3D MID (Mechatronic Integrated Device) is a technology that enables electrical circuits and electronic components to be directly formed and mounted on the surface of three-dimensional molded resin parts, such as plastic components.

This technology makes it possible to integrate electronic circuitry and mechanical structures into a single component, reducing the need for separate printed circuit boards (PCBs) and mechanical parts.

In conventional electronic products, electronic components are mounted on a PCB, which is then assembled into a mechanical structure. With 3D MID, however, the mechanical structure itself can function as the circuit carrier.

As a result, designers can overcome many of the limitations of conventional PCB-based designs and achieve greater design freedom, miniaturization, weight reduction, and functional integration.

One area where 3D MID offers significant advantages is wearable devices and other products that must conform to the human body.

Many products such as smartwatches, smart glasses, smart rings, health-monitoring devices, and emerging Physical AI systems feature curved or three-dimensional shapes rather than flat surfaces.

Traditional flat PCBs often struggle to fit efficiently within these complex geometries, leading to unused space, limited design flexibility, and more complicated assembly processes.

By utilizing SENIN TECHNOLOGIES’ 3D MID solutions, designers can optimize circuitry for curved and three-dimensional surfaces, enabling more comfortable, compact, and high-performance devices.

Today, 3D MID technology is widely used across various industries, including automotive, medical, industrial, and consumer electronics applications.

Looking ahead, 3D MID is also expected to find new applications in data center connectors, AI semiconductor packaging, optical I/O modules, glass substrates, and InP (Indium Phosphide) substrate interconnect technologies.

For specific examples of 3D MID applications by industry, please visit the pages below.

SENIN TECHNOLOGIES provides comprehensive support for 3D MID development, from material selection and manufacturing process evaluation to design, production, assembly, and sales.

Whether you are considering adopting 3D MID technology or are unsure how to design and implement it in your products, please feel free to contact us for consultation.