Jacky Ko

Portfolio

Research Projects

I began working as a research assistant at the Kostas Center for High-rate Nanomanufacturing in the summer of 2014 until the summer of 2015. During this time I was exposed to microfabrication techniques such as optical lithography and got an opportunity to work in a class 10 cleanroom. I have been helping with a bioengineering research group at Northeastern from the summer of 2016 to the present day.

Elastomer Assisted Manufacturing

Researched a novel method of using an elastomeric substrate to circumvent the fundamental resolution limit of traditional optical lithography.

  • Created elastomeric samples using optical lithography techniques such as substrate preparation, spin coating photoresist, exposing, and developing.
  • Researched different methods to improve adhesion to elastomeric substrates such as plasma etching.
  • Characterized samples using imaging techniques.
  • Work was presented at the Material Research Society.

Various images of elastomeric samples. Optical images (Top) and images taken with a scanning electron microscope (Bottom).

Optogentics Testing Array

Designed and create a set of PCBs for optogenetics testing on standard 12 well cell culture plates and mechanical enclosures.

  • Created PCB gerber files for manufacturing using Altium Designer.
  • Researched PCB manufacturers and calculated costs.
  • Designed a 2 part 3D printed enclosure for the LED array.
  • Determined appropriate header and cables for PCB.
  • Wrote arduino code for synchronous LED activation.

PCB layout in Altium Designer.

Other Projects

Micro-inductor Fabrication

  • Explored methods to develop a high resolution inductor spiral.
  • Wrote detailed reports to determine cause of path failure.

Multielectrode Array (MEA) Design

  • Designed a multielectrode array using AutoCAD.
  • Researched MEA recording systems and presented comparisons to PI.
  • Communicated with vendors to acquire system quotes.
  • Led the purchase of a $71,000 MEA system.

CAD model of inductor (Top) and a close-up view of MEA center (Bottom).