Graphene Semiconductors — A Soma Technologies Subsidiary

Mapping The Unseen

One to five layer graphene — grown and precision-stacked — engineered into memory, quantum and terahertz devices.

Explore the map FIELD_07 — ACTIVE · MADE IN BHARAT
From Layers to Logic
LAYER_001 — 005

Where graphene
becomes a system.

We work in the regime where graphene stops behaving like a bulk material and starts behaving like a designable electronic system — one to five atomic layers, with stacking order as a design variable.

MAT_001 — CVD GRAPHENE

CVD Graphene

Wafer-scale monolayer and few-layer films grown by chemical vapour deposition, transferred onto device substrates.

MAT_002 — LAYER ORDER

Precision Stacking

Proprietary layer ordering that unlocks correlated states and superconducting behaviour.

MAT_003 — VAN DER WAALS

Heterostructures

Graphene stacked with dielectrics and 2D partners to engineer bandgap, mobility and coupling.

Graphene hexagonal lattice LATTICE_001 — HONEYCOMB
SP2 CARBON — 0.335 NM / LAYER FIG. 01
Device Roadmap — States of Computation
DEV_001 — 004
DEV_001 — MEMORY

Memory devices.

Non-volatile graphene memory targeting high density, low switching energy and strong retention.

DEV_002 — QUBITS

Superconducting qubits.

Graphene-based Josephson elements for gate-tunable qubits and quantum computing research hardware.

The device stack
DEV_003 — TERAHERTZ

THz devices.

Terahertz detectors, modulators and emitters exploiting graphene's ultrafast carrier response.

DEV_004 — SENSING

Sensors & interconnects.

High-sensitivity sensing and low-resistance interconnect layers for advanced packaging.

RESEARCH-STAGE TODAY — DEVICE DEMONSTRATORS SEQUENCED AHEAD OF PILOT PRODUCTION
Application 04 — Superconducting Qubit Devices
QBIT_042

The junction
becomes a
control knob.

Quantum processors today are built from fixed aluminium junctions. Graphene makes the junction itself tunable — turning a fabricated constant into a control knob.

STACK_01

Junction

Graphene weak link between superconducting electrodes carries a supercurrent.

STACK_02

Encapsulation

Hexagonal boron nitride stacking preserves mobility and interface quality.

STACK_03

Tuning

An electrostatic gate sets carrier density, and with it the critical current.

STACK_04

Readout

Coupled to a microwave resonator for dispersive measurement at millikelvin.

Dilution refrigerator — millikelvin measurement stage CRYO_001 — MILLIKELVIN STAGE

Electrical gate tuning replaces fixed junction geometry — frequency becomes controllable.

Proprietary layer ordering gives access to correlated and superconducting states by design.

Low intrinsic loss in clean encapsulated stacks supports coherence targets.

Shared fabrication toolchain with our memory and terahertz device lines.

0
Atomic Layers, Max
0
Device Lines
0
Shared Fab Toolchain
Made in Bharat — R&D in Hyderabad
SITE_HYD — 001
Processed semiconductor wafer WAFER_012 — POST-TRANSFER
DEVICE FABRICATION — HYDERABAD FIG. 02

One roof.
Molecule to chip.

Our Hyderabad centre brings materials characterisation and device fabrication under one roof — so a graphene device stack can be developed, tested and scaled in the same place.

CAP_01

Graphene synthesis, transfer and characterisation.

CAP_02

Device fabrication and cryogenic measurement.

CAP_03

Product testing to industrial and safety standards.

CAP_04

Partnerships with Indian institutes and industry.

CAP_05

Pilot lines sequenced with Soma Technologies materials.

Brand Idea

Soma builds the materials. NanoMana builds the devices.

An Indian deep-tech platform that spans the molecule and the chip. Unseen to understood.