Electronics Forum | Thu Apr 12 13:04:47 EDT 2007 | slthomas
Handling requirements of all classifications of moisture sensitive devices is found in J-STD-033. It really isn't an issue for most parts unless they're going to reach reflow temperature again, which is unlikely unless you're removing a nearby compo
Electronics Forum | Thu Apr 19 08:32:14 EDT 2007 | Hussman
We are running a proto using the Zierick Bottom Entry Through-Board Stockets. http://www.zierick.com/pages/sm_bts1260.php Anyone currently using these or the 1280 design? My question is they over this part on tape and reel and wanted to know how y
Electronics Forum | Mon May 07 12:04:59 EDT 2007 | patrickbruneel
Jerry, If you�re sure your board has sufficient flux it must be that your slow flowing (single lambda) wave produces more oxides then the flux can handle. Due to the conveyer angle the front of the board usually has less flux then the back of the bo
Electronics Forum | Tue May 29 13:15:13 EDT 2007 | brulal1
Hi everyone you are upgrading our line, we already have and MSR HD 15 from Panasonic, we want to add and Advantis AX-72 form Universal. Panapro sotware don't have the option for the Advantis Ax72, so for now we have to used both software Panapro to g
Electronics Forum | Wed May 30 18:05:02 EDT 2007 | fredc
Chunks, Nozzle unfriendly? Maybe it should be called nozzle hostile. Depending on the machine and lighting a nozzle with a 1.8mm tube might work. In English units that would be a .072 OD with a .062 ID. The area such a nozzle would pick from is the 6
Electronics Forum | Sat Jun 09 07:59:14 EDT 2007 | davef
A keypad overlay is used to adapt one basic keypad design to a variety of applications. The overlay is positioned on top of the key board to match functions on the overlay with buttons on the keypad. The user selects a function on the by pressing t
Electronics Forum | Mon Jun 18 10:11:52 EDT 2007 | dyoungquist
Almost every board/panel we build is double sided and we use an MPM SPM screen printer with no problems. The screen printer is not the cause. We have seen heavier parts fall off the first side when going through the reflow for the second side. We
Electronics Forum | Wed Jun 20 11:39:56 EDT 2007 | realchunks
That's like asking the IRS to do your taxes for ya. Once they're in your building, they will not leave until they go thru top to bottom. Remember, EPA Field Investigators are "supposed" to find things wrong. They may not find any thing wrong with
Electronics Forum | Fri Jun 22 11:09:01 EDT 2007 | realchunks
Sup G! Normally when spray fluxers get neglected, the spray pattern is the first thing affected. To actually 'see' this, we cut out a piece of cardboard the same size and length of the board. Run it over the fluxer and then turn itover and look at
Electronics Forum | Thu Jul 05 10:11:19 EDT 2007 | ck_the_flip
The variables to study: * Dwell Time * Contact Length * Conveyor Speed * Parallelism * Top-side Substrate Temperature Before wave * Solder Pot temperature All of these variables are inter-related (ie changing one variable will affect another)
