Electronics Forum | Thu May 18 23:22:44 EDT 2000 | Micah Newcomb
Jerry, Contact FujiAmerica and ask for their newest product Guide. Some differences are..... IP2 - SMD1 vision (back lighting only, coplanarity check optional) IP3 - SMD3 vision (back, front, coplanarity check optional) IP3 - BGA transport, I
Electronics Forum | Fri May 05 07:05:00 EDT 2000 | TNT
Greg, You describe the Panel as being made up of 4 PCB's each rotated 90 degrees to its previous circuit. If this is true, the placement rotation changes enough that it would probably be best to define the entire panel as a single PWB. If you wante
Electronics Forum | Wed May 03 20:10:57 EDT 2000 | Dave F
Erhard: Several companies make feeders that move leadless chip components from a bulk feeder carrier, line them up head-to-tail, and present them to the pickup head of a high speed placement machine. Try: * Panasert * Suzuki � but you probably a
Electronics Forum | Fri Mar 24 10:26:45 EST 2000 | Russ
Sal, Interesting problem, I have found that W.S. pastes tend to have a shorter tack time in real life than what is advertised. Usually the manufacturers specify tack time as after placement let the board sit and then turn it upside down and see if
Electronics Forum | Wed Mar 29 04:14:49 EST 2000 | Marc
Charlie B: You mentioned that you have an air conditioned environment and a RH 0rf 50, baking the boards is predominately done when the history of the PCB delivery and / or previous storage conditions are un known. When I was with a CM, we did this a
Electronics Forum | Tue Mar 21 20:25:30 EST 2000 | Dave F
John: What�s the matter? Free gold � good thing for you, bad thing for your supplier. :^) Pre-tinning of gold plated leads is important to: � Prevent gold embrittlement of the solder joint � Determine if the leads are solderable prior to assembly (
Electronics Forum | Fri Mar 17 16:39:33 EST 2000 | Larry
We have just installed an omega wave to our W/S machine and are tring to W/S some of our bottom side surface mount components. I am still getting skips on some sot 23's. The component lay out meets all IPC 782 guidelines. I have verified these setti
Electronics Forum | Mon Mar 20 18:15:05 EST 2000 | Russ
Larry, SOTs are a wonderful thing to try and wave solder! They are about as nice as Tant caps. I have found that shadowing is usually the biggest problem assuming that the other wave parameters are good, in your case it seems that they are. Couple
Electronics Forum | Mon Mar 13 14:41:22 EST 2000 | Boca
By Hot Air Knife I assume (leave it alone Dave F.) that you mean a debridging knife located at the exit end of a wave solder machine. Russ is right, they are not a good substitute for a good process, but once the process (w/o HAK) is developed, it
Electronics Forum | Mon Mar 13 14:45:01 EST 2000 | Boca
By Hot Air Knife I assume (leave it alone Dave F.) that you mean a debridging knife located at the exit end of a wave solder machine. Russ is right, they are not a good substitute for a good process, but once the process (w/o HAK) is developed, it
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