PCB Technical - Circuit board performance and specific characteristics

In modern life, whether for work or leisure, we will use all kinds of electrical appliances. As a part of electrical appliances, circuit boards play a huge role. Today we will talk about some things about the circuit board. Circuit board, what is it? The following is an introduction to the "relevant performance and specific features of the circuit board".

PCB performance characteristics

1. Film and sheet: all kinds of food, medicine, non-toxic and sterile packaging materials;

Packaging materials for textiles, precision instruments, and electrical components;

Base materials for audio tapes, video tapes, motion picture films, computer floppy disks, metal coatings and photosensitive films;

Electrical insulation materials, capacitor films, flexible printed circuit boards and membrane switches and other electronic and mechanical fields.

2. The application of packaging bottles: its application has been developed from the initial carbonated beverages to the current beer bottles, edible oil bottles, condiment bottles, medicine bottles, cosmetic bottles, etc.

3. Electronic appliances: manufacturing connectors, coil bobbins, integrated circuit shells, capacitor shells, transformer shells, TV accessories, tuners, switches, timer shells, automatic fuses, motor brackets and relays, etc.

4. Auto parts: such as switchboard covers, ignition coils, various valves, exhaust parts, distributor covers, measuring instrument covers, small motor covers, etc., can also be manufactured by using PET's excellent coating properties, surface and rigidity Exterior parts of cars.

5. Mechanical equipment: manufacturing gears, cams, pump housings, pulleys, motor frames and watch parts, and can also be used as microwave oven bakeware, various ceilings, outdoor billboards and models, etc.

6. The molding process of PET plastic can be injection molding, extrusion, blow molding, coating, bonding, machining, electroplating, vacuum metal plating, and printing.

PCB performance specification

1. Printed circuit board

Printed circuit board (PrintCircuitBoard, abbreviated as PCB), usually refers to a bare printed circuit board. According to the number of layers of the printed circuit, it can be divided into single-sided printed circuit board, double-sided printed circuit board and multilayer printed circuit board;

According to the structure category, it can be divided into flexible printed circuit boards, flexible printed circuit boards and rigid-flexible printed circuit boards. The printed circuit board is the carrier of the circuit interconnection and installation of the printed circuit board assembly (PrintCircuitBoardAssembly, abbreviated as PCBA). Sometimes it also refers to the circuit board containing the components, namely PCBA.

2. The structure of rigid multilayer PCB

A rigid multi-layer PCB is composed of several circuits and insulating layers, and the interlayer connection is achieved through electroplated holes.

3. PCB manufacturability design

The manufacturability design of the PCB mainly solves the problem of the processability of the PCB. The purpose is that the designed PCB can be manufactured at one time and meet the process requirements of assembly and use.

The manufacturability design of PCB is mainly based on the design of small line width/line spacing, small pad ring width, small solder mask bridge width and gap according to the processing capacity of the PCB factory. The prerequisite is to understand the production methods, principles and process characteristics of PCBs, and to master economical and advanced processing capabilities.