# S-Transistors claims it can manufacture superconducting control transistors at scale

_Published Thursday, October 1, 2026 at 12:19 AM EDT · Science · Latest · Tier 2 — Notable_

![Quantum computer — Primary](https://hackaday.com/wp-content/uploads/2021/10/QuantumComputing.jpg)

S-Transistors claims it can manufacture Josephson junction field-effect transistors at scale, Hackaday reports. The startup proposes using superconducting transistors to place quantum-computer control circuits inside the same cryogenic enclosure as the qubits, reducing wiring that penetrates the enclosure and creates a potential failure point.

Its approach uses current to briefly interrupt superconductivity in Josephson junctions, producing a detectable voltage pulse. It would compete with cryogenic CMOS circuits, which can use standard semiconductor production lines but cannot operate as close to absolute zero as the proposed superconducting devices.

## Sources

- [Hackaday](https://hackaday.com/2026/09/30/will-superconducting-transistors-help-quantum-computers/)

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Canonical: https://techandbusiness.org/newswire/vL9XtIpq00BZC4lyuvZN4k
Published: 2026-10-01T04:19:18.142Z
Story chronology: 2026-10-01T02:00:36.000Z
Retrieved: 2026-10-01T06:27:24.565Z
Publisher: Tech & Business (techandbusiness.org)