The Basics of Manufacturing Printed Circuit Boards

摘要

PRINTED CIRCUIT BOARDS are produced in different forms, e.g., rigid, flexible, rigid-flex, and high-density interconnect (HDI). The primary differences are in the materials used to fabricate them; these materials, by their properties, give PCBs their ability to flex or to remain rigid. Regardless of the materials used, the primary steps in the PCB manufacturing process are generally the same. But before PCBs reach the manufacturing stage, the PCB designer must make some choices depending on the application: 1. Selecting the type of PCB required by the application; 2. Deciding the number of layers (one, two, four or more); 3. Deciding the mechanical layout, the stackup, and the routing of tracks on different layers; 4. Producing relevant documents and files for the manufacturing process.