Printed Electronics Research and Development


Your resource for printed electronics research, development and production

Qi2 has been using direct write Aerosol Jet printing to develop additive manufacturing processes for novel transducers, sensors, and electronic devices since 2009. Housed in a clean room at Quest Center, near Seattle, WA, our Aerosol Jet manufacturing system is available for contract use by industry, research organizations, and universities. Supported by an array of ancillary tools and infrastructure, Qi2 offers these facilities to clients seeking to develop novel materials or needing to manufacture advanced printed electronics, sensors, and controls. Coupled with Qi2’s skills, expertise, and experience in material sciences, MEMS, sensor development, and process design, AJ printing allows a technology to move through any phase of the product lifecycle from proof-of-concept to full production.

Aerosol Jet Summary of Performance Specifications
Minimum feature size10 µm
Maximum printing speed10 cm/second
Accuracy± 1 µm
Working distance1 - 5 mm
Thickness per pass50 nm to 10 µm
Ink viscosity range0.7 - 2500 centipose

Features and Benefits and Advantages of Aerosol Jet (AJ)

AJ can print a wide range of inks
  • Conductors
  • Semiconductors
  • Resistors
  • Polymer and Ceramic Dielectrics
  • Piezoelectrics
  • Photovoltaics
  • Adhesives
  • Fuel Cell Catalysts
  • Organics
  • Biomaterials
  • Carbon Nanotubes and other Nanomaterials
  • Etchants

Qi2 is committed to expanding the reach of the AJ system through acquisition and development of innovative new inks. Most AJ inks are solvent-based, which improves adhesion to polymer substrates over inkjet. Ultrasonic and pneumatic atomization systems are available for optimum ink delivery. AJ does not just deposit inks, but can selectively etch substrates as well.

AJ can print on a wide variety of substrates, rigid, flexible and non-planar

  • Crystalline
  • Glass
  • Ceramic
  • Metal
  • Composites
  • Polymers (Mylar® and other polyesters, Kapton® and other polyimides, PET, PEN, PVDF, silicone rubber, elastomers)
  • Paper

The ink stream stays focused over a 1 - 5 mm working distance, allowing printing of uniform features on 3D substrates. AJ is a non-contact, non-impact process, ideal for printing on fragile substrates.

AJ technology has clear benefits over conventional fabrication methods such as photolithography, inkjet, and screen printing.

  • Patterns can be changed quickly for successive iterations without need for a new mask
  • AJ is a three step process (clean-write-cure) as opposed to 12+ steps for photolithography
  • AJ does not require an extensive cleanroom environment
  • Vector tool paths provide superior accuracy, reproducibility, and print quality
  • Multiple printheads can be ganged together to increase productivity
  • Since AJ printing is an additive, rather than an ablative process, only the material that is needed is deposited
    • No waste - environmentally friendly
    • Cost-effective for printing high value materials such as precious metal-based inks
  • AJ can print the same design multiple times, or can change a feature (e.g., a serial number) each time it prints
  • AJ is a low-temperature process, well-suited for printing on low melting/softening point substrates and printing biologicals and other temperature sensitive materials
  • Overprinting of existing structures allows additions and repairs
See Qi2 at IDTechEx Printed Electronics 2012, Santa Clara, CA Dec 5-6, 2012


  • Ink materials
    • Resourcing and development
  • Prototype engineering
  • Production and process design
  • Additive manufacturing
    • Printed electronics
    • Overprint existing structures
    See Qi2 at IDTechEx Printed Electronics 2012, Santa Clara, CA Dec 5-6, 2012

 Aerosol Jet® is a registered trademark of Optomec, Inc. All rights reserved.