Electronic Circuit Board Selected(Latest Introducing)

Electronic Circuit Board Selected(Latest Introducing)

Abstract

An electronic circuit board connects the electronic components electrically and also supports mechanically. The electronic circuit board technology is evolving for many years. However, for a marketable product, a ruggedized board is a mandatory requirement that fulfills certain qualification standards. For a standardized product the electronics, industry has moved towards PCB. For its high reliability, low cost, good efficiency, easy availability. As well as manufacturing facilities. Although, the circuit boards were used in the industrial and even defense applications till the early 1970s.

 

Content

1.The electronic circuit board technology before

2.The PCBs for low volume

 

1.The electronic circuit board technology before

 

In early days of electronics the components were mounted over a board or sheet. Then wire wrapping technique is used to make connections between pins such as shown in fig 1.

 

Electronic Circuit Board1.png

 

Fig 1:- Wire wrapping electronic circuit board

 

Later on the components were mounted and the connections were made with connecting the pins. By using a wire and soldering them to the pins of the component such as shown in fig 2.

 

Electronic Circuit Board2.png

 

Fig 2:- Vero board type electronic circuit board

 

A printed electronic circuit board is available in many different material types. It can be manufactured under different standards. They also mechanically support the components. As well as electrically connect the components. The connectivity is, through thin sufficiently spaced copper tracks, pads and vias.

 

As well as improved significantly over the predecessors. They are produced by etching of the thin layer of copper sheet glued over the fire retardant materials. Or specialized insulating materials.

 

2.The PCBs for low volume

 

The PCBs for low volume and prototyping are also manufactured by the milling machine. Where the required copper tracks remain intact whereas extra copper is removed. The components such as resistors, capacitors, inductors, and ICs. Thay are mounted and soldered on the outer sides of PCB.

 

The thin copper connections or tracks may switch from one layer to another by vias or pads. In newer and advanced PCBs the components like resistors may be made inside the copper connections. Or inner layers of the PCB. The higher the layers in an electronic circuit board the denser the tracks and solderable components.

An electronic board is shown in fig 3.

 

Electronic Circuit Board3.png

 

Fig 3:- Printed circuit board type electronic circuit board

 

The printed electronic circuit boards require design effort that lowers the manufacturing and assembly by automated machines. Manufacturing with PCBs intends to lower cost and higher yield. When compared to other circuit production methods like wiring methods or varo-boarding. A PCB with the populated and soldered component is called a printed circuit board assembly or PCBA.