Why Choose IBE:

 

√ Over 17 years PCBA/PCB assembly experience
√ One-stop PCB assembly service
√ More than 150 PCBA equipment and 20 PCB assembly lines
√ Strict and comprehensive quality inspection
√ No quantity restriction (No MOQ)
√ Fast and on-time delivery time
√ The lowest factory price
√ Partner of many world-renowned brands 

IBE PCBA service series - semiconductor industry

Semiconductors empower almost every industry, and are found in almost every electronic device, including mobile phones, automobiles, and home appliances. IBE has serviced many semiconductor company and provided chips and PCB for them in the past years.

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Delivery on time

With its own workshop of 70,000 square meters, the monthly production capacity of PCB reaches 100,000 square meters, which can meet all orders from samples to batches.

Provided the service of manufacturing high-difficulty boards

Specializing in mass production of various high-difficulty, high-precision density circuit boards, the products cover consumer electronics, industrial control, medical equipment, military, automotive electronics, communications and other fields.

Quality Assurance

We have complete ISO9001, ISO13485, ISO14001, IATF 16949, UL and other system certifications, and our products meet environmental protection requirements.

Professional customer service team

We have a complete and user-friendly pre-sales and post-sales management system, which can quickly and comprehensively respond to the individual needs of customers, and provide customers with technical support, production operations and order services 24 hours a day.

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Semiconductors are the top of the entire electronic information industry chain and the basis for the operation of various electronic products. For example, a diode is a device made of semiconductors, and it is also an important component in semiconductor PCBA.

Semiconductors refer to materials with electrical conductivity between conductors and insulators at room temperature. They can be divided into four categories: integrated circuits, optoelectronic devices, discrete devices and sensors. Scientists add different substances to semiconductor materials to make them conduct electricity differently. Semiconductors with different conductivity are combined to create various types of transistors.

What is semiconductor PCBA?

What-is-Semi-Conductor-PCBAPCBA is a short form for printed circuit board assembly and semiconductor is the material of the board so in this type of PCB, electronic components are assembled on semiconductor board. Various manuals and integrated parts are used in a semiconductor PCBA production process. It is really important to understand the fact that making a semiconductor PCBA is quite different from the semiconductor PCB manufacturing process.

It uses various steps including Designing PCB and PCB Prototyping mechanisms. Soldering is the last step done on the semiconductor PCBA to finally attach all kinds of electronic components on to the board so that the semiconductor can be used for further applications.

What are semiconductor PCBs used?

We usually refer to metals with good conductivity such as gold, silver, copper, iron, tin, aluminum, etc. as conductors.At the same time, materials with poor conductivity, such as coal, artificial crystals, amber, ceramics, etc., are called insulators.

Then, we can simply refer to the material between conductors and insulators as semiconductors. Common semiconductor materials include silicon, germanium, gallium arsenide, etc. Silicon is the most influential one in the application of various semiconductor materials. Semiconductors are very important materials in PCBA because selection of the material of the board plays a crucial part in overall functioning of the PCBA.

Semiconductors are usually materials which have an electrical conductivity that is more than an electrical insulator but less than of a electrical conductor. Semiconductor boards ensure improved interconnections between the components placed on it and it is a primary purpose of any PCBA. Multiple materials are popular for being used in PCBA as semiconductor. Some of these materials are silicon and germanium. Better interconnections are important in order to make the PCBA more versatile and multipurpose for the user.

At present, in the semiconductor industry, Japan has a temporary advantage in upstream, while the United States is the strongest in technology research and development, while South Korea and Taiwan are relatively strong in foundry mass production, and China is also catching up.
What-are-semiconductor-PCBs-usedThe production and scientific research of semiconductor materials, devices, and integrated circuits have become an important part of the electronics industry. In terms of product research and development and new technology development, the more important areas include:

● Power Electronics: Semiconductor PCBs are now widely used in smart grids, new energy vehicles (power control units (PCU), inverters, DC-DC converters, on-board chargers), rail transit, renewable energy development, industrial motors, data Centers, household appliances, mobile electronic equipment and other aspects of the national economy and national life.

● Optoelectronics: Liquid crystal displays, optocouplers, LED industries, optical fibers, receivers and connectors for optical transmission systems, cameras, projectors, etc.;

● Microwave radio frequency: more used in high-tech fields, such as automotive radar, satellite communication, early warning detection, military, network communication, etc.

