Electronics Forum | Thu Aug 10 19:12:38 EDT 2000 | david_
thanks very much for the info John and Bob, and I'll see what happens next time I run them through...I'll keep the you and the forum posted Dave
Electronics Forum | Wed Aug 09 04:09:04 EDT 2000 | Jarno Py�ri�
Hello. I think, good stencil apertures is 80% from pad. And stencil thickness is 0.15mm - 0.20mm. I use 0.15mm thick stencil almost every pcb. Sorry my very bad english but i too learning. :)
Electronics Forum | Wed Aug 09 04:16:25 EDT 2000 | Jarno Py�ri�
And little more... If you use chip components, then that 80% from pads is good stencils apertures size. But if you use fine pitch components, example QFP, then you can use apertures, 90% from pads. I hoping that you understand something abou
Electronics Forum | Sat Aug 05 03:09:54 EDT 2000 | Felix
Dear Netters, Could anybody kindly advise : 1. what step stencil means 2. what are its characteristic ?? 3. What special process makes it? 4. What is the application ?? 5. Advantages and limitation ?? just short breifing is enough. Thanks Best
Electronics Forum | Fri Aug 04 09:17:57 EDT 2000 | JAX
Dougie, More info needed. (What type of feeders, Have they been modified for the different packadge types, Are the parts sticking to the cover tape or inside the plastic carrier tape........)
Electronics Forum | Thu Aug 03 12:02:50 EDT 2000 | James
Does anyone out there use a semi-automatic clamshell printer in production with pitches down to 20 mil? I would appreciate any advice you have on process control and setup parameters for this type of printer. James
Electronics Forum | Thu Aug 03 11:32:44 EDT 2000 | bzark
Any opinion on what size aperture and stencil thickness is most optimum for Land Grid Array 1.27mm pitch with .6mm pad using SN/AG NC solder paste?
Electronics Forum | Thu Aug 03 10:53:23 EDT 2000 | Roni Haviv
Hello, Does enyone have any experience with Immersion Tin (Sn) as a finish process on PCB ? Any information will help ! Thanks Roni
Electronics Forum | Thu Aug 03 10:26:10 EDT 2000 | JohnW
Ok the folk's so how's your math's?? I'm trying to track down an equation for calculating the output of a set of quartz lamps as part of a thermal matching program, anyone got any hints? and Dave...don't do it doesn't count! John
Electronics Forum | Thu Aug 03 06:26:21 EDT 2000 | JohnW
Folk's, dos anyone have any idea's here I'd gat my hands on some storage cainets for MSD components to allow me to store them on line? cheers JohnW
