Electronics Forum: via tent busters (143)

Via tent on both side of the PCB; Immersion Tin

Electronics Forum | Fri Oct 05 07:31:29 EDT 2001 | furrer

When tenting vias almost a few vias are not covered completly by Solder Mask. Does this one side open vias affect the Immersion Tin Process ? Do we get chemical residues in the vias ?

Via tent on both side of the PCB; Immersion Tin

Electronics Forum | Sat Oct 06 08:27:24 EDT 2001 | davef

Yes, some solder masks do not tent well, because the material is too thin. That�s the trade-off. Thin masks: * Conform well to [don't bleed onto] fine pitch features. * Tent vias poorly, requiring an additional "plugging" step. As you imply, if th

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Industry News: via tent busters (7)

What's usage of Via tenting for PCB design?

Industry News | 2019-11-05 22:07:01.0

Tenting a via refers to covering via with soldermask to enclose or skin over the opening. A via is a hole drilled into the PCB that allows multiple layers on the PCB to be connected to each other. A non tented via is just a via that is not covered with the soldermask layer. Leaving these vias exposed or covered has pros and cons depending on the your design and manufacturing requirements.

Headpcb

Via Tent-Holes with Solder Mask

Industry News | 2018-10-18 10:40:04.0

Via Tent-Holes with Solder Mask

Flason Electronic Co.,limited

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Technical Library: via tent busters (1)

PCB vias design recommendation

Technical Library | 2019-05-29 01:47:22.0

1.Vias near SMD pads: Solder can flow into the via after melted. As a result cold joint will appear in the end. Check the picture below. 2.Vias on SMD pads: Solder can flow into the via more easier after melted. Check the picture below. 3.Via opening without soldermask covered. When workers solder TH parts by hand, soldering iron can touch vias sometime, then tiny amounts molten solder will stay on vias. This can lead to electrical short easily. We recommend you make all vias tenting (covered by solder mask) if it is possible.

PCBNPI-Professional PCB Fab/PCB Assembly Service Provider From China

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Express Newsletter: via tent busters (144)

Partner Websites: via tent busters (6)

How Challenging Conventional Wisdom Can Optimize Solder Reflow

Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2018/07/00600-248.pdf

. The typical form for such a profile, Figure 1b, is commonly referred to as a “tent” or “straight ramp” profile. For no- clean pastes, which have less active fluxes, excessive dwell time serves only to deplete the flux before reflow

Heller Industries Inc.

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