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Overcome the Challenges of Using Sub-Milliohm SMD Chip Resistors

Feb. 8, 2023

This two-part series delves into sub-milliohm SMD chip resistor design issues.

Stephen Oxley

Related To: TT Electronics

This article is part of the TechXchange: Challenging Resistors

What you’ll learn (Part 1):

How to treat sub-milliohm chips as a separate class of component.
Strategies to avoid pitfalls during component selection and PCB layout design.
Uncover opportunities to quantify and minimize error and variation at every stage.

What you’ll learn (Part 2):

How to set up fixturing according to manufacturer guidelines, establishing a capable test system.
How to ensure close control of assembly processes like solder-paste application and pick-and-place.
Uncover opportunities to quantify and minimize error and variation at every stage.

The first part takes a deep dive in the use of SMD resistors and PCB layout strategies. The second part of the series addresses additional stages, including verification of the ohmic value of unmounted components and critical assembly processes.

About the Author

Stephen Oxley | Business Development Engineer, Fixed and Variable Resistors, Sensors and Specialist Components division, TT Electronics

Stephen Oxley is Business Development Engineer for the Fixed and Variable Resistors, Sensors and Specialist Components division at TT Electronics . He has a master’s degree in electrical and electronic engineering from Bath University, the U.K.