Electronics Forum | Wed Mar 20 19:53:11 EST 2002 | davef
Your customer's question is reasonable. Before you can establish your control limits, you need to take 25 to 30 data samples of 4 to 5 measurements. This says you need a 100 or more measurements before you can start charting. And even this much
Electronics Forum | Fri Mar 29 11:32:37 EST 2002 | slthomas
Thanks, Larry, more good info. I think my designer has that spec. in his library. What we DID find that while we had the proper pattern called out in our in house spec. sheet for the part, the designers don't look at the spec. sheets. They just grab
Electronics Forum | Wed Mar 27 10:32:29 EST 2002 | barryg
hello evryone. I am rleatively new to smt production. Though we have been successfully running pcb assy's and getting very good solder quality we are trying to get some proccess control parameters set up for our printing process. We have a semiauto s
Electronics Forum | Fri Apr 05 08:00:18 EST 2002 | Chris Lampron
Good Morning Everyone, It has recently come to my attention that components (PLCC's)are being placed in the sockets prior to wave soldering. Some of these components are MSD's. They have been overexposed to the atmospere, then are subjected to the w
Electronics Forum | Sun Apr 14 16:02:17 EDT 2002 | bdiego
Hello, Can someone help me, I want to setup a high speed SMT line. i have only 3 different products, and i have to change only once a week. I want to place 0402 and maybe later 0201. I think that a FCM 2 or a QP-132E are good machines for that? c
Electronics Forum | Mon Apr 22 16:55:42 EDT 2002 | russ
Greetings All, Anybody out there experiencing white residues after cleaning? We currently use a batch cleaner to clean water soluble fluxes. this cleaner makes its own DI water by means of carbon and resin tanks. After cleaning there are residues
Electronics Forum | Thu May 02 12:32:29 EDT 2002 | jmathis
Hello, BUY Juki! Trust me on this one, I have experinced both and I may change careers if I find out I'm going to support another Quad line. There is a reason why that company struggles every year. Quad is not in the same market with the Fuji and
Electronics Forum | Mon Jan 27 18:47:10 EST 2003 | jonfox
I'm a former Q/M/Tyco field guy, what was so bad? I know the guys in tech support, and as far as I'm concerned they are all top notch guys when it comes to troubleshooting and finding problems with their equipment. Not only that, but the Quad machi
Electronics Forum | Mon Apr 29 02:50:03 EDT 2002 | Bob Willis
The basic guidline is lead size plus 0.010" which you can also use for through hole reflow/intrusive reflow. Most suppliers of the insertion equipment quote this as the minimum clearance hence its a good guide. Druing recent trials for through hole
Electronics Forum | Thu May 02 11:34:39 EDT 2002 | Yannick
Hi, You can go to http:\\www.circuitree.com they had a supplement with the april issue of the magazine with a very good article on 4 board finish, if you are able to find it on the web site you will find all your anwser and more :)The article name
