriotic to a point & that doesn't include supporting crap decisions, & those that have handled the ROHS & WEEE implementation have been beyond useless & should be locked in a lead lined room with Roman plumbing. Yes we need to r

floor and air conditioning, shop floor requirements

Electronics Forum | Tue May 07 03:56:30 EDT 2013 | pavel_murtishev

Davef, Thank you. I wonder if you have ever faced with concrete layer thickness selection for SMT shops? All I have found refers to metal treatment shops (primarily milling & drilling). 6" concrete is thick enough for them to stabilize milling machi


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