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Selecting an HSQ Negative Resist for Precision Patterning

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Precision patterning requires a resist that can support the demands of electron beam lithography from coating through pattern transfer. HSQ negative resist is widely considered for high-resolution applications because its material behavior can support fine pattern definition.  For process engineers and researchers, however, selecting the right material involves more than looking at resolution alone. Film thickness, sensitivity, substrate compatibility, adhesion, and etch resistance all need to fit the intended process. DisChem's H-SiQ is a negative-tone electron beam resist developed for direct-write thin-film EBL applications, giving users a material option designed around these demanding patterning requirements. What Makes HSQ Relevant to High-Resolution Patterning? High-resolution lithography places strict demands on resist performance. Small features need to be defined accurately, while the resist must also withstand the processing steps that follow exposure and development. Di...