MEMS Sensor Supply Chain Risks: Why Standard Mitigations Fall Short

MEMS sensors are now integral to industrial automation, robotics, and instrumentation. As volumes increase and price points compress, manufacturers have generally assumed that the same procurement logic applied to conventional sensors will suffice for MEMS. Yet this assumption ignores distinctive, persistent vulnerabilities in the MEMS sensor supply chain that standard diversification approaches cannot fully address. Procurement teams too often treat MEMS as a solved commodity risk when, in fact, they face unique choke points. Foundry Concentration Is a Persistent Structural Risk MEMS sensor procurement risk stems largely from foundry concentration. Unlike CMOS logic or memory, MEMS fabrication is not easily portable across foundries, even where standard wafer sizes and processes are used. Design rules for MEMS vary widely by device function—pressure, motion, inertial, flow—and every foundry must invest in device-specific tooling and process recipes. That limits practic