Heraeus Printed Electronics

Hanau,  Germany
http://Heraeus-Printed-Electronics.com

• Booth: L0200

Overview

Selective Metallic Coatings via Inkjet Printing of MOD metal inks: Maskless and Sustainable Solution for Semiconductor Applications!

Prexonics^® is a turnkey digital production process by Heraeus Printed Electronics that combines particle-free silver ink and an inkjet printer for superior EMI shielding using maskless selective coating. The full system solution offers perfectly matched equipment, silver ink, and processes to create the optimal shielding effectiveness, providing design flexibility.

Benefits:

• A complete one stop shop solution: High-speed inkjet printing system, particle-free silver ink, and curing system
• High design flexibility
  • Selective coating and trench coating capability for customized print layouts without masking or etching (package topsides, sidewalls (e.g. with stand-off), as well as trenches for compartmental shielding)
  • Enables package designers to create varied pattern layouts efficiently
• Customized thin metallization films are possible (range of 150 nm to 3 µm with a conductivity of 20-50% of bulk silver)
• Excellent shielding performance for 2 µm conductive film with aspect ratio up to 1:1 at topside and sidewalls

The tool fulfills the standards of the semiconductor industry, and its mass production capability is proven.
The industrial scale inkjet printer is equipped with a highly sophisticated image processor that translates the CAD coating drawing into accurate selectively coated components. It processes magazines of 300 mm ring carriers on which the components to coat are placed. All process steps are automated and inline: components pre-treatment , inkjet printing of the MOD metal ink and sintering to a metallic silver film. 

EMI shielding of semiconductor packages 
This additive manufacturing method is especially suited for EMI shielding of semiconductor packages to secure signal integrity in 5G applications. Shielding effectiveness studies run at a specialized renowned institute confirm that the applied silver film with 2 µm thickness, which is inkjet-coated at the ideal, material saving aspect ratio of 1:1 (side wall to top side), provides excellent shielding performance.

  Products