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Theses/Dissertations

2014

Extreme ultraviolet lithography

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Full-Text Articles in Nanoscience and Nanotechnology

Experimental And Simulation Studies Of Printability Of Buried Euv Mask Defects And Study Of Euv Reflectivity Loss Mechanisms Due To Standard Euv Mask Cleaning Processes, Mihirkant Upadhyaya Jan 2014

Experimental And Simulation Studies Of Printability Of Buried Euv Mask Defects And Study Of Euv Reflectivity Loss Mechanisms Due To Standard Euv Mask Cleaning Processes, Mihirkant Upadhyaya

Legacy Theses & Dissertations (2009 - 2024)

There's a big push for development and commercialization of extreme ultraviolet (EUV) lithography for high-volume semiconductor manufacturing of 14 nm half-pitch patterning and beyond. One of the primary concerns for making this a reality has been the ability to achieve defect-free masks. My study is focused on two aspects related to the performance degradation of the EUV masks namely EUV mask cleaning induced reflectivity loss mechanisms, and the buried multilayer phase defects in EUV masks.


Characterization Of Extreme Ultraviolet Lithography Photoresists Using Advanced Metrology And Fitting Techniques, Genevieve Kane Jan 2014

Characterization Of Extreme Ultraviolet Lithography Photoresists Using Advanced Metrology And Fitting Techniques, Genevieve Kane

Legacy Theses & Dissertations (2009 - 2024)

As extreme ultraviolet lithography (EUVL) prepares to be incorporated into high volume manufacturing, many challenges must be addressed. Among these challenges, a need for photoresist improvement exists. The work described here will look into some of the problems and challenges facing EUV resists, in particular out-of-band (OOB) wavelengths of light and their interaction with photoresists. Studies have been completed on the effect of out-of-band light on photoresists [1]-[3]. It is imperative that solutions to suppress the deep ultraviolet (DUV) OOB light be incorporated into next generation EUV production tools due to concerns of decreased performance of lithography, and an increase …