Electronics Forum | Tue Apr 20 23:19:51 EDT 1999 | Lunar1
| | Jeez, | | | | I just about had a fine Mexico thing going, or was that in my dreams? Probably, but thanks for the future X possibility. | | | | OK! Let's keep this thing technical. Let us not dwell on the emotionally charged moment of my return.
Electronics Forum | Wed Apr 21 19:15:41 EDT 1999 | Wayne Bracy
| Jeez, | | I just about had a fine Mexico thing going, or was that in my dreams? Probably, but thanks for the future X possibility. | | OK! Let's keep this thing technical. Let us not dwell on the emotionally charged moment of my return. However,
Electronics Forum | Tue Mar 23 10:16:22 EST 1999 | Chrys Shea
| Hi Folks, | This is my first surface mount board, so I asked our assembly house for some tips. They said only passives on the bottom side-preferably no smaller than 0805, 0603 only if I have to. I would think that an SOT-23 would be OK on the botto
Electronics Forum | Wed Aug 12 14:39:09 EDT 1998 | Mike C
| Have an SRT w/preheat, 18 layer board all copper, 456 BGA needs to be removed and replaced. The manufacturer is Chip Express and during reflow it warps up or down. Causing either opens or shorts on the corners. I was using gel flux with multiple
Electronics Forum | Wed Jun 24 11:59:31 EDT 1998 | Brian Conner
| What is your current solder pot temperature? Whatever that temperature is, | has it been verified/calibrated? | What kind of flux is being used? No-clean, OA, RMA? | How is the flux being applied to the PCB? | Is this problem occuring on ALL nega
Electronics Forum | Fri May 22 10:43:23 EDT 1998 | Mike Konrad
You're right Earl� Drag soldering is a dead issue as far as new technology is concerned. They do, however, work for most through-hole boards� but so do wave machines. There are only two manufacturers left that still produce drag soldering machine
Electronics Forum | Wed Aug 08 15:31:30 EDT 2001 | johnw
Hi folk's, I'm looking for some hint's here. Got a board from the customner that is ceramic, and it's 2.2mm thick. I've got a couple of RF connectors that I need to solder, problem is I can't get any flow up the PTH's. The pin's are gold on the conn
Electronics Forum | Mon Aug 19 20:44:01 EDT 2002 | davef
George: There is no industry standard for the calculation of process capability. Although, you should be aware of IPC-9850, Surface Mount Placement Equipment Characterization Actually, there is a grand bulk of discussion on process capability in t
Electronics Forum | Thu Sep 05 13:49:05 EDT 2002 | dragonslayr
Cal- I am so ass-hamed for getting right to the end user stuff and forgetting about the process parameters. You are so right in pointing out the obvious lack of technical data. The raw materials include Hostess Twinkies, frying oil or grease and pow
Electronics Forum | Wed Oct 30 02:37:58 EST 2002 | Dreamsniper
Hi Guys, I have a fine pitch QFP that I suspect of having a solderability (wetability) problem. The heel joint is 50%-75% of the lead thickness so it means that I passed the IPC Class 2 recommended criteria on the Heel. The toe has at least 25%-50% s