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  • The SMTA Capital Chapter to Host a Meeting on November 7th at ZESTRON Americas

The SMTA Capital Chapter to Host a Meeting on November 7th at ZESTRON Americas

Oct 05, 2017

The SMTA Capital Chapter is pleased to announce its third meeting of 2017 on November 7th, scheduled from 5:30 pm to 8:00 pm at ZESTRON Americas, 11285 Assett Loop, Manassas, VA, 20109. Ravi Parthasarathy, Senior Application Engineer, ZESTRON Americas, will present “Cleaning Before Conformal Coating” and “pH Neutral Cleaning Agents - Market Expectation and Field Performance”.

Cleaning Before Conformal Coating - Do you conformally coat your electronic assemblies? If so, cleaning prior to conformal coating is a must to ensure the long-term reliability of your products. This webinar provides an overview of potential failure mechanisms resulting from coating over residues.

pH neutral Cleaning Agents – Market Expectation & Field Performance - With regard to precision cleaning applications within electronics manufacturing, pH neutral product development was a major breakthrough in recent years. The impetus for this development resulted from changes with regard to solder paste formulations and resulting assembly processes.

The greater use of lead-free solder paste and the required higher reflow profiles have resulted in even more difficult to remove burnt-in flux residues. Coupled with increases in component density, larger component packages, higher lead counts, finer lead spacing, and lower standoff distances, effective cleaning is greatly challenged. The aqueous alkaline based cleaning agents can effectively remove these flux residues, however, the process often requires an increase in wash temperature and exposure time, chemical concentration, and mechanical energy. Although an efficient and effective cleaning process can be developed, oftentimes, the required operating parameters present a new set of challenges with regard to material compatibility.

Since their introduction, the newly developed pH neutral formulations have proven to be capable not only of removing these difficult post reflow residues from complex board geometries, but do so without affecting material compatibility of sensitive components. Additionally, they perform at low concentration levels. This study reviews the performance of pH neutral cleaning agents as compared to alkaline cleaning agent alternatives and includes field data demonstrating their effectiveness with regard to material compatibility and cleaning performance.

The evening is scheduled as follows:

5:30-6:00 pm Registration, Networking & Dinner

6:00-7:30 pm Presentations

7:30-8:00 pm Facility Tour

Location:

ZESTRON Americas 11285 Assett Loop  Manassas, VA 20109 +1(703) 393-9880


Please join us for this networking, learning and dinner event. The registration fees are $15 for members and $20 for non-members. Any new member that joins the chapter at this event can attend the next chapter meeting for FREE.

To RSVP, please click on the following link: https://www.smta.org/chapters/rsvp.cfm?BEE_ID=4303&BULK_EMAIL_NO=1


The SMTA membership is an international network of professionals who build skills, share practical experience and develop solutions in electronic assembly technologies, including microsystems, emerging technologies, and related business operations. For more information or to join, please visit www.smta.org.

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