PCB brief Introduction

PCB (Printed Circuit Board, PCB), is an important electronic components, is the support of electronic components, electronic components are electrically connected to the carrier. Because it is electronic printing production, it is called "print" circuit board. PCB which appears in almost all kinds of electronic equipment, so its design and quality control requirements for the development of standards by the IPC organization. Currently used for printed circuit board design standard IPC-2221A, does not require the use of specific materials manufacturing plate.

Circuit boards consist of an insulator which consists of one or numerous layers of material glued into a single entity. The additional layers serve as grounding to the board. The copper traces on the circuit board are either created by laying down individual lines mechanically or by coating the entire board in copper and stripping away the excess. By stripping away the excess, the needed printed circuits are left which connect electronic parts.

Many printed circuit board shops can help with the design process and offer high end features such as an auto router and trace optimizer which can drastically decrease the layout time. However, the best results for laying out a circuit board are achieved by at least some manual routing.

Custom PCB

These days, there are various kinds of circuit boards available in variety of materials and finishes, including FR4, FR4 High Temperature, Polyimide, GeTek, Rogers, Arlon, Nelco, Alumina, Ceramic, Bakelite, FR1, CEM1, and CEM5. The thickness of a circuit board varies based on the number of layers and can be as thin as 1.0mm (0.0394"). They can be single sided or multi-layered with cooper clad of 1-oz or higher. Although these are standard PCBs available in the market, yet you can get a customized circuit board to suit your needs. The key is to find the right PCB manufacturer to make the boards to your specifications.

A custom PCB can be made in several ways. For instance, flex circuit boards are designed to be very flexible. This allows the circuit board to be placed in positions which are otherwise not possible or to be used in wire systems. A PCB can also be used in satellites, spaceships and other machines in outer space. Rigid copper cores are designed in a way that conduct heat away from the sensitive parts and protect them in the extreme temperatures they experience.

Some circuit boards are designed with an interior conductive layer to transfer power to various parts without using extra traces. These customized needs are circuit boards that are ordered by companies to fulfill specific requirements with limited space. In addition, PCBs are also used by students and electronic hobbyists for their custom projects and applications.

Advantages

* Are cost-effective and highly reliable.

* Economical for high-volume production.

* Have color codes for different connections and are therefore easy to install.

* Mention the rating of the device which helps in their maintenance.

Disadvantages

* Layout work increased.

* Compared to the high-point constructed circuits or wire around the initial cost.

* PCB etching produces chemicals for the environment.

* Once printed, can not be updated, modified.

PCB prototype and small batch PCB cheap, but also to meet the needs of the market. Recent free PCB software can easily be found online. This makes it easier for amateurs to use, more efficient and professional. PCB circuit board is specifically designed for each circuit, making it very simple.