Electronics Forum | Thu Jan 28 10:09:51 EST 1999 | Charles Stringer
| | | | Greetings, | | | | | | | | Can anyone tell me what temperatures pcb's should have when coming out of a forced convection reflow oven and out of a wavesoldering machine. | | | | Also, is there any danger of the pcb's giving off some kind of g
Electronics Forum | Tue Dec 07 16:34:54 EST 1999 | Russ
Wolfgang, I appreciate your continued feedback! The main reason that I shortened the Time Above Liquidous (TAL) was it appeared that I was burning off all of the flux from the paste. By shortening the TAL to 45 seconds and decreasing peak temp to
Electronics Forum | Thu Mar 02 16:06:32 EST 2000 | eLDON sANDERS
Gentlemen, I too have been atacked by that "soldering to gold" and will add my 2 cents. I also had parts that would pop off the board when the fillet looked perfect. After lots of pain, experimentation, and sleepless nights, I solved it through a
Electronics Forum | Thu Mar 02 16:06:32 EST 2000 | eLDON sANDERS
Gentlemen, I too have been atacked by that "soldering to gold" and will add my 2 cents. I also had parts that would pop off the board when the fillet looked perfect. After lots of pain, experimentation, and sleepless nights, I solved it through a
Electronics Forum | Mon Feb 28 12:17:49 EST 2005 | lyrtech
TO JAY: What type of assemblies are you having 50-75% fill on. - Capacitor, resistor Are they single sided? - Yes Plated through hole? - No Is this a recent problem? - Yes, first time, but we don't know how long it last. TO RUSS: What is your t
Electronics Forum | Thu Jan 28 17:37:00 EST 1999 | Earl Moon
| | | | | Greetings, | | | | | | | | | | Can anyone tell me what temperatures pcb's should have when coming out of a forced convection reflow oven and out of a wavesoldering machine. | | | | | Also, is there any danger of the pcb's giving off some k
Electronics Forum | Thu Jan 28 17:37:02 EST 1999 | Earl Moon
| | | | | Greetings, | | | | | | | | | | Can anyone tell me what temperatures pcb's should have when coming out of a forced convection reflow oven and out of a wavesoldering machine. | | | | | Also, is there any danger of the pcb's giving off some k
Electronics Forum | Fri Jan 29 07:55:52 EST 1999 | Wayne Bracy
| | | | | | Greetings, | | | | | | | | | | | | Can anyone tell me what temperatures pcb's should have when coming out of a forced convection reflow oven and out of a wavesoldering machine. | | | | | | Also, is there any danger of the pcb's giving of
Electronics Forum | Sat Oct 19 08:33:50 EDT 2002 | johnw
The whole thread seem's to have gone off track. Russ we've been doing a fairly big bit of work on the whole BGA voidign thing as we were so unhappy with the answer's that we were getting from around the industry, basically no one really kows all the
Electronics Forum | Sun Apr 25 17:30:25 EDT 1999 | Mohammad Yunus
| | | | We are just starting to manufacture a PCB with a .039" fine-line PBGA. We are currently seeing voids, mainly in the center, that are as much as 45%. We also intermittently see the corner balls of the PBGA smaller than the center balls. We are
