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Happy’s Tech Talk #28: The Power Mesh Architecture for PCBs

05/07/2024 | Happy Holden -- Column: Happy’s Tech Talk
A significant decrease in HDI substrate production cost can be achieved by reducing the number of substrate layers from conventional through-hole multilayers and microvia multilayers of eight, 10, 12 (and more), down to four. Besides reducing direct processing steps, yield will increase as defect producing operations are eliminated.

Quiet Power: The Effect on SI and PI Board Performance

01/18/2024 | Istvan Novak -- Column: Quiet Power
In signal and power integrity (SI and PI), we would ultimately like to see a reasonable agreement between the predicted or simulated and the measured performance of our circuits. Real-world measurements will always contain errors and usually show a distorted replica of the true behavior of the device under test (DUT). Real measurements always show more than just the behavior of the DUT. Even if we don’t consider random noise and random errors, in the measured data we have contributions from instrument, cable, and probe errors (just to name a few) that our calibration could not completely remove.

Connect the Dots: Five Best Practices for Designing Flex and Rigid-flex PCBs

01/09/2024 | Matt Stevenson -- Column: Connect the Dots
Flex and rigid-flex PCBs represent exciting technology for designers. Suddenly, boards no longer need to exist along one plane—or along a flat plane at all. Designs can now conform to specific shapes or be bent during use, opening new possibilities for applications with space constraints or flexibility requirements.

Connect the Dots: Controlled Impedance and Calculations for Microstrip Structures

12/28/2023 | Matt Stevenson -- Column: Connect the Dots
Modern high-speed and RF PCB design is an exciting field but comes with its own set of challenges. Signal integrity, performance, and crosstalk become major concerns. Designers for these types of projects need to learn how to control electromagnetic interference (EMI) and compatibility (EMC), which means utilizing some interesting math and calculations.

#PurpleLightUp: AT&S Sets a Signal for Inclusion

12/04/2023 | AT&S
The International Day of Persons with Disabilities celebrates the important contributions made by people with disabilities in professional and private life.
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