Electronics Forum | Sun Mar 29 15:42:05 EST 1998 | Michael Fogel
| | | We are having some problems with "drawbridging" on 0805 film capacitors. | | | We have already reduced the pad width from .050" to .040" based on input | | | from vendor. Defects appear to be random as far as location on the PWB and direction
Electronics Forum | Mon Mar 30 07:44:12 EST 1998 | Earl Moon
| | | | | We are having some problems with "drawbridging" on 0805 film capacitors. | | | | We have already reduced the pad width from .050" to .040" based on input | | | | from vendor. Defects appear to be random as far as location on the PWB and d
Electronics Forum | Fri Mar 20 15:10:54 EST 1998 | Steve Abrahamson
| Cpk's on top flight ovens (e.g., Conceptronics, Heller, Electrovert, Vitronics) vary wildly, from 1 to 2+, between different supplers. The suppliers don't seem to understand Cpk's. A supplier's rep whose oven has a Cpk of 1.0 told me: | 1. Cpk's
Electronics Forum | Wed Mar 11 11:05:06 EST 1998 | Earl Moon
| I am having a problem with Entek coated boards. The solder past seem to just ball up on the pads. I had no problems with the board when it was hot air leveled. The board is double sided surface mount. I have tried adjusting the oven profiles mak
Electronics Forum | Sun Mar 15 23:58:01 EST 1998 | Phill Hunter
| | I am having a problem with Entek coated boards. The solder past seem to just ball up on the pads. I had no problems with the board when it was hot air leveled. The board is double sided surface mount. I have tried adjusting the oven profiles m
Electronics Forum | Tue Mar 10 21:40:27 EST 1998 | Carl mitchell
| I am having a problem with Entek coated boards. The solder past seem to just ball up on the pads. I had no problems with the board when it was hot air leveled. The board is double sided surface mount. I have tried adjusting the oven profiles mak
Electronics Forum | Tue Jan 20 13:33:14 EST 1998 | Justin Medernach
| This is a re-post of my previous message. I typed my Email address wrong in the other message. I am sorry for any inconvenience caused. | Is there anyone who can tell me what is the maximum allowable soldering temperature when soldering a TQFP (Thi
Electronics Forum | Wed Jan 14 08:24:07 EST 1998 | Allison
Good luck in your conquest. I have been struggling with the same issues for some time now. I have made the following conclusions. First, it is nearly impossible to establish parameters in SMT to perform X-Bar and R charts. Electronics is not as cl
Electronics Forum | Wed Sep 05 14:51:47 EDT 2001 | gdstanton
Well, it appears after running both a bare and populated PWB we were seeing flux exhaustion on the uBGA. The problem apparently resulted by a recent maintenance effort where the air blowers in the reflow oven were replaced. The blower replacement m
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
