Electronics Forum | Fri Jul 16 06:22:31 EDT 1999 | Wayne Sanita
Mark, I had the same peoblem. For my stencils i use a 15% reduction for the width of fine pitch leads only, as Earl said follow the 1:1.5 standard. We consider pitches of 32mil and under. We also clean the stencil every other board to ensure no caki
Electronics Forum | Tue Jul 06 16:44:14 EDT 1999 | John Thorup
| Is anyone aware of some guidelines regarding through-hole in SMT pads? One of our designers wants to add through-hole leads in some SMT pads for an inductor. The size of the hole is 0.032 inches and takes-up approximately 25% of the pad area. Th
Electronics Forum | Fri Jun 18 13:47:33 EDT 1999 | Jason Gregory
| Now don't everyone jump on this at once, but it seems time for me to send out copies of my not even close to being dated copy of an article about HASL. Though it was published in 1992, in Printed Circuit Fabrication Magazine, and it got rave review
Electronics Forum | Fri Jun 18 10:59:37 EDT 1999 | Scott Cook
| A user of one of our components exceeded the floor life of some plastic BGA components. They did do a pre-bake prior to SMT reflow but only 72 hrs at 40C and not the recommended 12 hours at 125C. I've recommended accoustic microscopy to look for po
Electronics Forum | Thu Jun 17 19:40:11 EDT 1999 | Scott Cook
| first of all what is the technical term for the small amount of solder on a plated pad. we are getting poor screen printing gasketing on a 20 mil qfp due to this solder not being even or too high in spots and not covering the length of the pads. an
Electronics Forum | Thu Jun 17 19:40:27 EDT 1999 | Scott Cook
| first of all what is the technical term for the small amount of solder on a plated pad. we are getting poor screen printing gasketing on a 20 mil qfp due to this solder not being even or too high in spots and not covering the length of the pads. an
Electronics Forum | Thu Jun 17 19:41:29 EDT 1999 | Scott Cook
| | first of all what is the technical term for the small amount of solder on a plated pad. we are getting poor screen printing gasketing on a 20 mil qfp due to this solder not being even or too high in spots and not covering the length of the pads.
Electronics Forum | Wed Jun 16 13:43:17 EDT 1999 | Earl Moon
| | A potential customer of our is inquiring if we have capability | | for Hot Bar manufacturing in the PCBA manufacturing world. If someone can explain to me what this entails, I would greatly appreciate it. Thank you. | | | One of the earlier u
Electronics Forum | Wed Jun 16 13:58:34 EDT 1999 | John Thorup
| | | A potential customer of our is inquiring if we have capability | | | for Hot Bar manufacturing in the PCBA manufacturing world. If someone can explain to me what this entails, I would greatly appreciate it. Thank you. | | | | | One of the e
Electronics Forum | Wed Jun 16 14:01:44 EDT 1999 | Jagman
| | | A potential customer of our is inquiring if we have capability | | | for Hot Bar manufacturing in the PCBA manufacturing world. If someone can explain to me what this entails, I would greatly appreciate it. Thank you. | | | | | One of the e
