Mivium is focusing on an earlier point in the gallium nitride value chain: not devices, wafers or fabs, but the source material that feeds them. The company says its Fremont, California team produces phase-pure, submicron gallium nitride powder on a proprietary platform and has now published independently characterized results for the material.
The announced GaNgallium nitrideGaN is another material platform mentioned for use in different power delivery roles. powder is described as phase-pure hexagonal wurtzite GaNgallium nitrideGaN is another material platform mentioned for use in different power delivery roles. with particle sizes in the 300 to 500 nanometer range. Mivium says the material shows uniform distribution and faceted morphology. Independent third-party analysis is cited across SEM1. scanning electron microscopyImaging technique that scans a focused electron beam across a sample.2. specific equipment modelComputational method or mathematical model for simulating, describing or optimizing technical systems.3. scanning electron microscopeSEM images are used for high-resolution inspection and measurement., EDS1. energy-dispersive spectroscopyAnalytical measurement method that derives sample properties from a characteristic spectrum.2. electron-dispersive spectroscopyAnalytical measurement method that derives sample properties from a characteristic spectrum., XRDX-ray diffractionDiffraction of X-rays from crystals to determine structure and orientation., XPSX-ray photoelectron spectroscopySurface analysis measuring photoelectron energies to identify elemental composition and chemical states., GDMS and ICP-MSinductively-coupled plasma mass spectrometryAnalytical measurement method that derives sample properties from a characteristic spectrum., with the company emphasizing that phase purity and uniformity are being treated as semiconductor-grade requirements rather than just a size milestone.
The company frames the work as an upstream answer to repeatability and supply concerns in GaNgallium nitrideGaN is another material platform mentioned for use in different power delivery roles.-related development. It says teams working on crystal growth, substrates and thin films need a controlled, repeatable feedstock with data behind it, especially as demand from AIartificial intelligence power, EV and RF1. radio frequencyHigh-frequency electromagnetic oscillations used, for example, to excite plasmas.2. resonance frequencyQuantity describing a signal’s frequency, bandwidth, spectral behavior or transmission rate. applications pulls harder on upstream materials supply.
Mivium says the process is designed for industrial volumes. It also says the same platform extends beyond GaNgallium nitrideGaN is another material platform mentioned for use in different power delivery roles. to other wide bandgap materials, including gallium oxide and boron nitride. The company has raised more than $10.5 million.
On the application side, Mivium is targeting crystal growth, substrate development and thin-film work, while stressing that it is not a wafer or device company. The fit, it says, is application-specific and depends on how the customer evaluates the material in its own process.
Thin films are the next step in the roadmap. Mivium says it has completed initial GaNgallium nitrideGaN is another material platform mentioned for use in different power delivery roles. deposition work in-house, derived from the powder platform, and describes this as early-stage R&D. The effort is meant to connect feedstock properties more tightly to film behavior and to extend the platform toward potential semiconductor and photonics applications.
Customer engagement begins with technical qualification: what material is needed, at what scale, and how it will be evaluated. Qualified crystal-growth, epitaxy and materials teams can request characterization data and evaluation samples directly from the company.