● Integrated circuit: It is an important field in the development of semiconductor technology and has developed to the stage of large-scale integration. Tens of thousands of transistors, a microprocessor or other complex circuits can be fabricated on a silicon wafer of a few square millimeters.

Components sourcing for a semiconductor PCBA

Various components are joined together and integrated on a PCB to make a semiconductor PCBA. Various steps and protocols are involved in the assembly process which we will discuss further in this article. The very first thing needed to do is the PCB Design basics where the design is to be finalized.
Components sourcing for a Semi-Conductor PCBA

PCB design basics

The foundation, which is made up of numerous layers and is the most fundamental component of the PCB, is where the semiconductor PCBA procedure always begins. Each layer is important to the finished PCB’s functionality. These layers alternate between:

Substrate

A PCB’s foundational component. It ensures the stiffness of the PCB. There are two types of PCBs: double or single sided PCBs. Copper is the conducting material used on these PCBs to create traces that can conduct electricity. In a double-sided PCB, both sides are coated with a thin layer of copper while others are only coated on either side.

Solder mask

Copper particles are protected from accidental contact with other conductive materials by the insulation. Solder mask is the green hue visible on majority of the PCBs, so this is done to mask the copper layer beneath from any accidental conduction. In simplest terms, the soldering is done to keep the components intact, so they do not displace while the circuit is running.

Silkscreen

This aids in describing the purpose of each board component. This is usually done to represent the symbols and labels that are important for a PCB and this layer is usually the topmost layer on any PCB.
Substrate is the only differentiating feature on most of the PCB because all other features and generally the same on all PCB. Each designer’s desired features for their finished product, like affordability and bendability, influence the substrate material of a PCB.

Types of PCB

There are three main types of semiconductor PCB being used in the electronic industry.

Single sided PCB, Double sided PCB, Multilayer PCB, Rigid PCB, Flexible PCB, Rigid-flex PCB, Metallic Core PCB,Aluminum PCB, Ceramic PCB, Glass PCB, High-tg PCB, High frequency PCB, HDI PCB, LED PCB…
If you want to know more types of PCB or PCBA service, you can browse our website or contact us directly.

Steps in semiconductor PCBA process

PCB-assembly-processFor detailed steps and operations, see other articles on our website. The production process includes these steps:
SMT solder paste printing→SMT patch→SMT reflow soldering → AOI inspection/QC → plug-in → wave soldering → post soldering → cleaning → ICT test → assembly → functional test → packaging → QA → warehousing → shipment

Inspection and quality control

After the surface-mounted components have been soldered into place during the reflow procedure, the completed PCBA has to be tested for functionality. Movement during the reflow process usually results in connections being partially or completely disrupted. Sometimes, this movement might cause circuit components that shouldn’t be coupled to combine, which can lead to shorts. Searching for these errors and misalignments can be done using any of the several inspection procedures.
Inspection_and_quality_control
The most typical methods of inspection include:

Manual checks

Although the approaching tendency of automated and intelligent manufacturing, manual inspections are still used in the semiconductor PCB assembly process. An in-person visual examination by a developer is an efficient way to guarantee the cleanliness of a PCB following the reflow process for smaller quantities. However, as the quantity of inspected boards rises, this process becomes more and more inefficient and inaccurate. Over an hour of looking at such tiny components can cause eye fatigue, which reduces the accuracy of examinations.

Automatic optical inspection

For larger batches of semiconductor PCBA, automatic inspection is a better inspection technique. An AOI machine, also known as an automated inspection machine, employs several powerful cameras to “see” PCBs. To view solder connections, these cameras are set up in various configurations. A lower-quality solder can be identified by the AOI because different types of soldered connections reflect light differently. The AOI processes many Boards in a brief amount of time thanks to its extremely fast processing speed.

X-ray inspection

X-ray inspection is yet another technique used in inspection. This less popular inspection technique is most frequently utilized for semiconductor PCBs that are more intricate or have multiple layers. An observer can visualize lower layers and see-through layers with the help of an X-ray to find any potential problems that may be concealed.

