New SMT Equipment: tented vias (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: tented vias (141)

Using LPI w/ tented vias

Electronics Forum | Fri Jun 09 17:34:08 EDT 2000 | Melanie Mulcahy

I need some information regarding the acceptability/unacceptability of using tented vias with LPI soldermask. Long story on all involved, but basically I have a board that I have had manufactured with no problems which has BGA/uBGA parts, tented via

Cracked vias

Electronics Forum | Sun Dec 15 22:31:43 EST 2002 | craigj

Has anyone heard of vias cracking (barrel from pad) when being wave soldered. Was told this was a big problem by contract pcb designer, he always tent vias because of this. The reason was that the solder filling the vias caused stressing and then sep

Industry News: tented vias (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: tented vias (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: tented vias (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: tented vias (19)

PCB Libraries Forum : Blind Via With Smaller Solder Mask Opening

PCB Libraries, Inc. | https://www.pcblibraries.com/forum/RSS_blind-via-with-smaller-solder-mask-opening_topic1110.xml

? Possible to send the contact please. Many thanks. Best Regards,NB. Blind Via With Smaller Solder Mask Opening : All vias under BGA's need... Author: Tom HSubject: 1110Posted: 18 Sep 2013 at 7:04pmAll vias under BGA's need to be "Tented" with solder mask to prevent solder bridging under the component

PCB Libraries, Inc.


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