DARPA's Microsystems Technology Office Drops Six FY26 SBIR Topics Closing June 24 — From Nanopore Proteomics to 800°C Integrated Circuits, the MTO Drip Reveals the Shape of the Next Decade of Defense Microelectronics

DARPA's Microsystems Technology Office (MTO) is the part of the agency responsible for the United States retaining microelectronics dominance — a portfolio that includes everything from extreme-environment semiconductors to chip-scale atomic sensors, from photonic compute architectures to the design tooling that makes those things buildable at trustable foundries. MTO's program managers operate on a longer time horizon than most of DARPA, frequently funding multi-phase research arcs whose commercial impact is not legible for a decade. The office's SBIR program is correspondingly narrow: a small number of topics per year, each tightly written to a specific technical gap, each demanding small-business performers who can move at semiconductor industry speed.

The FY26 MTO SBIR drop posted on May 27 fits that pattern exactly. Six topics, all with the same June 24, 2026 close, all using DARPA's standard Phase I (6 months, design and feasibility) / Phase II (up to 36 months, prototype fabrication and demonstration) structure. The topics, read together, are not a random assortment — they are a coherent map of where MTO believes the next decade of microelectronics-enabled defense capability is contested.

The six topics, read as a portfolio

Nanopore proteomics sits at the intersection of microelectronics and biology. Nanopore sensing was originally commercialized for DNA sequencing (the Oxford Nanopore platform is the dominant exemplar), but the same fundamental physics — single-molecule translocation through a nanoscale aperture, with each molecule generating a characteristic electrical signature — has been adapted experimentally to protein identification. A working defense-grade nanopore proteomics platform would enable battlefield-deployable detection of pathogens, toxins, and signature human-performance biomarkers from microliter samples in minutes rather than hours. The technical bar is severe: nanopore protein discrimination requires far higher signal-to-noise than nucleic-acid sequencing, and the engineered nanopores that work for one protein class typically do not work for another. MTO is funding the chip-and-fluidics integration side of the problem, not the underlying biochemistry.

Compact Wideband Tunable Filters (topic identifier DPA26BZ02-NV007) is the topic with the most explicit specifications publicly disclosed. The performance envelope is brutal: a tunable RF filter operating across 2 to 18 GHz with 4:1 center-frequency tuning and 3:1 bandwidth tuning, insertion loss under 3 dB for passive systems and 8 dB for active versions, in-band IIP3 above 15 dBm, out-of-band rejection above 40 dB, all in a packaged volume under 20 cubic centimeters consuming less than 250 milliwatts. No commercially available filter today meets that specification simultaneously. The DoW use case is electronic warfare and contested-spectrum communications, where the radio must hop across an enormous range of bands in real time while rejecting jammers and adversary emissions. The commercial parallel is software-defined radio and next-generation cellular base-station front-ends, which need similar tunability at lower performance specifications.

800°C-rated integrated circuits addresses a different extreme. Standard silicon CMOS fails above about 150°C — the leakage currents become catastrophic — and even silicon-on-insulator variants do not survive sustained operation at 300°C. Defense applications in hypersonic vehicle skins, deep-well downhole sensors, jet-engine combustion monitors, and several classified categories need integrated circuits that operate continuously at 800°C. The leading material candidates are silicon carbide (SiC) and gallium nitride (GaN) — both already in commercial use for power electronics but only beginning to mature for digital logic — along with newer wide-bandgap research-stage materials. The Phase I deliverable for a topic at this level of technical difficulty is typically a credible analytical demonstration that a particular materials-and-architecture choice can hit the temperature target with usable transistor performance; the Phase II deliverable is a working circuit.

Passive thermal spreaders is the quiet topic in the drop, but the strategic stakes are high. Modern high-power microelectronics — radar transmit/receive modules, directed-energy weapons, high-performance compute for edge AI — generate heat fluxes that exceed what conventional copper or aluminum heat-spreader materials can move passively. The leading research-stage answers are diamond (highest thermal conductivity of any bulk material, but cost and integration-with-silicon are unsolved), boron arsenide (lab-demonstrated thermal conductivity competitive with diamond, manufacturing immature), and engineered metamaterials with anisotropic heat transport. MTO is funding the materials-engineering and packaging-integration work that translates lab-stage thermal-conductivity records into device-compatible spreaders.

