Semiconductors

While graphene captured early 2D materials attention, transition metal dichalcogenides like MoS2 now power breakthrough applications from neuromorphic AI chips to room-temperature quantum processors. Unlike graphene’s zero bandgap limitation, TMDs offer tunable semiconducting properties spanning 1-3 eV, enabling direct integration into digital logic and quantum devices without the complex bandgap engineering that hobbled graphene commercialization.

MEMS bolometer experiments demonstrate 2-3x enhanced thermal sensitivity through phononic crystal integration, while advanced metamaterial designs achieve thermal conductivity control spanning five orders of magnitude. AI-accelerated optimization reduces design cycles from weeks to hours for next-generation thermal management.

Experimental demonstrations show topological phononic crystals providing precise thermal management at micro-nanoscales. MEMS bolometer studies report enhanced thermal sensitivity through engineered phonon transport, while computational advances reveal fundamental transport mechanisms in silicon phononic structures.

Major foundries are implementing backside power delivery networks to overcome IR drop limitations at advanced nodes. TSMC’s N2 (2025), Intel’s 18A PowerVia (2024), and Samsung’s SF2Z processes represent a fundamental shift from shared front-side routing to decoupled power architectures, addressing power delivery impedance that scales as ρL/A in increasingly constrained geometries.

As silicon transistors approach fundamental physical limits, transition metal dichalcogenides — atomically thin semiconductors like MoS₂ and WSe₂ — are emerging as the most credible path forward. Here’s where the science actually stands.

AI compute is outpacing memory bandwidth by 3× per generation. HBM4’s 2 TB/s promise is a marvel of engineering — and it still isn’t enough.