ATLAS-MAP: An Automated Test Station for Gated Electronic Transport Measurements

Amber Walton; Michael Manno; Paul J Dauenhauer; C Daniel Frisbie; Daniel McDonald

doi:10.1021/acsmeasuresciau.4c00034

ATLAS-MAP: An Automated Test Station for Gated Electronic Transport Measurements

ACS Meas Sci Au. 2024 Sep 27;4(6):659-667. doi: 10.1021/acsmeasuresciau.4c00034. eCollection 2024 Dec 18.

Authors

Amber Walton^{1

2}, Michael Manno¹, Paul J Dauenhauer^{1

2}, C Daniel Frisbie^{1

2}, Daniel McDonald^{1

2}

Affiliations

¹ Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Ave. SE, Minneapolis 55455, Minnesota, United States.
² Department of Chemical Engineering and Materials Science, Center for Programmable Energy Catalysis, University of Minnesota, 421 Washington Ave. SE, Minneapolis 55455, Minnesota, United States.

Abstract

The diversification of electronic materials in devices provides a strong incentive for methods to rapidly correlate device performance with fabrication decisions. In this work, we present a low-cost automated test station for gated electronic transport measurements of field-effect transistors. Utilizing open-source PyMeasure libraries for transparent instrument control, the "ATLAS-MAP" system serves as a customizable interface between sourcemeters and samples under test and is programmed to conduct transfer curve and van der Pauw methods with static and sweeping gate voltages. Zinc oxide transistors of variable thickness (5, 10, and 20 nm) and channel size (50 μm to 3 mm, of equal length and width) were fabricated to validate the design. Standardization of testing procedures and raw data formatting enabled automated data analysis. A detailed list of parts and code files for the system are provided.