Flexible Thinking: Rules of Thumb: A Word to the Wise
Happy’s Tech Talk #29: Bend-to-Install Semi-flex FR-4
Connect the Dots: Five Best Practices for Designing Flex and Rigid-flex PCBs
Happy’s Essential Skills: Design of Experiments
March 17, 2016 | Happy HoldenEstimated reading time: 9 minutes
If you are new to DOE and would like to read more, there are very good primers at Six Sigma Tools and Templates, MoreStream.com, and ASQ.com: What is Design of Experiments (DOE)? If you have downloaded the “Engineering Statistical Handbook” and software mentioned in my second column, then you can go to Sections 1.3.3.12 or 4.3.1 “What is design of experiments (DOE)?” and practice the case studies.
If you take advice from others, then the one thing you should do is to download the Engineering Statistics Handbook and software from NIST: http://www.itl.nist.gov/div898/handbook/stoc.htm.
I cannot guarantee that it will be available for long, so take advantage of it now. Next, read the Handbook and do the case studies to learn more about engineering statistics—the time will be well spent! Even if you have statistical software at work, your next job may not. Download DATAPLOT and you will have one at home. Additional articles and references are at the end of this column.
References and Further Reading
1. NIST/SEMATECH e-Handbook of Statistical Methods
2. Plackett, R.L., and Burman, J. P. “The Design and Optimum Multifactorial Experiments,” Biometrika, Vol. 33, pp 305–325 (1946).
3. Vandenbrande, Willy. Shainin: A Concept for Problem Solving, Shainin Conference, Amelior Hotel, Dec. 2009.
4. Murphy, Thomas, Jr. “Design and analysis of industrial experiments,” Chemical Engineering, June 6–1977, pp.168–182.
5. Feller, J. “Design experiments that control two or more variables at once,” Industrial Research & Development, July 1983, pp 94–95.
6. Geremia, J.O. “Test Less, Learn More,” Machine Design, Sept. 8, 1977, pp 110–115.
7. Anderson, L.B. “How to Apply Statistics In Design of Experiments,” Chemical Engineering, Aug.5, 1963, pp 113–116.
8. Anderson, L.B. “Factorial Design of Experiments,” Chemical Engineering, Sept. 2, 1963, pp 99–105.
Happy Holden has worked in printed circuit technology since 1970 with Hewlett-Packard, NanYa/Westwood, Merix, Foxconn and Gentex. Currently, he is the co-editor, with Clyde Coombs, of the Printed Circuit Handbook, 7th Ed. To contact Holden, click here.
Page 3 of 3Share on:
Suggested Items
HPC Customer Engages Sondrel for High End Chip Design
11/25/2024 | SondrelSondrel, a leading provider of ultra-complex custom chips, has announced that it has started front end, RTL design and verification work on a high-performance computing (HPC) chip project for a major new customer.
Rules of Thumb for PCB Layout
11/21/2024 | Andy Shaughnessy, I-Connect007The dictionary defines a “rule of thumb” as “a broadly accurate guide or principle, based on experience or practice rather than theory.” Rules of thumb are often the foundation of a PCB designer’s thought process when tackling a layout. Ultimately, a product spec or design guideline will provide the detailed design guidance, but rules of thumb can help to provide the general guidance that will help to streamline the layout process and avoid design or manufacturing issues.
PCB Design Software Market Expected to Hit $9.2B by 2031
11/21/2024 | openPRThis report provides an overview of the PCB design software market, detailing key market drivers, challenges, technological advancements, regional dynamics, and future trends. With a projected compound annual growth rate (CAGR) of 13.4% from 2024 to 2031, the market is expected to grow from USD 3.9 billion in 2024 to USD 9.2 billion by 2031.
KYZEN to Spotlight KYZEN E5631, AQUANOX A4618 and Process Control at SMTA Silicon Valley Expo and Tech Forum
11/21/2024 | KYZEN'KYZEN, the global leader in innovative environmentally friendly cleaning chemistries, will exhibit at the SMTA Silicon Valley Expo & Tech Forum on Thursday, December 5, 2024 at the Fremont Marriott Silicon Valley in Fremont, CA.
Flexible Thinking: Rules of Thumb: A Word to the Wise
11/20/2024 | Joe Fjelstad -- Column: Flexible ThinkingIn the early days of electronics manufacturing—especially with PCBs—there were no rules. Engineers, scientists, and technicians largely felt their way around in the dark, making things up as they went along. There was a great deal of innovation, guessing, and testing to make sure that early guidelines and estimates were correct by testing them. Still, they frequently made mistakes.