QTREX is placing its bets on the foundational layer that supports quantum computing.

      The quantum computing sector has focused heavily on qubit counts over the past three years. Willow boasts 105 qubits, Nighthawk has 120, and there’s the 540-qubit superconducting platform that integrated almost 700 control lines into a single cryostat last year. The number of qubits is indeed a significant metric, and rightfully so.

      However, within the laboratories striving to advance superconducting systems beyond current limitations, engineers often find themselves discussing a less glamorous topic: cables. Each superconducting qubit requires multiple control and readout lines that extend from room-temperature instruments to the millikelvin plate housing the processor. Every additional line adds heat, occupies space, and contributes to electromagnetic interference. With a few hundred qubits, the wiring is already a handcrafted endeavor, and as the count climbs to several thousand, it becomes unwieldy. At the million-qubit level needed for fault-tolerant computing, traditional methods simply fail to suffice.

      This challenge is precisely what QTREX aims to address. The "I/O wall," a term referring to the interconnect issue, has been a concern in the engineering community for years, and the urgency is escalating. IBM's roadmap envisions achieving near-term quantum advantage by the end of 2026 and a fault-tolerant machine by 2029, but these plans hinge on the interconnect layer keeping pace.

      QTREX posits that this issue is more about architecture than just cables. The company seeks to replace the traditional assembled bundle of cables, connectors, shielding, thermal anchors, and mechanical routing with one unified structure produced as a single entity. This innovation stems from Additively Manufactured Electronics (AME), a multi-material 3D printing technology that prints conductive and dielectric inks concurrently to create precise 3D electronic shapes. Previously, AME was utilized for high-performance RF circuits and antennas in defense and aerospace sectors. Now, the Israeli firm is applying it to address one of quantum's most significant hardware constraints.

      In simpler terms, while conventional quantum wiring is assembled, QTREX's solution is developed as an integrated system. The company touts around 20 fully shielded conductors per square centimeter, a crucial density because what limits a cryostat is not its volume but the thermal capacity that volume entails.

      Why This Might Emerge as a Distinct Category

      In late April, QTREX entered a joint development agreement with Qarakal Quantum, an Israeli full-stack superconducting quantum firm associated with Israel Aerospace Industries and the Hebrew University of Jerusalem, which created Israel's first domestically operated quantum computer. Under this partnership, QTREX is providing 3D-printed structures for experiments at milli-Kelvin temperatures within Qarakal’s cryogenic development setting.

      Three weeks later, the company revealed it had initiated a joint technical evaluation with one of the top five global quantum computing firms. Engineering and integration teams from both sides are currently testing QTREX’s interconnect components within the partner's cryogenic refrigerator. If a conclusive agreement follows, QTREX could become essential interconnect technology for the partner's upcoming quantum hardware initiatives.

      The momentum is not limited to quantum-specific companies. A Tier-1 US defense client has received an AME system, and an implementation project is in progress at one of the Magnificent Seven US tech firms, those that increasingly dominate global quantum research investments.

      "The engagement with one of the top five global players in quantum systems highlights the acknowledgment that QTREX’s interconnect strategy addresses a critical bottleneck in quantum hardware," said CEO Dagi Ben-Noon when announcing the evaluation.

      The Shift the Industry Is Already Embracing

      The initial phase of quantum computing primarily revolved around physics: could a functional qubit be constructed and managed? Most of those questions have been resolved. The next phase focuses on engineering, specifically whether the surrounding hardware can scale alongside the processors. In the realm of AI infrastructure, the most valuable companies emerged not as those creating models, but rather as those manufacturing the chips and interconnects that support them. A similar pattern is beginning to unfold in the quantum domain.

      QTREX believes the interconnect layer represents a critical opportunity. The company must still achieve commercial success, but the challenge it is addressing is already acknowledged throughout the industry.