Radiation-hardened codesign is the most software-flavored topic in the drop. Radiation-hardened ICs for space and strategic-defense applications are conventionally designed using bespoke layout libraries and bespoke verification flows — an expensive, slow, low-volume process that lags commercial silicon by several technology nodes. The MTO topic funds the development of design-tool flows that let a circuit designer specify radiation-hardness requirements at the architectural-and-RTL level and have the synthesis-and-place-and-route tooling automatically generate a rad-hard implementation. The commercial analog is the way ASIC tooling now automatically generates power-aware or low-leakage implementations from a single RTL source. The deliverable is fundamentally a software product, but one whose validation requires real radiation-effects test data on test chips.

Low Resource Computing is the topic with the most explicit dual-use commercialization framing. The DoW use case is "remanufacturing of legacy hardware, including in the field ('out-of-factory') to upcycle them into a new life" — squeezing additional capability out of weapons platforms whose original electronics are decades old and whose replacement parts no longer exist. The technical work is some combination of compiler tooling that retargets modern software to legacy instruction-set architectures, FPGA-based co-processor designs that augment legacy CPUs without replacing them, and verification flows that prove the upgraded system meets the original platform's safety case. Commercial applications include industrial-controls modernization, legacy-aircraft avionics upgrades, and the long tail of embedded systems whose original silicon is end-of-life.

What makes MTO SBIR different

DARPA's SBIR program as a whole has shifted, as our coverage of the Defense Sciences Office June 3 SBIR XL drop documented, away from large semiannual batch BAAs and toward a continuous monthly cadence of small, sharply-scoped topics. The MTO drip fits the new pattern. But MTO's SBIR culture differs in three important ways from DSO's, BTO's, or the service-component SBIRs that dominate the Department of War's FY26 Release 2.

First, MTO topics presume serious technical maturity. A small business with no semiconductor fabrication relationship, no test-and-measurement capability, and no team member who has shipped a commercial IC will struggle to write a credible Phase I narrative for any of the FY26 topics. The agency is not looking for technical generalists; it is looking for small companies whose founders have already spent a decade in a specific microelectronics subfield.

Second, MTO Phase I awards are smaller in scope than they appear. The standard $250,000 Phase I budget will not fund a tape-out at a leading-edge foundry, will not fund a multi-month thermal-cycling characterization campaign, and will not fund a Phase II-quality prototype build. The Phase I deliverable is almost always an analytical-plus-simulation-plus-targeted-experimental package that establishes feasibility at a level a Phase II reviewer can underwrite. Founders who pitch a Phase I as "we will build the prototype" misread the structure.

Third, the Phase III commercialization story is unusually credible. MTO-derived technologies have a track record of transitioning into actual defense programs of record (radar T/R modules, SiC power electronics in hybrid-electric military vehicles, hardened processors in next-generation satellites) and into commercial markets (5G base-station components, automotive radar, downhole sensors). Founders who can articulate a Phase III pathway that includes both a defense program-of-record relationship and a commercial customer are at a significant scoring advantage.

The application reality

All six topics close at 12:00 noon Eastern on June 24, 2026, through the DoD SBIR/STTR Innovation Portal (DSIP). The agency's standard rules apply: SAM.gov registration with a valid UEI must be complete at the time of submission; the small-business eligibility criteria (under 500 employees, majority U.S.-owned, no significant foreign-investment entanglement) must be documented; and the technical narrative must fit the DoD SBIR template, which differs in important ways from NIH and NSF templates.

Founders who are not already in flight on one of these topics have effectively no time. The credible move at this point in the cycle is to monitor the July MTO drop — pre-release on the first Wednesday of July, open June 24 corresponding window — and start the SAM.gov, DSIP-onboarding, and team-assembly work now so that the next topic that matches your technical profile finds you ready.

For the small subset of founders whose work already maps to one of the six June 24 topics, the strategic priority is clarity. Pick one topic. Write a focused, technically credible Phase I narrative that articulates the specific feasibility question the nine-month effort will resolve and the specific Phase II prototype the resolution will enable. Submit early — DSIP has a history of timing out under load in the final hours before a major DoD-wide deadline.

The MTO drip is one of the highest-signal channels in U.S. defense microelectronics funding. Six topics is a small portfolio, but the portfolio is a map. Read it as one.