negative-tone development

initialism: NTD
https://doi.org/10.1351/goldbook.09544
Process for revealing the latent image in a resist in which the exposed regions are less soluble in the developer than the unexposed regions.
Source:
PAC, 2020, 92, 1861. 'Terminology of polymers in advanced lithography (IUPAC Recommendations 2020)' on page 1882 (https://doi.org/10.1515/pac-2018-1215)