Electronics Forum: sub and control and panel (Page 1 of 1)

Time and temp in lead and lead-free reflow

Electronics Forum | Fri Aug 01 21:10:35 EDT 2008 | leo_dektec

You can keep only the 5th zone as the reflow zone. And lower the first two zones to keep a good ramping rate. Meanwhile,please note the ting temperature in software or control panel is not the exact temperature in your PCB, you'd better get a KIC or

Comparison between Vitech and Mirtec

Electronics Forum | Mon Jan 10 18:35:05 EST 2011 | eadthem

Ive used a Mirtec machine for 3 years MV3L with side angle inspection. Mirtec has some issues documentation, and repair plus. But there machine is impressive and the AOI software is good. We can find about 90-99.99% of all errors using just the 5

Re: BGA and Gold Boards

Electronics Forum | Thu Jun 25 09:53:04 EDT 1998 | Earl Moon

| | Has anyone had experience with placing BGA on gold plated boards. I thought I read a while ago there was a problem with embrittlment causing cracked joints. If anyone has experience with this your feedback would be great. | | Mike | Mike, | You

Pick and Place vs CAD File

Electronics Forum | Sat Sep 23 21:52:51 EDT 2017 | jlawson

In most cases PnP files are all that is needed for SMT program generation. BUT, it depends on origin reference of this data as exported to PnP and could be off in X,Y and rotation of image pending when PnP Data is exported. Also Rotation of parts

Solder Paste and fine pitch components

Electronics Forum | Thu Sep 19 11:14:45 EDT 2002 | Jim M.

We had lots of problems with bridging on 15.8mm pitch, QFP17-160 at the start.The board was .032 thick, double sided-six boards to a panel. Here is the problems (not neccessarily in the biggest to little but as i remember them) and solutions that he

No solder and solder bridge after Wave solder machine

Electronics Forum | Thu Nov 17 21:46:48 EST 2005 | C. Kolokoy

With DIP type components, a sub-par fluxing method (foaming a no-clean), and a chip wave where one is not needed are formulas for bridging and insufficient wetting. If you have SMD's on the wave solder side of the board greater than 0603, and no SOT

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