Electronics Forum | Fri Jul 22 07:21:14 EDT 2005 | Mark
Try using Cobar`s anti-tombstone alloy.
Electronics Forum | Tue Jul 05 15:21:46 EDT 2005 | russ
So your thermal cycling test is putting these solder joints into reflow (183C + if they are lead joints)? Must be quite the test! Tell us what pad sizing and spacing you are currently using.
Industry News | 2013-01-07 17:13:26.0
ZESTR is pleased to announce the first installment of ZESTRON @cademy’s 2013 free-of-charge 10-part Cleaning Webinar Series titled “Why Clean PCBs.” ON,
Industry News | 2011-10-25 00:16:12.0
KIC announces that Martin Lopez will discuss how to fix reflow- and wave-related defects as well as how to avoid them at the upcoming Technical Forum, hosted by the SMTA Guadalajara Chapter.
Technical Library | 2012-11-29 14:23:58.0
1000 units per day) production environment presents challenging technical, logistic and cost obstacles that are usually more complex than those encountered at the inspection (automated optical inspection) and the manufacturing process test step (in-circuit test).
Technical Library | 2017-05-04 17:35:01.0
Most of today's printed circuit board base materials are anisotropic and it is not possible to use a simple method to measure thermal conductivity along the different axis, especially when a good accuracy is expected. Few base material suppliers' datasheet show X, Y and Z thermal conductivities. In most cases, a single value is given, moreover determined with a generic methodology, and not necessarily adapted to the reality of glass-reinforced composites with a strong anisotropy.After reminding of the fundamentals in thermal science, this paper gives an overview of the state-of the art in terms of thermal conductivity measurement on PCB base materials, and some typical values. It finally proposes an innovative method called transient fin method, and associated test sample, to perform reliable and consistent in plane thermal conductivity measurement on anisotropic PCB base materials.
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Nordson ASYMTEK | https://www.nordson.com/en/divisions/efd/blog/121019-how-to-prevent-air-bubbles-from-causing-piston-bounce
that’s not thawed properly high-speed dispensing of thick paste In this article, we will dive into each of these causes of piston bounce and explain how to prevent them