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Suggested Items

Rules of Thumb: A Primer

11/14/2024 | Andy Shaughnessy, Design007 Magazine
Many industry-wide rules of thumb are based on DFM constraints or formulas, but others are based on tribal knowledge. In this interview, Andy Shaughnessy sits down with our contributors Kris Moyer and Kelly Dack to discuss the role of rules of thumb, when to employ them, and when it’s time to do the math.

Elementary, Mr. Watson A Designer's Dilemma—Metric or Imperial Units?

11/07/2024 | John Watson -- Column: Elementary, Mr. Watson
In the early 1800s, as trains began to spread across the United States, different companies built their tracks in ways that made sense to them. They chose their track widths (gauges) with no set standard. Some tracks were about four feet wide, with others at five or even six feet. Each company thought their choice was best, but this led to a big problem: Trains from one track couldn't run on another if the gauges didn't match. Often, trains had to stop at the state line for all their goods and passengers to switch trains, which cost extra time and money.

One Partial HDI Technique: mSAP 

11/05/2024 | Andy Shaughnessy, Design007 Magazine
Chris Hunrath, vice president of technology at Insulectro, believes that mSAP just might be the trick for designers considering partial HDI. As Chris explains, the materials and equipment required for the mSAP process are easily available, and the process is well established. This could be a great option for designers working with BGAs that have a pitch of 0.5 mm or less.

Global PCB Connections: Mission Critical—Communication Between PCB Designers and Fabricators

10/24/2024 | Jerome Larez -- Column: Global PCB Connections
In my first column, I want to discuss the critical importance of communications between the PCB design and the PCB fabrication engineer. I’ll explore why clear communication is so important, highlight the differences between standard and CTQ items, and outline the key issues that must be agreed upon to achieve success in PCB manufacturing.

The Shaughnessy Report: Are You Partial to Partial HDI?

10/08/2024 | Andy Shaughnessy -- Column: The Shaughnessy Report
Sometimes, a little technology is all you need. Star Trek’s Borg character only needs a funky eyepiece contraption to access all The Collective’s data, like an outer space Wi-Fi. Like the Borg’s eyepiece, we may only need a little bit of HDI in one corner of the board. We might only need partial HDI.
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