Electronics Forum | Tue Mar 22 12:27:19 EDT 2011 | swag
At times, yes. We do high volume, fine pitch on flex panels and if we need a 8 mil width aperture, it can't be 9 or 7. It has to be 8 and we have seen times where the tolerance is +/- 1 mil. Additionally, we have received stencils with abnormally
Electronics Forum | Wed Dec 20 10:04:07 EST 2017 | junkeymonkey246
Hello there, I work at Redcom Laboratories in Victor NY. I'm a student and new to being a machine repair technician. I'm having some bother with one of our TYCO QUAD QSP-2 machines. I keep getting the errors: "WARNING: Head#2 Nozzle RUNOUT=27.1 mi
Electronics Forum | Wed May 23 15:58:01 EDT 2018 | mcurtin2011
Those patterns are either: a) the stencil has recieved some streching stress - either being pushed on and dented by some obstruction, or b) has been worn thin and therefore streched as a result. This type of change to your foil may cause a slight sh
Electronics Forum | Mon Jan 10 03:45:23 EST 2022 | proy
YES there is an IPC target/acceptable spec In general terms the barrel thickness in the hole should be 1 mil (thou). IPC has an allowable limit lower around .75 with some other factors. I have been checking barrel plating on all incoming boards since
Electronics Forum | Wed Mar 23 11:40:21 EDT 2022 | SMTA-64388039
In my experience a distance of 30 mils per 1 mil in height above PCA nominal is sufficient for the squeegee blade to bend (in the direction of squeegee travel) so that you don't have excessive solder issues near the label. Labels are about 5 mils ta
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 | Thu Apr 22 15:27:44 EDT 1999 | Hugh M
| | I keep hearing about polyimide stencils, but what are they like in terms of registration and aperture accuracy? | | | You are hearing about polyimide as in polyimide film as Kapton (TM Dupont). This material is the stuff of flex and rigid/flex c
Electronics Forum | Sun Sep 19 06:15:41 EDT 1999 | Earl Moon
| | | | | | I am not familiar with the "mil" metric. How many inches is in 1 mil? | | | | | | | | | | | | ...or 10 mil? | | | | | | | | | | | | | | | | | 1 mil= .001 inches | | | | | 10 mil= .010 inches | | | | | Also, it has nothing to do with m
Electronics Forum | Sun Sep 19 06:16:50 EDT 1999 | Earl Moon
| | | | | | | I am not familiar with the "mil" metric. How many inches is in 1 mil? | | | | | | | | | | | | | | ...or 10 mil? | | | | | | | | | | | | | | | | | | | | 1 mil= .001 inches | | | | | | 10 mil= .010 inches | | | | | | Also, it has noth
Electronics Forum | Mon Sep 20 04:50:24 EDT 1999 | Brian
| | | | | | | | I am not familiar with the "mil" metric. How many inches is in 1 mil? | | | | | | | | | | | | | | | | ...or 10 mil? | | | | | | | | | | | | | | | | | | | | | | | 1 mil= .001 inches | | | | | | | 10 mil= .010 inches | | | | | | | A
