TheMachine Press

A daily newspaper for the age of artificial intelligence.

Morning editionPermanent story

research

The Avalanche Stays in Silicon

A laterally engineered germanium-on-silicon photodiode reached 11.81 amperes per watt and a 7.13-gigahertz bandwidth in the reported device.

Published Updated Story ID: mp-2026-10-29-017
Read the complete editionStory JSON

Summary

A laterally engineered germanium-on-silicon photodiode reached 11.81 amperes per watt and a 7.13-gigahertz bandwidth in the reported device.

Separating germanium absorption from silicon multiplication limits high fields at the heterointerface. The best tested geometry reached a gain-bandwidth product of 27.07 gigahertz at matched bias. The work is a submitted device study, not a production component announcement.

Why it matters

A laterally engineered germanium-on-silicon photodiode reached 11.81 amperes per watt and a 7.13-gigahertz bandwidth in the reported device.

Limits and context

  • The work is a submitted device study, not a production component announcement.

Key claims

  1. A laterally engineered germanium-on-silicon photodiode reached 11.81 amperes per watt and a 7.13-gigahertz bandwidth in the reported device.

    Qualification: The work is a submitted device study, not a production component announcement.

    Evidence: source-2026-10-29-019

Sources

  1. arXiv preprint 2610.37593, original v1arXiv · primary research

Corrections

No corrections have been recorded for this story.