CPS Technologies is a small Massachusetts-based advanced materials manufacturer specializing in metal matrix composites (MMCs). The core business is producing aluminum silicon carbide (AlSiC) components — baseplates, heat spreaders, substrates, and housings — that are mounted with power semiconductors to form power modules used in high-speed rail, electric vehicles, wind turbines, and power grid infrastructure. AlSiC's thermal and expansion properties closely match those of silicon semiconductors, improving performance and reliability versus conventional materials like copper. CPS's second product line is hermetic packaging — precision housings that protect sensitive electronics from harsh environments — serving aerospace, defense, and space customers in avionics, satellites, GPS, and submarines. CPS claims to be the only manufacturer of hermetic packages with AlSiC bases. A third line, HybridTech Armor, uses MMC technology to produce lightweight ballistic panels for U.S. Navy platforms. CPS sells custom-engineered components to major OEMs across electronics, transportation, energy, and defense. Products are designed to customer specs, and customers go through multi-year qualification phases before placing production orders, creating sticky, recurring revenue once a customer is won. Margins are sensitive to volume, manufacturing yields, and product mix. CPS's proprietary Quickset and QuickCast manufacturing processes are a key competitive differentiator. Growth initiatives include a planned facility relocation to expand capacity, and several government-funded R&D programs targeting radiation shielding, fiber-reinforced aluminum, and munitions components.