Screen Printer

MTI EQ-SPC-2-LD

Overview

YES
Patterned screen used for conductive silver paste deposition for electrical contacts in solar cell applications. Fabricated with a plastic mask from the Bungard Filmstar-PLUS Small Photoplotter, exposed with the Karl Suss MA-6 Mask Aligner, and applied with the MTI EQ-SPC 2 Screen Printer. (Megan Dernberger, VINSE).

The MTI EQ-SPC 2 Screen Printer can be used for quickly producing patterns using various paste types.  Using the same process as t-shirt screen printing, mask like designs can be produced using similar steps to photolithography:  degrease the screen, coat the screen with light sensitive emulsion, and burn (expose) the screen and emulsion to UV light with the mask aligner.  The screen can then be used as a mask for pattern transfer with a paste and the screen printer setup.  The Cleanroom has developed a process using silver paste for solar cell metal contacts using the screen printer. 

Capabilities

  • Pattern transferred to emulsion/screen with the use of a photoplotter mask
  • Sample size maximum: 5x5 inch (limited by mask aligner capabilities)
  • General steps:
    • Degreasing screen
    • Coating screen with liquid, light sensitive emulsion
    • Burning screen to transfer pattern (from a plastic mask)
    • Transferring pattern to substrate (like a silicon wafer)
See All User Fees

Contact

  • VINSE Cleanroom

    VINSE Cleanroom

    Dr. Ben Schmidt, Manager

    Dr. Christina McGahan
    Megan Dernberger

    • 111 Engineering Science Building

Get Access

Vanderbilt User Access
External User Access