Photolithography

Nanotechnology: A Maker's Course
Photolithography Basics

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The Shared Materials Instrumentation Facility (SMIF) is the Pratt School of Engineering’s core facility that enables materials, devices, and integrated systems research at Duke University in a variety of fields that include nanotechnology, biomaterials and biomedical engineering, information sciences, optoelectronics, sensor technology, and renewable energy. SMIF is housed in the Fitzpatrick Center for Interdisciplinary Engineering, Medicine and Applied Sciences (FCIEMAS). The facility consists of 7,000 square feet of clean room fabrication space, and nearly 3,000 square feet of specialized laboratory space for characterization and imaging equipment. SMIF is part of the Research Triangle Nanotechnology Network (RTNN) in partnership with similar facilities at North Carolina State University and the University of North Carolina at Chapel Hill. The RTNN is one of 16 organizations nationwide that comprise the National Science Foundation sponsored National Nanotechnology Coordinated Infrastructure (NNCI) program.

SMIF is open to all trained students, staff, faculty, and researchers and is used for both research and educational purposes. SMIF has nearly 700 users, of which 2/3 come from Duke University and 1/3 come from external academic institutions or industry. SMIF staff trains students and researchers to use the lab equipment and instruments themselves, and provides guidance and support in developing processes and methodologies that utilize these capabilities. Alternatively, SMIF staff can run samples for researchers as a service. SMIF also coordinates various educational and outreach activities.

[Becausing]

It's always interesting to see how much textile technology has guided computer technology. This is essentially the same process that is used in screen printing and even older wax resit methods(such as batik). And of course, jacquard looms are proto-computers.

[mubarakayinla]

A really wonderful explication of the complete photolithography process. Thank

[giulliabraga]

this is exactly what i've been looking for and very thoroughly explained. thanks a lot!

[cyclonic]

This was an INCREDIBLE video!!! I have been helping a semiconductor fab do the CAD drawings for the new tool install so i spend a lot of time around all of these machines. I had no idea how they or what the process was but this totally explained it! Thank you!

[jiko]

Wonderfully done, informative and well produced! Thanks for taking the time to create these and sharing them!

[ordinaryman]

this is excellent for beginners, it explains thing simply from the ground up, well done !!!

[jamesdriscoll_tmp]

Nice! This series is a great introduction to semiconductor manufacturing. Lithography is an important part of the process, repeated many times to build a circuit.

[linskimi]

Very helpful, thanks for putting this on Youtube!

[mohamedkandeil]

your explanation is awesome I had a problem to understand this part but I understand this from you despite I am not good in english so thank you

[semimba]

these are great short learning templates. Thanks for producing them

[johnmiddleditch]

Nan makes me feel like a Neanderthal. Beautifully delivered talks / lectures, thank you.

[joshi--skzen]

Great videos to learn about semi conductor processes

[cosanostra]

Thank you very much for the video.
Could you tell me what are the possible causes of stitching lines?
why some lith machine macke stitching line during the lith process an other machines dont have this problem?
thank you very

[coldnovember]

I used this video to get a job I'm woefully under qualified for.

[SubconsciousMiracles]

Hi ! In the example used with Gold, isn't Gold a photoresist?
Because you had the silicone, and then on top you need to have a photoresist directly, but there was Gold .. so is gold = photoresist ?
Thanks for the video !

[zachimran]

perfectly explained! nice pace! beginner friendly

[chinthalaadireddy]

Awesome content on Photolithography with the real equipment and quite nice explanation.. thank you so much guys! Keep it up!😍

[panternwolf]

does diffraction soften the pattern when transferring the pattern?

[razamadaz]

Great presentation, shame about not showing the gold layer process though. I still learnt a lot though, thanks.

[cssgod]

why do we need to inscribe patterns on the substrate??