University of Massachusetts

Raytheon Company

Andrew M Luce

Edward D Kingsley

Craig A Armiento

Alkim Akyurtlu

Oshadha K Ranasingha

Mahdi Haghzadeh

Yuri A Piro

Christopher R Areias

Emily Lamport

Christopher N Kuncho

Guinevere M Strack

Cameron Hardie

An ink stabilizing composition includes a polymeric network including an acrylate polymer and a plurality of high aspect ratio particles each having an aspect ratio of about 2:1 to about 30:1 and an average particle diameter of about 0.5 to about 1.2 micrometers.

Temperature-stabilization of convertible functional inks by disruption of conduction paths

A chip-embedded printed circuit board includes a cavity in a printed circuit board, a chip in the cavity of the printed circuit board, and a thixotropic dielectric filler in a gap in the cavity to seal the chip in the printed circuit board.

Nanocomposite material for ultraviolet curable direct write semiconductor applications

Among other concepts, this disclosure describes a thermal/optical/electronic authentication system (covert or non-covert) for device/system implementations. The authentication system may be based on different design parameters such as i) materials composition, ii) thickness of material, iii) geometry of material, iv) external effects including use of an external DC bias and curing, etc. The authentication testbeds can be configured to include one or more inks. Using such methods as discussed herein, the authentication can be broadened to include near-IR (700-900 nm), short wave IR (1-2.6 mm), and UVA (300-400 nm) or any spectrum. Printed resistors are very difficult to duplicate without Ag-BST13 ink. If necessary, a printed resistor network on a respective substrate can be hidden using a layer of non-sintered Ag-BST13 (non-conductive).

Multi-level authentication using different materials

Growing community of inventors

Marlborough, MA, United States of America

Andrew M Luce