Electronics Forum: smt and inspection and improvement (Page 8 of 9)

Standard of PCB Bow and Twist in Incoming Inspecion

Electronics Forum | Thu Feb 27 12:27:10 EST 2003 | stevel

Hi all, We got some bare pwb in our incoming inspecion looked really wrapped. The maximum twist of the pwb we messured is 0.056inch by following the method in IPC-TM-650 2.4.22 C. (The diagonal size of our pwb is 7.5inch) According to the IPC standa

Pick and place machine for small productions. Any suggestions?

Electronics Forum | Thu Sep 19 12:29:57 EDT 2013 | deanm

What is your plan/budget for your reflow oven and paste printer? Those are equally important as a placement machine. Have you factored in other costs of in-house assembly such as inspection, moisture sensitive device storage, rework tools, cleaning p

Need low cost pick and place machine for limited production

Electronics Forum | Tue Aug 11 17:36:44 EDT 2009 | dyoungquist

You are looking for a complete SMT assembly line plus possible X-Ray inspection and rework equipment. The 3 components of the SMT line are stencil printer, pick-n-place machine and reflow oven. How small are your components? 0603? 0402? What is the

Re: SMT training classes and start up equipment

Electronics Forum | Tue May 05 13:44:57 EDT 1998 | Mark Mitchell

Mr. Desrochers; Philips EMT Americas offers a three day course entitled, "Introduction to SMT Manufacturing". The course addresses all major factors that influence the automated SMT assembly process. Topics that are discussed in the course are list

Re: Standard pad sizes for reflow and wave

Electronics Forum | Fri Sep 03 14:37:45 EDT 1999 | JohnW

| | We've noticed that there are many different recommendations for pad sizes for various SMT parts. This seems to vary wildly from manufacturer to manufacturer for the same case sizes. Is there any standards that can used used to specify these siz

Re: Standard pad sizes for reflow and wave

Electronics Forum | Mon Sep 06 19:59:59 EDT 1999 | armin

| | | We've noticed that there are many different recommendations for pad sizes for various SMT parts. This seems to vary wildly from manufacturer to manufacturer for the same case sizes. Is there any standards that can used used to specify these s

Contamination/process issues of SMT and wave soldered pcb's

Electronics Forum | Fri Jul 04 09:10:53 EDT 2003 | davef

With poorly cured mask: * Wave soldering: Expect to see thin wavy band of dross imbedded in the mask in the wave solder side. * Reflow soldering: Expect to see a pinto board where the two tones of mask are [1] normal color and [2] a lighter color, al

When to implement high speed pick and place machines?

Electronics Forum | Tue Feb 04 21:07:16 EST 2014 | sarason

You should ask yourself a bunch of questions before you consider going down this path. The first being where are the bottlenecks in your existing line and is there anything you can do to eliminate or decrease there bottleneckness (made up word). I

How to Differentiate Class 3 and Class 2 products in terms of process

Electronics Forum | Tue Dec 30 09:31:52 EST 2014 | rgduval

I've always approached it like this: Design your processes and perform your work to class three standards, and inspect to the standard that is acceptable. That is, all work should be performed to the highest degree of quality. When the work is ins

Buying 1 or 2 Post reflow AOI and 1 Pre reflow AOI

Electronics Forum | Fri Nov 06 07:46:33 EST 2015 | clampron

Good Morning RedChilli, I have worked with Mirtec for quite a few years. I have looked at some of the other machines mentioned but have no practical experience with them. I started with the Mirtec MV-2 (long ago)due to the success of this platform,


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