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Sony patents transistor design using graphene layers for better chips

Sony describes a complementary transistor structure where specific layers are made from two-dimensional materials like graphene. These materials are arranged in stacked layers to form the active regions of the transistors, which control the flow of electricity in a circuit.

Why it mattersThis filing focuses on improving the fundamental building blocks of semiconductors, which could lead to more efficient or smaller computer chips in the future.

In the filing’s own words

A complementary transistor is constituted of a first transistor TR 1 and a second transistor TR 2, active regions 32, 42 of the respective transistors are formed by layering first A layers 33, 43 and the first B layers 35, 45 respectively, surface regions 20 1, 20 2 provided in a base correspond to first A layers 33, 43 respectively, first B layers 35, 45 each have a conductivity type different from that of the first A layers 33, 43, and extension layers 36, 46 of the first B layer are provided on insulation regions 21 1, 21 2 respectively.

What exactly they claim (claim 1)

1. A complementary transistor, comprising: a first transistor including: a first control electrode; and a first active region located below the first control electrode and formed by layering a first A layer and a first B layer; and a second transistor including: a second control electrode; and a second active region located below the second control electrode formed by layering a second A layer and a second B layer, wherein the first B layer is constituted of a two-dimensional material or graphene, and the second B layer is constituted of a two-dimensional material or graphene.

Facts

Company
Sony (SONY GROUP CORPORATION)
Official title
Complementary transistor and semiconductor device
Patent number
US12733254B2
Application number
18540524
Filed
Dec 14, 2023
Granted
Sep 8, 2026
Inventors
3
Claims
20

Classified under

H10D 84/853 Electricity & electronicsH10B 10/00 Electricity & electronicsH10D 12/211 Electricity & electronicsH10D 30/01 Electricity & electronicsH10D 30/024 Electricity & electronicsH10D 30/47 Electricity & electronics
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.