Electronics Forum | Fri Apr 20 08:41:56 EDT 2001 | jimlew
For those of you out there, like myself who are still using 2-d to measure paste ht, I have 2 questions. 1. Typically, what tolerance are you applying to your ht? +- 1 mil, or what? 2. Are you using metal squeegees, and if so, have you found that squ
Electronics Forum | Fri Apr 20 11:05:23 EDT 2001 | gcs
Just a bullet! My results are, .005" stencil thickness should measure between .0055" - .006" if your pressure is correct, metal blades and snap-off is set up correctly. Do you have aperture reductions at the QFP locations "typicial industry standard
Electronics Forum | Fri Apr 20 16:05:17 EDT 2001 | gcs
We always reduce side to side, EXAMPLE: 12 mil width reduced to .010". Do you guys check viscosity ? Also maybe your guys are appling to much pressure on the sqweegee blades.
Electronics Forum | Fri Apr 20 15:27:00 EDT 2001 | jimlew
We do some aperture reductions - but it's not the 10% i'm accustomed to. Looks like it should be more than we currently do (I think we do 10% of length, but no width). Don't think we have a slumping problem, and we're not doing snap-off, only contact
Electronics Forum | Sat Oct 20 07:19:02 EDT 2018 | jingyiprecision
Hello Friend , How are you ? We are a China factory of metal parts , The process include cutting ,punching ,Machining and etc... ,Could you share more details of your product ? Do you have drawing ? Our engineer will check and advise . Maybe you ca
Electronics Forum | Thu Oct 04 17:45:10 EDT 2018 | avm
Hello friends, I'm looking for hints where to buy metal/steel sheets for stencil cut. Worldwide. Different quality, thicknesses and surface treatment.Size 23x23, 29x29. I heard there were some good quality metal sheets suppliers in Finland, Japan, M
Electronics Forum | Wed Apr 17 02:30:03 EDT 2002 | seje
Hello. There is been a lot of talk about thick plastic stencils vs. metal stencils for adhesive printing, but how about thin plastic stencils? We used to use a very thin plastic stencil (from loctite) with printgap (=snap-off) to adhesive printing
Electronics Forum | Thu Mar 31 23:14:18 EST 2005 | Steve
Russ if your asking me if covering the surface of the granite defeats the purpose then I'm lost. An ionizer is a very good suggestion but they are not inexpensive. If the table is grounded and the metal bars are on a grounded mat, laminate etc. then
Electronics Forum | Mon Jul 12 11:35:27 EDT 2004 | Pierre RICHARD
Here are some answers to my questions after a good research. I also added more definitions that could help understand this esoteric language used in assembly, specially surrounding fluxes and their use. In blue italics are comments and extracts from
Electronics Forum | Wed Mar 23 19:57:18 EDT 2011 | dlou87
Im sure this has been gone over before, but what the heck! We are mounting LEDs on metal core PCBs. Almost all of them have domes of silicone on top. We have some large boards (largest is 2ft x 3") Not concerned with parts/hour or fancy features.
