Technology - Printed Electronics - Micro printed

Micro-printed Silvers

Sheldahl uses high-speed, roll-to-roll processes to apply micro-printed silver inks. Ideal for mutual-capacitance switch nodes with backlighting graphics.

Typical applications for Sheldahl’s micro-printed silvers include transparent capacitive switches, projected capacitive touch sensors, flexible displays, and flexible photovoltaic solar cells.

Base Films & Adhesives:

  • Clear PET (75µm, 125µm thick)
  • Optically Clear OCA/PSA (3M 467, 3M 8172)

Inks:

  • High resolution printing of a non-transparent silver ink in a Hexagon pattern created the switch nodes while 75-90% of the surface remains uncovered
  • Printed PTF silver defines the traces connecting the switch nodes through the connector tail
  • Carbon PTF ink can be printed in the connection area for durability and reliability
  • The body of the switch circuit can be covered with either PET Coverfilm or a clear printed mask for protection.

Printed Circuitry

  • Processes: Roll-to-Roll Printing
  • Minimum MPS Feature: 20µm
  • Max pattern size: 500mm x 450mm
  • Minimum silver trace pitch: 500µm
  • Resistance Uniformity: <±15%
  • Custom Testing and Excising

Click here to download Micro-printed Silvers Data Sheet.

To learn more about our printed silver capabilities request to have Sheldahl contact you directly or contact us by calling our US toll free number 866-702-0329.

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