QTREX Quantum files patent converting 3D-printed dielectric insulators into graphene-like conductors, targets DF INSU300 commercialization by Q3 2026

QTREX Quantum has filed a patent for a laser process that converts 3D-printed dielectric insulation into graphene-like conductive carbon, aimed at the stray radiation problem that limits superconducting qubit scaling. Working with Northeastern University, the company tested its additive manufacturing electronics (AME) platform and DF INSU300 dielectric material across 20 laser processing conditions, and every condition produced conductive carbon confirmed as graphene-like by Raman spectroscopy. Laser power and scan speed control both electrical resistance and conversion depth, giving a repeatable process window for placing conductive structures at specific locations inside a printed package. QTREX Quantum is targeting commercialization of DF INSU300 by the end of Q3 2026, with cryogenic and high-frequency validation results to follow separately.

The method addresses a real constraint in superconducting qubit architectures: photon absorbers need to sit closer to sensitive circuits as qubit counts rise, but adding discrete components increases assembly complexity and consumes limited space inside dilution refrigerators. Turning the printed package itself into part of the protection system, rather than bolting on separate absorber parts, fits the same logic the company applies to its dilution-refrigerator interconnect work and its AME programs for defense, aerospace and space customers. QTREX Quantum does not appear in the AM Pulse company index, so this filing carries no linkage to prior patents in our coverage.

Cryogenic and RF validation, not the patent filing itself, will determine whether this becomes a qubit-packaging input or stays a materials demonstration.