Electronics Forum | Tue Mar 14 05:02:35 EST 2000 | emmanuel
I am to implement PBGA, and i am looking for PCB surface finish informations. A lot of technical reports are specifing NiAu finishing because of flatness property. Because of leads shape, I though that BGA doesn't need flat pads like QFP. Is it false
Electronics Forum | Mon Mar 13 15:10:52 EST 2000 | Stuart Adams
Assuming agressive design rules what is the minimum distance I can get away with between the board edge and a SMT pad and between the board edge and a plated mounting hole ??? (The board is only 1"x2" and the mounting holes are 80 mil dia, 125 mil
Electronics Forum | Mon Mar 13 15:35:32 EST 2000 | Ioan
Stu, it is good you know that there are limitations and you want everything. Wish our designers work like that. So, the limitations we impose are dictated by the rails of the insertion and dispensing machines. Normally a .150" keepout will make a s
Electronics Forum | Tue Mar 21 20:27:26 EST 2000 | Dave F
Sorry, I went dyslectic of the doc numbers, but you get what I mean (I hope): * J-STD-001B was released October 1996 * J-STD-033A was released April 1999 Without belaboring the point further, J-STD-001C is current and contains references to J-STD-
Electronics Forum | Mon Mar 13 20:16:39 EST 2000 | Dreamsniper
If an operator loaded a wrong value of component with the same packaging, say 0805, on a feeder slot. how will the program verify this situation? or an operator interchanged 2 0805 capacitors with different values from feeder slot #5 and feeder slot
Electronics Forum | Mon Mar 20 22:33:08 EST 2000 | RJJOHNSON
Cim system is what we used on cp6 d axis tables.It worked very well.I liked it and it was for pre run and during run feeder feeding.Uses a barcode reader and reads bottom of d axis where barcode are to match what is assigned to a slot by pre scanning
Electronics Forum | Fri Mar 10 05:16:32 EST 2000 | Jeff
We have nozzles breakage troubleshooting since we uses the PANASONIC RMA nozzle on our MV2x Chip-shooter. Our nozzles are breaked in its opening, and cause components damages. Also, if anyone with experience in nozzles breakage with PANASONIC RMA No
Electronics Forum | Sun Mar 12 13:09:33 EST 2000 | Jeff Wilson
Jeff, The problem you are describing MAY be related to the push up pin setting on your component feeder units. Please verify that the push up pin height is set correctly for the feeder units, and the nozzle pick-up and placement heights are to the c
Electronics Forum | Fri Mar 10 09:13:22 EST 2000 | Nancy V
Dave, Your response might have been helpful if you would have left off the extra, comical(?), comments. I am American and I still couldn't figure out what you were trying to say sometimes. Searching the web to find an ESD program and training seem
Electronics Forum | Mon Mar 13 15:02:43 EST 2000 | Boca
Breakaways are clearly the best solution for us in manufacturing. A big difference between wavesolder pallets and SM pallets is the need for a flush top surface for stencil to PCB contact in the printer. One vendor has a device which hold the PCB
