Electronics Forum: stencil and designer and in and smt (Page 1 of 2)

Re: Bottom side smt and thru hole

Electronics Forum | Sun Jun 07 09:43:11 EDT 1998 | Bob Willis

There are some guidlines on design and through hole reflow on my web site to download. Also on pin in hole reflow the SMTA Office has a document on using the tecnology. R&D is currently designing a board with smt components on both sides of the bo

Bottom side smt and thru hole

Electronics Forum | Tue May 26 22:13:15 EDT 1998 | Pat Copeland

R&D is currently designing a board with smt components on both sides of the board. They are adding a 16 pin IC Gull wing. on the bottom side of the board. I have asked for only caps and resistors to be placed on the bottom side. Is there a recommende

Re: Bottom side smt and thru hole

Electronics Forum | Wed May 27 13:42:08 EDT 1998 | Chrys

R&D is currently designing a board with smt components on both sides of the board. They are adding a 16 pin IC Gull wing. on the bottom side of the board. I have asked for only caps and resistors to be placed on the bottom side. Is there a recommen

Re: Bottom side smt and thru hole

Electronics Forum | Wed May 27 14:35:52 EDT 1998 | Justin Medernach

R&D is currently designing a board with smt components on both sides of the board. They are adding a 16 pin IC Gull wing. on the bottom side of the board. I have asked for only caps and resistors to be placed on the bottom side. Is there a recomm

Pin in paste connectors and lead-free questions

Electronics Forum | Thu Aug 22 23:09:34 EDT 2019 | sssamw

Yes, you need work with supplier to see if can run pin in paste for these connectors, even do some experiments. A step-up stencil would be good for these connectors, also connectors pin size and length match with PCB hole design.

PCB Support in Pick and Place

Electronics Forum | Wed Jan 16 04:16:11 EST 2008 | grantp

Hi, That's great, and I did not know this was possible, as I did not see that thread when I searched the archives. Do you know of any companies that take your board outline and will design a palette to hold it through the printing, smt loading and

Generating pick and place file in GC-Powerplace

Electronics Forum | Sat Sep 29 19:04:13 EDT 2012 | e_music

Hello, I have just installed the demo version of GC-Powerplace. Could anyone here walk me through the process to generate pick and place file from gerbers? I don't have solderpaste layer. All I have got is signal layers (top/bottom), soldermask, sil

SOT23s and paste + glue

Electronics Forum | Mon Dec 22 11:09:21 EST 2008 | mfcat

We changed paste manufacturers rather recently and are now seeing SOT23s falling off after wave solder. These parts have a dual process... we stencil print paste, apply glue, populate then reflow. Only SOT23s fall off, chips are fine. We do not be

Solder Paste and fine pitch components

Electronics Forum | Wed Sep 18 12:31:16 EDT 2002 | dragonslayr

My suggestion is to conduct a Design For Manufacturing (DFM)study on the assembly in question. Pay particular attention to the pad sizes, component lead dimensions and satisfy yourself that those two factors are correct. Given that pads match compone

SMT on rig-flex and multi-flex boards

Electronics Forum | Fri Oct 22 11:53:53 EDT 2004 | C Lampron

Hi Christina, What would you be basing the yields off of? Is it solder defect, component placement, etc....? I have worked for a flex house for quite a few years. You are right. The Polyimide is very dimentionally unstable. (even more so on humid da

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