Industry Directory | Manufacturer
XPCB is a PCB manufacturer with superior expertise in multilayer rigid-flex PCB and flex PCB, supporting special technology including VIPPO, stacked vias, buried vias, blind vias, unsymmetrical structure, and air gap structure.
Industry Directory | Marketing Agency / Recruiter / Employment Company
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The DV-03 is a air-actuated balanced spool valve for consistent dispensing of high viscosity fluids. For precision, you can control the amount of fluid dispensed by adjusting the fluid pressure, pulse time, and selecting the appropriate dispense tip
The PCB Footprint Expert is a powerful CAD library development tool powered by our own proprietary CAD LEAP Technology (Libraries Enhanced with Automated Preferences). It is packed with very powerful advanced library management features that cuts foo
Electronics Forum | Sun Feb 24 15:24:48 EST 2008 | davef
With such a low standoff [eg, 1-2 thou of solder], we doubt that you can clean under QFN, either. For more, search the fine SMTnet Archives to find threads like http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=19247
Electronics Forum | Sun Feb 24 10:15:41 EST 2008 | teamcanada
Issue cross talk \Stencil thickness recommendation? 3-4-5 mil Using manufactures recommended paste layout Water soluable vs No clean Paste. Any recommended publications? Only one found so far is Fairchild, recommend NC due to potential cleaning issue
Used SMT Equipment | In-Circuit Testers
Portable monitoring from 10 kHz to 3 GHz The Monitoring Receiver R&S EB200 from Rohde & Schwarz is ideally suited for military monitoring tasks and spectrum monitoring in line with ITU recommendations as well as for use in radio investigation servi
Used SMT Equipment | In-Circuit Testers
Rohde & Schwarz EB200 Miniport Receiver Portable monitoring from 10 kHz to 3 GHz The Monitoring Receiver R&S EB200 from Rohde & Schwarz is ideally suited for military monitoring tasks and spectrum monitoring in line with ITU recommendations a
Industry News | 2013-08-27 13:14:25.0
Baja Bid, a leading host for online SMT exchange auction events, is kicking off another sale of used SMT, assembly, and remanufactured SMT equipment.
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."
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
The PCB Footprint Expert is a powerful CAD library development tool powered by our own proprietary CAD LEAP Technology (Libraries Enhanced with Automated Preferences). It is packed with very powerful advanced library management features that cuts foo
BEST manufactures and designs SMT stencils-both metal and plastic film type. This video demonstrates our metal stencil laser. See more on stencils here: http://www.soldertools.net/categories/Metal-Stencils/
Events Calendar | Tue Jul 11 00:00:00 EDT 2023 - Tue Jul 11 00:00:00 EDT 2023 | Oshkosh, Wisconsin USA
Wisconsin Chapter In-Person Event: PCB Workshop and PCB Plant Tour
Events Calendar | Wed Sep 11 00:00:00 EDT 2024 - Wed Sep 11 00:00:00 EDT 2024 | Oshkosh, Wisconsin USA
Wisconsin Chapter In-Person Event: PCB Workshop and PCB Plant Tour
Career Center | Folsom, California, California USA | Engineering,Maintenance
Senior Electrical Engineer Base Salary: $85-120K Full Benefits Bonus-Yes Relocation Assistance: Yes Interview Travel: NO * 5-7 years experience * Bachelors Degree *Travel: Occasionally Provide electrical engineering support to Operations, Developme
Career Center | Glendale Heights, Illinois USA | Engineering,Production
Surya Electronics inc seeks a professional, innovative and detailed individual for our Process Engineer position. If you are looking for an opportunity to work in a fast-paced, manufacturing facility, then this challenging position is for you! Respo
Career Center | Fremont, California USA | Engineering,Production
4 years of PCB assembly process.
Career Center | Poplar Grove, Illinois | Engineering,Production,Quality Control,Technical Support
Please see resume.
The Effect of Coating and Potting on the Reliability of QFN Devices. Online Version SMTnet Express, August 28, 2014, Subscribers: 23150, Members: Companies: 14012, Users: 36727 The Effect of Coating and Potting on the Reliability of QFN Devices
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/efd/contact-us/equipment-recommendations
Equipment Recommendations | Nordson EFD Nordson EFD Corporate | Global Directory | Languages Division Only All of Nordson Home Products Accessories
| https://www.eptac.com/wp-content/uploads/2012/06/eptac_07_18_12.pdf
