"barrels" search results in the Electronics Forums

276 results found for "barrels" in the Electronics Forums

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Supported holes, Solder, Vertical Fills, Hidden under connector body

Oct 12, 2018 | Feature||Class 1||Class 2||Class 3 Circular wetting of solder of the lead and plated hole barrel

Xray Analysis of non-BGA solder joints

Mar 16, 2017 | Voiding, fracturing, barrel-fill, I'm sure there are some I'm missing.

Does pot temperature affects quality of the solder joints?

Feb 2, 2017 | Maybe increased barrel fill? Raising pot temps slightly seems to increase barrel fill at selective s

Thermal relief question

Jun 11, 2016 |

Thermal relief question

Jun 8, 2016 | We all know that whenever possible, we want thermal relief between the barrel/pad and the copper foi

Is this a defect?

Dec 19, 2015 |

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

Jan 10, 2015 | > class 3 requires 100% barrel fill Class 3 requires 75% vertical fill of solder for componen

THM Solder barrel fill issues on 93 mils board

Aug 21, 2013 | I am having solder barrel fill issues on THM component, we follow, we follow IPC 610 E requirement.

Wave Solder Question

Jul 30, 2013 | How full is the barrel actually getting? Per IPC-A-610, 100% fill is the target but 75% fill is acc

Black stain... what causes it?

Jan 25, 2013 | My first guess is that the plating in the barrel (via) has failed and allowed laminate/epoxy egress

Shorts & Dry Joints

Aug 7, 2012 | It looks like the inside of the barrels on these holes are not plated. Check some raw PCBs and see.

Wave Solder question

Jun 1, 2012 | Perhaps apply the through hole part, solder mask only one barrel. Then hand solder that single leg.

rigid-Flex board via problems

Jan 12, 2012 | How are the vias failing? Barrel crack?

Selective Soldering - Barrel Fill

Oct 15, 2010 | Well, we got the baking part right at least. I would think that would help to rule out the barrel

Black Barrel - Wave solder defects

Aug 24, 2010 | We are experiencing a high incidence of what we call "black barrel" (to differentiate from black pad

Barrel fill with Pb Free Wave Solder

Dec 10, 2008 | Are there any good solutions for getting good barrel fill on PTH boards using Pb Free solder and No

SN100C Selective Solder Voiding

Nov 8, 2008 | SN100 was designed for selective soldering and producing low levels of voiding. But thin barrel plat

Paste in hole question

Aug 18, 2008 |

RoHS PCB Questions

Nov 19, 2007 | Bruce, Does the thicker barrel plating for "RoHS-Rated" PCBs alleviate some of the copper dissolu

Voids in thru-hole solder joints

Nov 13, 2007 | This processes has the potential to cause barrel cracking and pad lifting, because the heating is ve

PCB Through Hole Size for Lead Free

Nov 8, 2007 | Did the PTH barrel ends in massive copper clad ? If yes this type of poor thermal layout topside he

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Voidless Reflow Soldering

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