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In the Laboratory
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Hands-on Classroom Photolithography Laboratory Module To Explore Nanotechnology
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Scott J. Stelick and William H. Alger
Alliance for Nanomedical Technologies, Cornell University, Ithaca, NY 14850
Jesse S. Laufer, Anna M. Waldron, and Carl A. Batt
Nanobiotechnology Center, Cornell University, Ithaca, NY 14850
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September 2005
Vol. 82 No. 9
p. 1361
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| Abstract |
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Teaching nanotechnology in the high school and undergraduate environment is a
challenge given the typical expense of instruments used to create micro- and
nano-sized devices. To meet this challenge, a portable optical reduction stepper
was designed, fabricated, and optimized for use in classrooms. This unique
system was designed to provide a safe, hands-on experience for students to
create microscale circuits using photolithography. Students are able to design,
fabricate, and test a circuit with dimensions as small as 100 mm. The hands-on
activity involves the use of a portable 5X optical reduction stepper that is
able to transfer a pattern created on a simple acetate transparency to an aluminum
coated slide. The etched aluminum features in the pattern can be tested by
virtue of their ability to complete a circuit. The entire activity can be accomplished
in 1–3 hours and all steps and reagents are designed to be carried out in a
typical classroom laboratory environment. The teaching activity highlights
important concepts in chemistry, optics, electricity, and engineering and used
in a pilot study with students ages 12–14 years helped to convey key concepts
in nanotechnology.
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| Supplement |
Detailed information about the instrument design, notes for the instructor, experimental procedure for the students, post-lab questions, and PowerPoint slides are available.
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 Contents |
Folder JCE2005p1361W containing four files
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| Download |
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| More Information |
Citation |
Stelick, Scott J.; Alger, William H.; Laufer, Jesse S.; Waldron, Anna M.; Batt, Carl A. J. Chem. Educ. 2005 82 1361.
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Keywords |
Applications of Chemistry; Curriculum; Elementary / Middle School Science; Enrichment / Review Materials; First-Year Undergraduate / General; Hands-On Learning / Manipulatives; High School / Introductory Chemistry; Laboratory Instruction; Nanotechnology; Polymerization; Public Understanding / Outreach; Undergraduate Research
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History |
Created:
Last Updated: |
August 2, 2005
August 10, 2005
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| Home > JCE Print > Journal of Chemical Education > Issues >
2005
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1361
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