PCB with Components

PCB is an important electronic component and the support of electronic components.


The utility model  composed of an insulating base plate. A connecting wire and a bonding pad for assembling and welding electronic components. It has the double functions of conductive line and insulating base plate.


PCBA is to process electronic components on the basis of PCB. PCBA is the finished board and a PCB is a bare board. Excellent circuit design in PCBA board can save production cost and achieve good circuit performance and heat dissipation performance.

The function of PCB is to make the program .Units that cannot operate independently become basic units that can operate independently. In addition, it is a snippet of program code in the process. In other words, the process scheduler can execute on the CPU.

The empty PCB passes through SMT loading or the whole process of dip plug-in. PCB is the only sign that a process exists.  And PCB process control block is the static description of a process. PCB is the support of electronic components and the provider of circuit connection of electronic components.

3 Electronic components

Electronic components refer to electronic components and components of small machines and instruments. It usually consists of several parts. And can be used for similar products. Components often refer to electrical appliances, radio, instrumentation and other industries in some components.


4 Classification of electronic components

1. Relay

Relay is an electronic control device with a control system and a controlled system. It is also commonly used in automatic control circuits. In other words, it is an “automatic switch” that uses a small current to control a large current. As a result, it plays the role of automatic adjustment, safety protection and conversion circuit in the circuit.

2. Capacitor

A capacitor is a “container for electricity” and a device for holding electric charges. Capacitance is one of the electronic components widely use in electronic equipment. It  widely used in DC isolation, coupling, bypass, filtering, tuning loop, energy conversion, control circuit, etc.

3. Connectors

Also called connectors, plugs and sockets in China. Generally refers to an electrical connector, that is, a device that connects two active devices to transmit current or signals.

4. Sensor

A device or device that can sense a specified measured signal. And convert it into a usable signal according to a certain law. It usually consists of a sensing element and a conversion element.

5. Inductor

The components that can produce inductance  collectively referred to as inductance elements, which  often directly referred to as inductance.

6.Industry status

The output of electronic components in China has accounted for nearly 39% of the world. The products with the largest output in the world include resistors. Such as capacitors, electroacoustic devices and magnetic materials, piezoelectric quartz crystals and smicro and special motors, electronic transformers and printed circuit boards.

With the expansion of the scale of China’s electronic information industry. Four major electronic information industry bases have taken shape in the Pearl River Delta. The Yangtze River Delta, the Bohai Bay region and some central and western regions. The electronic information enterprises in these areas  concentrated and the industrial chain  relatively complete. It has considerable scale and supporting capacity.

There are some major problems in China’s electronic materials and components industry.  There is a surplus of medium and low-grade products. And high-end products mainly rely on imports. Lack of core technology and low product profit. The scale of the enterprise is small and the investment in technology development is insufficient


7. Development trend

First of all, the automation technology for the assembly of optoelectronic devices will be the key to reduce the cost of optoelectronic devices.

Then, the manual assembly is the main factor restricting the further reduction of the cost of the photoelectric device.

Automated assembly can reduce labor costs, increase production, and save manufacturing sites. Therefore, the assembly automation technology of optoelectronic components is examined.

This will be the key to reducing the cost of optoelectronic devices.

Then automated assembly manufacturing, although considered very difficult, made big breakthroughs. VCSEL has been reported on several times in foreign specialist journals. Based on the advancement of new optical collimator and self-alignment technology.


A breakthrough has been made in the automated assembly of optical devices. And the design of optoelectronic components for automated assembly is on the rise.

Finally, in 2002, more than ten manufacturers of automatic packaging and automatic welding equipment participated in OFC exhibition. Many processes that can only be performed manually, such as welding, straightening and pressure welding, can be performed by robots.

According to Electronic Broadcasting, sales of automated assembly and test equipment will reach $1.71 billion by 2005. Seventy to eighty percent of the output of optoelectronic devices is generated by automated or semi-automated assembly. The advent of automated production lines is a sign and a necessity for the development of the optoelectronics industry.

1. Technology development trend

New components are further miniaturized. And can achieve high performance, integration, intelligence, environmental protection and energy saving.

2. Market demand analysis

With the gradual commercialization of the next generation internet. Mobile communications and digital television of the new generation. The modernization of the electronic machinery industry will bring enormous market opportunities. For the development of electronic materials and components industry.