Electronics Forum: coplanarity of qfn leads (Page 1 of 1)

Re: IC leg of RF unit lifted..

Electronics Forum | Thu Jun 29 11:08:55 EDT 2000 | Dave F

Kok Han: Good to hear from you. Please help us understand you situation better by talking more about: � Component IC of the RF unit (IC101). For instance: SMT / PTH, package, pitch, lead material, lead finish, package type, package weight, coplan

How to improve the solder quality of QFN?

Electronics Forum | Fri Jun 24 07:02:35 EDT 2005 | davef

Problem 1: Solder shortage * Stencil aperatures [except the heat slug] should be 1:1 with the board. * Stencil should be 5 thou thick laser cut. * Board should be 1:1 with the component * Print should look good. Problem #2: Bad connection between p

Line release of post reflow AOI and AXI

Electronics Forum | Mon Sep 22 17:02:58 EDT 2008 | hegemon

You are on the right track Ismir. Essentially however, as the programmer of the machine, I am the one that creates the PCB with the errors to benchmark the settings for the machine. No secret lab though! :-) Easy enough for most any AOI machine to

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