Electronics Forum: design (Page 159 of 537)

Good Manual Printer for Large Boards

Electronics Forum | Thu Dec 04 13:16:58 EST 2008 | grantp

Hi, Just checked with the manufacturer of that printer, and they cannot to the larger size. Shame, as it looked like a really good design. Anyone know of any other brands? Grant

Hot Bar Soldering

Electronics Forum | Mon Dec 22 10:24:06 EST 2008 | ck_the_flip

Yes I agree with Emil that the Jig/Fixture design is crucial for alignment. The hot-bar machine I worked with came with a digital camera and monitor to aid with alignment. Other than that, the right profile (heat, pressure and dwell), and a good fl

SN100C alloy positive and negatives

Electronics Forum | Mon Dec 22 12:27:41 EST 2008 | evtimov

What I know for SN100 - it is designed for selective sodering. I beleave it is more expensive, compared to other alloys. Emil

data tracking software

Electronics Forum | Mon Jan 19 10:23:05 EST 2009 | davepick

Try http://www.KwikTic.com Designed exactly to log defects for PCB assembly - also doe mechanical parts. Regards, Denise

Damaged Components by Reflow Process (Process Window)

Electronics Forum | Mon Feb 09 10:39:20 EST 2009 | slthomas

Bingo. Or, work with the product designers to incorporate component processing temperature limits into their product specifications. After all, they ARE the ones that generate the BOM, right? Yeah, I know....good luck with that.

Flexa Prog query

Electronics Forum | Tue Mar 17 16:43:26 EDT 2009 | gregf912

AJ, you are making this harder than it realy is. Import the cad file with the BOM. Then use the panalize function built into Flexa to step and repeat for block 2 and 3. The ref. designators will be tied to each block (board).

Dummy Parts for Gold Wire Bonding for Practice

Electronics Forum | Wed Mar 11 10:55:07 EDT 2009 | gpost

I had contacted the dummy component suppliers but they didn't have anything that would work. We designed a simple daisy-chain PCB and die for SPC and training purposes, and purchased large quantities.

Unknown Reference Designator

Electronics Forum | Wed Mar 18 17:41:15 EDT 2009 | gregf912

Chris, Go to IBE and get the LCD monitors. The kit fits the CP6 and the resolution is much better that tne factory ones.

0402 tombstones

Electronics Forum | Tue Apr 21 16:33:06 EDT 2009 | llaerum

Home plate design is great for avoiding beads and tombstoning in some cases, but it will not help you when the spacing is too far apart. It will make it worse. You need a good even screen and accurate placement.

What is the preffered spacing between PTH and SMT pads

Electronics Forum | Mon Apr 27 02:44:07 EDT 2009 | michafogel

Can someone point me to a standard, if there is any, or design rule regards with preffared spacing between PTH and SMT pads for LF wave soldering process (SAC alloy)


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