PCB according to the board application to classify single panel, double panel, PCB multistratu; According to the material, there are flexible PCB board (flexible board), rigid PCB board, rigidity-flexible PCB board (rigid flexible board), etc. Printed Circuit Board (PCB), also known as Printed Circuit Board, is an important electronic component, is the support body of electronic components, is the supplier of electronic components electrical connection, because it is made by electronic printing technology, so it is also called Printed Circuit Board. Un PCB hè solu una piastra fina chì cuntene circuiti integrati è altri cumpunenti elettronichi.

I. Classification according to the number of circuit layers

Divided into single panel, double panel and multi-layer board. U cartulare multistratu cumunu hè di solitu 3-6 strati, è u cartulare multistratu cumplessu pò ghjunghje à più di 10 strati.

(1) Single panel

Nantu à un circuitu stampatu di basa, e parti sò cuncentrate da una parte è i fili sò cuncentrati da l’altra. Perchè u filu apparisce da solu una parte, u circuitu stampatu hè chjamatu un pannellu unicu. I primi circuiti utilizavanu stu tippu di circuitu perchè ci era parechje restrizioni strette nantu à u circuitu di cuncepimentu di un unicu pannellu (perchè ci era solu un latu, u cablu ùn pudia micca attraversà è duvia esse instradatu in una strada separata).

PCB what are the classification of printed circuit boards

(2) Double panels

U circuitu hà cablatu da i dui lati. Per cumunicà i fili di i dui lati, deve esse una cunnessione di circuitu adatta trà i dui lati, chì si chjama u foru di guida. I fori di guida sò picculi fori in un circuitu stampatu, riempiti o rivestiti di metallo, chì ponu esse cunnessi à fili da i dui lati. I pannelli doppi ponu esse aduprati in circuiti più cumplessi cà i pannelli singuli perchè l’area hè duie volte più grande è u cablu pò esse intrecciato (pò esse feritu à l’altra parte).

PCB what are the classification of printed circuit boards

(3) Multilayer board

In order to increase the area that can be wired, multi-layer boards use more single or double-sided wiring boards. Multilayer boards use a number of double panels, and put an insulating layer between each layer of the board after bonding. The number of layers on a board represents a number of independent wiring layers, usually an even number of layers, and contains the outermost two layers.

PCB what are the classification of printed circuit boards

Two, according to the type of substrate

Flexible circuit boards, rigid circuit boards and rigid-flexible bonded boards.

(1) Flexible PCB board (flexible board)

Flexible boards are printed circuit boards made from flexible substrates, which have the advantage of being bent to facilitate assembly of electrical components. FPC has been widely used in aerospace, military, mobile communications, portable computers, computer peripherals, PDA, digital cameras and other fields or products.

PCB what are the classification of printed circuit boards

(2) Rigid PCB board

It is made of paper base (usually used for single side) or glass cloth base (often used for double-sided and multi-layer), pre-impregnated phenolic or epoxy resin, one or both sides of the surface glued with copper foil and then laminated curing. This kind of PCB copper-clad foil board, we call it rigid board. Then made into PCB, we call it rigid PCB rigid board is not easy to bend, has a certain strength and toughness of the rigid base material made of printed circuit board, its advantage is that it can be attached to the electronic components to provide a certain support.

PCB what are the classification of printed circuit boards

(3) Rigid-flexible PCB board (rigid-flexible PCB board)

Rigid-flexible bonded board refers to a printed circuit board containing one or more rigid and flexible areas, composed of rigid boards and flexible boards laminated together. The advantage of rigid-flexible composite plate is that it can not only provide the support of rigid printing plate, but also has the bending characteristics of flexible plate, which can meet the needs of three-dimensional assembly.