Electronics Forum | Tue Oct 05 00:10:01 EDT 1999 | karlin
Hi, Help! Could anyone help to enlighten me on this? Question: If I have a CSP/BGA package of size X by Y and the standoff gap between the component and PCB is Z, What is the maximum allowable Y/Z or X/Z that using a normal water clean washing ma
Electronics Forum | Tue Oct 05 13:30:23 EDT 1999 | Debbie Alavezos
| Hi, | | Help! Could anyone help to enlighten me on this? | | Question: | | If I have a CSP/BGA package of size X by Y and the standoff gap between the component and PCB is Z, What is the maximum allowable Y/Z or X/Z that using a normal water cl
Electronics Forum | Thu Sep 30 07:03:05 EDT 1999 | Scott Cook
| Hi everyone, | | Greetings! | | I�ve got a 2-layered through-hole PCB�s having the following problems: | | Solder Mask peels after wave soldering at random locations and only at the bootom side of the PCB | Insufficient Solder and some solder ne
Electronics Forum | Wed Sep 29 04:30:27 EDT 1999 | ROBERT
| | Hi All, | | Any one experince BGA-chipset warp about 10-15mil after removing | | from PCB? | | FYI, the rework temperature for preheat was 170C from room | | temperature about 30 seconds, & BGA was removed at temperature | | between 190-200C.
Electronics Forum | Thu Sep 23 23:34:47 EDT 1999 | JAX
| Is there a standard rule/guide for the orientation of pcb's in a panel for panelised board (specially for routed panel). | i often get this question from peeps here and i kept telling them that it depends on how it affects the process. | thanks and
Electronics Forum | Thu Sep 23 20:23:58 EDT 1999 | Dave F
Jackie's posting recently and responses to it got me to dondering. First, recollecting, we bought an IR rework station a couple million years ago. It had a IR source on a stand, a bunch of lenses, and Reynolds aluminum foil for shielding near-by co
Electronics Forum | Thu Sep 23 20:57:13 EDT 1999 | Dean
| Jackie's posting recently and responses to it got me to dondering. First, recollecting, we bought an IR rework station a couple million years ago. It had a IR source on a stand, a bunch of lenses, and Reynolds aluminum foil for shielding near-by
Electronics Forum | Thu Sep 09 09:00:10 EDT 1999 | Dave F
| hi, i m college student. i m currently doing my Final year project in PCB drilling. the main task is to design auto feeder which allign the PCB properly in position before drilling take place. the close tolerance becomes a big problem to the precis
Electronics Forum | Wed Sep 08 16:44:15 EDT 1999 | Rob Jankowski
I am wave soldering a single sided through hole PCB array with (6) .040" round diameter pins that sit .5" off the PCB, and .080" apart. The problem being experienced is that solderballs are appearing on the end of the pins. I have tried decreasing
Electronics Forum | Wed Sep 01 13:42:08 EDT 1999 | Dave F
| I just recently entered the PCB industry and need some input from the Pros. I am looking for all-inclusive reference books...Are there any that you'd HIGHLY recommend? Thanks... | Rookie: Welcome. SMTnet sells a colection of books. (Gotta get
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