Category Archives: Dr. Ron

Materials expert Dr. Ron Lasky is a professor of engineering and senior lecturer at Dartmouth, and senior technologist at Indium Corp. He has a Ph.D. in materials science from Cornell University, and is a prolific author and lecturer, having published more than 40 papers. He received the SMTA Founders Award in 2003.

To Minimize BTC Voiding, Start with the Right Solder Paste

Let’s see what’s up with Patty …. Patty was just dropped off at O’Hare airport after finishing a 3 day workshop on Lean Six Sigma statistics, design of experiments, and statistical process control. Interestingly, the students were lawyers. In recent … Continue reading

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BGA Voiding in Electronics Assembly

Patty had to admit that the last few weeks were exciting.  Her talk to US Army Rangers and Navy Seals on critical thinking went really well.  Now, the local newspaper was asking her to comment on political polling in the … Continue reading

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Voiding: A Critical Issue in Electronics Assembly

Folks, Looks like Patty and the team have a new assignment from Mike Madigan. Let’s look in …. Patty had just waved to her twin boys as they got on the school bus when her mobile phone rang.  The voice was … Continue reading

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Conclusion of In Electronics Manufacturing, Does Cpk =1 Yield 66,800 DPM?

Patty, Rob, and Pete were quite sure they understood the confusion in the Cpk = 1 issue, but wanted to make sure they discussed it with the Professor.  After a brief chat with him, they called ACME CEO Mike Madigan … Continue reading

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In Electronics Manufacturing, Does Cpk =1 Yield 66,800 DPM?

As Patty was walking past the Professor’s office on her way to see Pete and Rob, she decided to drop in. “Professor, I got the strangest phone call. A man claimed he had invented a machine that could create energy,” Patty … Continue reading

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Using the Coffin-Manson Equation to Calculate Thermal Cycles

Folks, Let’s look in on Patty and friends …. Patty, Rob and Pete were headed to their regular monthly meeting where they, along with the Professor, discussed a book they were all reading.  This month’s book was about General Leslie … Continue reading

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In SMT Assembly, Even 1 Second of Cycle Time Can Affect Profitability

Folks, Patty had just returned from SMTAI 2015. It was a sentimental meeting with the retirement of longtime executive administrator JoAnn Stromberg. At one of the technical sessions, Patty was especially interested in epoxy flux being used as an underfill. She … Continue reading

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Failure Rate Calculation

Folks, Let’s see how Patty, Rob, and Pete are doing helping Mike Madigan establish his Zero Defects program. “So let me see if I got this straight: if I want to establish that the defect rate is 1 per million … Continue reading

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The Rule of 3/N for Estimating Field Failure Rates

Folks, It looks like Patty is a bit troubled…. When she was younger, Patty was always annoyed by cranky old people, and now she was worrying that she might become one. The trigger making her cranky was what students know … Continue reading

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Phil Zarrow Weighs in on Productivity

Folks, I ran into good friend Phil Zarrow the other day. Phil, Jim Hall, and I developed the SMTA Certification Program. We ended up chatting a bit about productivity, one of my favorite topics. Ron: Phil, you have likely visited … Continue reading

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