New SMT Equipment: tent via (4)

High Frequency PCB

High Frequency PCB

New Equipment | Assembly Services

High Frequency PCB Material: SYTECH Layer Count: 4 layers PCB Thickness: 1.6mm Min. Trace / Space Outer: 0.1mm/0.1mm Min. Drilled Hole: 0.2mm Via Process: Tenting Vias Surface Finish: ENIG+OSP Product Features 1. DK needs to be tiny as well

NextPCB-Reliable Multilayer Boards Manufacturer

Thick-Copper PCB

Thick-Copper PCB

New Equipment | Assembly Services

Thick-Copper PCB Material: Fr-4 Layer Count: 4 layers PCB Thickness: 1.4mm Min. Trace / Space Outer: 0.065mm Min. Drilled Hole: 0.2mm Via Process: Tenting Vias Surface Finish: ENIG Product Features Features: 1) Years of experience in half-

NextPCB-Reliable Multilayer Boards Manufacturer

Electronics Forum: tent via (141)

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

Industry News: tent via (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

Technical Library: tent via (21)

Via Filling Applications in Practice

Technical Library | 2020-07-15 18:49:03.0

Via Filling • Through Hole Vias - IPC-4761 – Plugging – Filling – Filled & Capped • MicroviaFilling and Stacked Vias

Würth Elektronik GmbH & Co. KG

Fill the Void IV: Elimination of Inter-Via Voiding

Technical Library | 2019-10-10 00:26:28.0

Voids are a plague to our electronics and must be eliminated! Over the last few years we have studied voiding in solder joints and published three technical papers on methods to "Fill the Void." This paper is part four of this series. The focus of this work is to mitigate voids for via in pad circuit board designs. Via holes in Quad Flat No-Lead (QFN) thermal pads create voiding issues. Gasses can come out of via holes and rise into the solder joint creating voids. Solder can also flow down into the via holes creating gaps in the solder joint. One method of preventing this is via plugging. Via holes can be plugged, capped, or left open. These via plugging options were compared and contrasted to each other with respect to voiding. Another method of minimizing voiding is through solder paste stencil design. Solder paste can be printed around the via holes with gas escape routes. This prevents gasses from via holes from being trapped in the solder joint. Several stencil designs were tested and voiding performance compared and contrasted. In many cases voiding will be reduced only if a combination of mitigation strategies are used. Recommendations for combinations of via hole plugging and stencil design are given. The aim of this paper is to help the reader to "Fill the Void."

FCT ASSEMBLY, INC.

Express Newsletter: tent via (133)

SMTnet Express - June 27, 2019

SMTnet Express, June 27, 2019, Subscribers: 32,092, Companies: 10,819, Users: 24,882 Advanced Cu Electroplating Process for Any Layer Via Fill Applications with Thin Surface Copper Credits: MacDermid Inc. Copper-filled micro-vias are a key

Partner Websites: tent via (9)

The impact of poor insertion on solder mask for PCB through-hole copper and its solutions

| https://www.nextpcb.com/dfm-faq/PCB-poor-insertion

subsequent PCB manufacturing process. The through-hole is usually very small, with a diameter of less than 0.35 mm. When the solder resists clogging occurs, there is almost no solder resist oil left in the tent at the opening of the via, and there is a solder resist in the middle of the via or at the bottom of the


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