Title: positive-tone development Long Title: IUPAC Gold Book - positive-tone development DOI: 10.1351/goldbook.09556 Status: current Definition Process for revealing the latent image in a resist in which the exposed regions are more soluble in the developer than are the unexposed regions. Related Term - resist: https://goldbook.iupac.org//terms/view/09564 Source - PAC, 2020, 92, 1861. 'Terminology of polymers in advanced lithography (IUPAC Recommendations 2020)' on page 1884 (https://doi.org/10.1515/pac-2018-1215) Other Outputs - html: https://goldbook.iupac.org/terms/view/09556/html - json: https://goldbook.iupac.org/terms/view/09556/json - xml: https://goldbook.iupac.org/terms/view/09556/xml Citation: Citation: 'positive-tone development' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.09556 License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. Accessed: 2026-06-28T14:34:12+00:00