Description
Circuit boards may be called printed circuit boards or printed circuit boards, English name for the PrintedCircuitBoard (PCB), (FlexiblePrintedCircuitboard) FPC circuit board (FPC circuit board is also called the flexible PCB flexible circuit board based on polyimide or polyester film base material made of a kind of highly reliability, Excellent flexible printed circuit board. It has the characteristics of high wiring density, light weight, thin thickness and good bending. Combined with hard and soft board (reechas SoftandhardcombinaTIonplate) - with birth and development of PCB, FPC plate led to the soft hard couple, this new product. Therefore, the soft and hard combined board is the flexible circuit board and the hard circuit board, after pressing and other processes, according to the relevant process requirements combined together to form a circuit board with FPC characteristics and PCB characteristics.
Classification of circuit boards
The circuit board is divided into three large categories according to the number of layers: single panel, double panel, and multi-layer circuit board.
The first is the single panel, in the basic PCB, the parts are concentrated on one side, the wire is concentrated on the other side. Because the wire only appears on one side, this PCB is called a single-sided circuit board. Single panel is usually simple to make, low cost, but the disadvantage is that it can not be applied to too complex products.
Dual panel is an extension of the single panel, when the single-layer wiring can not meet the needs of electronic products, it is necessary to use dual panel. Both sides are covered with copper and have wiring, and the line between the two layers can be guided through the hole to form the required network connection.
Multilayer board refers to a printed board with more than three layers of conductive graphics layer and the insulating material between them are separated by layers, and the conductive graphics between them are interconnected according to requirements. Multilayer circuit board is the product of the development of electronic information technology to high speed, multi-function, large capacity, small volume, thin shape and light weight.
According to the characteristics of the circuit board is divided into soft board (FPC), hard board (PCB), soft and hard combined board (FPCB).
Circuit board structure
The circuit board is mainly composed of welding pad, through hole, mounting hole, wire, components, connectors, filling, electrical boundary, etc. The main functions of each component are as follows:
Pad: A metal hole for welding the pin of a component.
Through holes: There are metal through holes and non-metal through holes, wherein the metal through holes are used to connect the component pins between the layers.
Mounting hole: used to secure the circuit board.
Wire: Electrical network copper film used to connect component pins.
Connector: A component used to connect circuit boards.
Filling: Copper coating for ground wire network can effectively reduce impedance.
Electrical boundary: Used to determine the size of the board, all components on the board can not exceed this boundary.
Main brands include: ABB, Bailey, GE, FOXBORO, Invensys TRICONEX, Bentley BENTLY, A-B Rockwell, EMERSON EMERSON, B&R, MOTOROLA, FUANC, REXROTH, KUKA, HONEYWELL, NI, DEIF, Yokogawa, WOODWARD WOODWARD, Ryan, SCHNEIDER SCHNEIDER, Yaskawa, MOOG, EPRO, PROSOFT and other major brands
The company focuses on DCS, PLC, robot, large servo four systems
The main products are various modules/cards, controllers, touch screens, servo drivers
Company advantage: Supply imported original products, professional production of spare parts
One year warranty, fast delivery time, complete supply !！！
① 24 hours email response (12 hours);
② For shipment outside Asia, please contact the seller.
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