Electronics Forum: spacings (Page 21 of 119)

Mydata

Electronics Forum | Wed Mar 07 09:29:37 EST 2007 | AR

Thanks Rob So if it is only up to feeder space and fast and easy feeder loading mechanism, then surely most brands with feeder exchange carts will be equally fast or even better when changing over, provided you have a sufficient number of exchange f

Juki optimisation

Electronics Forum | Tue Mar 20 14:33:41 EDT 2007 | MEERAZ

JUKI 2000 MACHINES CAN PICK UP SIMULTANEOUSLY ONLY WITH 8MM FEEDERS (4 HEADS AT ONCE) 12 AND 16 CAN BE PICKED UP BY TWO HEADS (OR 3 HEADS KE-2060), HEAD SPACING ARE THE SAME AS 8MM FEEDERS

What is delta t?

Electronics Forum | Wed Oct 24 10:48:47 EDT 2007 | slthomas

Actually I didn't see anything saying this person was an engineer, but I digress.... In this case this person may very well be referring to the delta t across space rather than over time, as in different locations on a pcb that's being profiled.

High Temperature PCB ink

Electronics Forum | Thu Nov 15 22:10:16 EST 2007 | davef

Questions are: What is: * Purpose of this PCB ink? * Meaning of 'non-conductive?' * Temperature of your laser? * Reason solder mask is not the product of first choice? * Space of the unsoldered region located between soldered areas? * Maximum cure te

PCB Delamination

Electronics Forum | Fri Feb 01 05:40:17 EST 2008 | aj

we have also seen this issue but seems to be on boards whee there is a open space and no copper hatching. We bake these boards out for 4-6 hrs @ 125oC. aj...

Min spacing for land patterns from PCB edge

Electronics Forum | Thu Mar 20 10:59:59 EDT 2008 | fsw

Thnx Dave! I have not seen anyone as yet using fixtures to support brds while using Pizza cutters. Will check it out.

Min spacing for land patterns from PCB edge

Electronics Forum | Fri Mar 21 08:28:35 EDT 2008 | lococost

Boardhouse, would it be possible to attach a picture of such a routed slot together with a V cut? I was always told the 2 don't work together that well because of tolerances.

Min spacing for land patterns from PCB edge

Electronics Forum | Mon Mar 24 12:11:38 EDT 2008 | scombs

Is this what you are looking for? We do this on quite a few boards and it has eliminated component problems from the Cab depaneler (pizza cutter)

PCB Fab House

Electronics Forum | Thu Apr 03 15:17:35 EDT 2008 | lakeside

Hi John, Check out Sierra Proto Express: http://www.protoexpress.com They have a microelectronics division that can do the 4 mil laser drill & they can get down to 1.25 mil space/trace. Hope they can help! Julie

Tombstoning issues!!!

Electronics Forum | Wed Apr 09 21:41:28 EDT 2008 | diesel_1t

openings, rectangular no home plate. pad spacing don't have data right now. the problem is those products have from 1 year to 5, running constantly whitout problems and observe the issue around 3 lines no matter of the product.


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