ZESTRON’s Terry Price will be Presenting at SMTAI


Reading time ( words)

ZESTRON is pleased to announce that Terry Price, PhD will be presenting, “pH Neutral Cleaning Agents: Technology and Performance” with Axel Vargas of Lockheed Martin at SMTA International on September 24.

Presentation/Paper Abstract:

Effective electronic assembly cleaning is greatly challenged due to component miniaturization, larger component packages, higher lead counts, reduced conductor spacing, tighter pitch and lower standoffs. Added to these geometry challenges, greater use of lead-free solder paste and the increasing trend of multiple thermal cycles result in difficult to remove burnt-in flux residues. However, these challenges are overcome with the use of engineered aqueous-based cleaning agents.

Modern cleaning agents can be alkaline or pH neutral depending on the degree of solvency required. Each are environmentally friendly as they are biodegradable and HAP free. However, in addition to excellent material compatibility and ease of handling, pH neutral formulations have the added advantage of potentially eliminating the need for waste water neutralization.

Effective cleaning processes require an optimized balance of mechanical, thermal, and chemical energy. Cleaning agents provide the chemical energy. As electronic assemblies are completely washed with the cleaning agent, the cleaning agents are formulated with inhibition packages in order to ensure effective material compatibility with the substrate and component materials. To maintain a stable pH value throughout the life of the wash solution, pH neutral cleaning agent formulations contain buffering packages preserving the pH level as flux residues accumulate with the wash solution.

Along with Dr. Price’s presentation, ZESTRON will be exhibiting at booth #623. Please visit us to discuss cleaning solutions applicable to your electronics engineering or manufacturing process.

Share

Print


Suggested Items

This Month in SMT007 Magazine—Continuous Improvement: As Simple as X = Xc – 1

01/04/2021 | I-Connect007 Editorial Team
X=Xc – 1 is a conceptual equation for continuous improvement. You define X and work to reduce it by a factor of 1. This could be one work hour, one process step, one day less in a cycle, and so on. We recently met with Dr. Ron Lasky to discuss the concept of X=Xc – 1 and get his advice on generating enthusiasm among readers and the next generation about continuous improvement. As this discussion illustrates, many process improvements are small in scale, not yearlong, major efforts.

Top 10 Most-Read SMT Articles of 2020

12/31/2020 | I-Connect007
As 2020 comes to a close, the I-Connect007 Editorial Team takes a look back at its most read articles. Here are the top 10 reads in SMT from the past year.

SMTA Europe Solder Finish Webinar Addresses Defects Causes and Cures

12/14/2020 | Pete Starkey, I-Connect007
“What is your most common PCB problem?” A survey conducted by Bob Willis had revealed finish solderability to be the predominant contender, and it was clear that the choice of solderable finish applied to surface mount boards could have a significant effect on the assembly yield and cost of the final circuit. SMTA Europe organised an informative and enlightening webinar this month entitled “Guide to PCB Solder Finishes—Process Defects Causes and Cures,” with soldering specialist Bob Willis as presenter.



Copyright © 2021 I-Connect007. All rights reserved.