Finepitch

Finepitch, sometimes written as fine pitch, is a term used in electronics to describe interconnects and displays with very small center-to-center spacing between adjacent conductors. It covers components such as pin headers, contact pads, FFC/FPC connectors, and board-to-board connectors where the pitch is typically under 1 millimeter. Common fine-pitch ranges run from about 0.4 mm to 0.8 mm, with some high-density applications extending toward 0.25–0.35 mm.

Applications of fine-pitch interconnects include consumer electronics such as laptops and smartphones, cameras, automotive displays, and medical devices, as well as LED display panels that require high resolution. In LED signage, fine-pitch modules refer to displays with small pixel pitch, enabling clearer images at closer viewing distances. In PCB design, fine-pitch connectors are used for flexible cables and compact board-to-board assemblies, allowing higher density in smaller form factors.

Manufacturing and reliability considerations are central to fine-pitch solutions. They demand precise fabrication and controlled soldering processes (such as high-precision reflow), along with stringent cleanliness to prevent solder bridging. Inspection and testing often require advanced methods like X-ray or automated optical inspection. Mechanical design must account for mating force, latch integrity, and lifecycle durability, and environmental tolerance is important in automotive or aerospace contexts.

In summary, finepitch denotes high-density interconnect technology that enables compact, high-performance devices, while also presenting manufacturing challenges and cost considerations. The term appears across connector families from multiple manufacturers, with pitch values typically in the sub-1 mm range and chosen to balance density, reliability, and cost.