520/530/580.495 Microfabrication Lab

520.773 Advanced Topics in Fabrication and Microengineering

Class Presentation

In this course we are learning the basis of fabrication technologies within a context of a laboratory that has limited scope and facilities. We have a contact mask aligner, a photoresist spinner, an oxidation furnace, and a thermal evaporator as well as basic chemical setups for wet etching. However we need to broaden our horizons about what is possible to do and what the state of the art is. The following papers discuss  both processing improvements in fabrication  and integration  as well as different devices with applications in biology/medicine.

  1. Components for integratedpoly(dimentylsiloxane) microfluidic systems, (Electrophoresis, vol. 23, pp. 3461–3473, Oct.2002).
  2. Separation of Long DNA Molecules in a Microfabricated Entropic Trap Array (Science, 2000, v288, p1026)
  3. Chemical Amplification: Continuous-Flow PCR on a Chip (Science, 1998, v280, p1046)
  4.  Microfluidic large-scale integration, (Science, vol. 298, pp. 580–584, Oct. 2002).
  5. Fabrication of a Cylindrical Display by Patterned Self-Assembly (Science, 2002, v296, p323)

Read ONE of the above papers and prepare a presentation for the class. In preparing your presentation keep in mind the resources of the lab at Hopkins and discuss the possibility of doing the project in the facilities available at Johns Hopkins. Work in groups of 2 or 3 (teams that you had in the lab sections). You will have 5 minutes for your presentation with an additional 2 minutes for questions. Your presentation should be prepared using a presentation software package (Powerpoint, Freelance e.t.c) and converted to a PDF file. Bring your presentation on  a floppy or a memory stick so that we can do an electronic presentation in the class. Your presentation should contain no more than 8 slides WITHOUT color background (you can use color figures but do not use fancy background schemes).

The presentation should include:

  1. Names and title of  the  project (1 slide)
  2. Introduction and literature survey (1 slide)
  3. Fabrication (1 or 2 slides)
  4. Characterization and Testing (1 slide)
  5. Conclusions (1 slide)
  6. Extra slides with results from testing your device that you fabricated in the lab (1 or 2 slides).

Please hand in: i) an electronic AND ii) hardcopy version of your presentation

Due: Presentation and submission of work in class on December 2nd and 3rd in a place to be decided.