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.

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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Lead Free 2015

It is hard to believe that in July we will celebrate the 9th anniversary of the advent of RoHS. So the timing seemed right when I was recently asked to speak at the Boston SMTA Chapter on The Status of … Continue reading

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Alloy Melting

Folks, Richard asks: Dear Dr. Ron, Recently we had a solderability problem with tin-finished component leads and SAC305 solder paste.  One of our engineers claimed that the problem was that the tin finish melts at too high a temperature (Tm= … Continue reading

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Wave Soldering is Here to Stay

Patty was just getting ready to leave her office for a bi-weekly luncheon with the Professor, Pete, and Rob. They had regular meetings like this to discuss new technical topics or to review books. It was Patty’s turn to take … Continue reading

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