Electronics Forum: in chromatography (3)

Looking for ionic contamination test lab in Taiwan

Electronics Forum | Wed Feb 04 21:06:07 EST 2009 | shan

I'm looking for test labs in Taiwan that are capable of performing ionic contamination testing on small to medium sized SMT boards. I'm interested in both ion chromatography and ROSE test methodologies. Is anyone aware of any labs performing contami

Necessity of ROSE in commercial quality processes

Electronics Forum | Mon Feb 27 13:02:13 EST 2006 | masrimhd

Hi, Thank you for your answers. But I want to explain some points on which I would appreciate any comment: * Having calibrated the process, we intend to carry out the ROSE test just on SAMPLES of the finished boards. Lets say one every hour. I exp

Industry News: in chromatography (1)

STI Announces Marietta Lemieux’s Selection as Presenter at “Electronics in Harsh Environments Conference”

Industry News | 2018-02-20 17:58:44.0

STI Electronics is pleased to announce that Marietta Lemieux, Analytical Lab Manager, will present at the Electronics in Harsh Environments Conference. The event is scheduled to take place April 24-26, 2018 in Hoofddorp (Amsterdam), Netherlands. The conference will focus on building reliable electronics used in power electronics and harsh environments.

STI Electronics

Technical Library: in chromatography (3)

Contamination Profile of Printed Circuit Board Assemblies in Relation to Soldering Types and Conformal Coating

Technical Library | 2017-12-11 22:31:06.0

Typical printed circuit board assemblies (PCBAs) processed by reflow, wave, or selective wave soldering were analysed for typical levels of process related residues, resulting from a specific or combination of soldering process. Typical solder flux residue distribution pattern, composition, and concentration are profiled and reported. Presence of localized flux residues were visualized using a commercial Residue RAT gel test and chemical structure was identified by FT-IR, while the concentration was measured using ion chromatography, and the electrical properties of the extracts were determined by measuring the leak current using a twin platinum electrode setup. Localized extraction of residue was carried out using a commercial C3 extraction system. Results clearly show that the amount and distribution of flux residues are a function of the soldering process, and the level can be reduced by an appropriate cleaning. Selective soldering process generates significantly higher levels of residues compared to the wave and reflow process. For conformal coated PCBAs, the contamination levels generated from the tested wave and selective soldering process are found to be enough to generate blisters under exposure to high humidity levels.

Technical University of Denmark

Tin Whiskering on PCBA Capacitors in Storage (Inside ESD Bag, Inside a Sealed Cardboard Box)

Technical Library | 2011-01-13 17:37:55.0

The tin whisker failures investigated in this paper were found on functional RoHS-compliant hardware. The samples were not conformal coated. This paper will document the conditions associated with the whisker formation under the following conditions; tin

Foresite Inc.

Events Calendar: in chromatography (2)

Practical Set-Up, Qualification of Cleaning Process in PCB Assembly

Events Calendar | Mon Jun 08 00:00:00 EDT 2020 - Mon Jun 08 00:00:00 EDT 2020 | ,

Practical Set-Up, Qualification of Cleaning Process in PCB Assembly

Surface Mount Technology Association (SMTA)

Practical Set-Up & Qualification of Cleaning Process in Modern PCB Assembly

Events Calendar | Tue Jun 16 14:30:00 EDT 2015 - Tue Jun 16 14:30:00 EDT 2015 | ,

Practical Set-Up & Qualification of Cleaning Process in Modern PCB Assembly

ASKbobwillis.com

Express Newsletter: in chromatography (3)

Partner Websites: in chromatography (1236)

Ion chromatography

ZESTRON Americas | https://www.zestron.com/sa/support-services/analytical-center/cleanliness-and-surface-qualification/ion-chromatography.html

Ion chromatography Contact us log in english - Americas english - Europe english - South Asia spanish - Americas deutsch français 中文 繁體中文 日本語 한국어 русский Analytic Services Cleaning Applications SMT Electronic Cleaning PCBA Cleaning Stencil and Screen Cleaning Maintenance and Tool Cleaning Power Electronics Cleaning Power Module Cleaning Leadframes

ZESTRON Americas


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