Final inspection and functional test

This is the last step done in the procedure to check whether the semiconductor PCBA is working as per the requirements because sometimes any human or mechanical error while soldering or any other step can lead to unfortunate results, that is why final checking is done to make sure that complete procedure was error free, and outcome is completely functional. In this testing phase all of the conditions are thoroughly tested, in which this semiconductor PCBA is required to operate.

The parameters tested in this step are power signals, synthetic signals as well as testing against numerous, current and voltage values to see if it passes all tests. This test is sometimes also called as “Functional Test”. After this test, PCB’s which did not meet the required criteria are removed and others are labeled as perfectly functional.

PCBA technologies in semiconductor industry

In addition to the common process for making a semiconductor PCBA there are various technologies also used to determine them. These include:
● Through-hole Technology Assembly Process
● Surface Mount Technology Assembly Process
● Mixed Technology Assembly Process

Through-hole technology assembly process

Through-hole-technology-assemblyThe thru-hole assembly process is carried out using a combination of human and automatic procedures as is the case with conventional PCB assembly methods. There are certain things which are important to consider during component placement such as wearing anti-static wristbands, checking orientations and polarities of the equipment. Apart from that it also must be ensured that during the whole procedure the effect pf environment is also taken into account so that whole procedure is environment friendly and up to highest standards.

After component placement is complete, the board is put in a transport frame that matches it and will automatically inspect the board after the components are plugged in to see if the components are correctly placed. If component placement problems are discovered, it is also simple to have them quickly fixed.

The THT elements should now be precisely soldered onto the circuit board.  The board glides gently over a high-temperature, 500°F-plus wave of liquid solder. All leads or wire connections can then be made effectively, allowing thru-hole components to be securely fastened to the board.

Surface mount technology assembly process

Surface-Mount-Technology-Assembly-ProcessAs it includes a fully automatic mount semiconductor PCB assembly process from solder paste printing, pick, and place, and reflow soldering, surface mounting stands out in terms of production efficiency when compared to thru-hole mounting. A solder clip printer is used to apply solder paste to the board. A template, also known as a stencil or solder screen, makes sure that solder paste can be correctly applied to the proper locations where electronics will be installed. The quality of the soldering is closely related to the quality of the solder paste printing, PCBA manufacturers who focus on high-quality products frequently conduct inspections with a solder paste inspector after the solder paste printing.

Components or ICs are installed on the appropriate pads under the influence of the tension of the solder paste. When the PCB exits the solder paste printer, it is automatically delivered to the pick-and-place machine. Through component spools inside the machine, components are installed on PCB boards. Component reels, which rotate like film reels, deliver parts towards the machine, which sticks those pieces to the board swiftly.

The board is passed through a 23-foot-long oven after every component has been installed. Solder paste liquefies at a temperature of 500°F. The SMD parts are now securely fastened to the board.

Mixed technology assembly process

Mixed-Technology-Assembly-ProcessAs the world is progressing in technology at a high speed so more complex circuitry is required in the latest devices. New electronic devices demand greater efficiency, compact size as well as more integrated circuitry. As a result, PCBAs with just one kind of component cannot participate. At this time both surface mount and thru-hole technology have some advantages and disadvantages so to make the best semiconductor PCBA we need to employ both of these technologies combined, in order to make the best possible arrangement of components. In this way, most compact, efficient and intricate PCBs will be designed.

Benefits of a semiconductor PCB

There are a lot of benefits to a semiconductor PCB. The major ones include
•Ability to have a direct flow for electric signals
•The semiconductor PCBs are small in size which has led to the development of faster and smaller semiconductors
•The semiconductor PCBs are highly compatible with almost every kind of electronics
•They are way cheaper than vacuum tubes

How to choose the best semiconductor PCB manufacturer?

To choose the best semiconductor PCB Manufacturer there are various factors needed to be considered so that you can get the best semiconductor PCBA. These factors include:
•PCB quality provided by the manufacturer
•The ability to meet the required deadline and manufacturing built.
•Timescales on which how much time the PCBA is required to work.
•The ability to do material sourcing.
Semiconductor-PCBA

Conclusion

semiconductor PCBs are no doubt one of the best inventions in the field of modern electronics. With the usage of PCB making semiconductor PCBA is quite easy and makes sure that almost every inch of modern-day electronics are utilized in the field.

IBE provides one-stop service from PCB design, PCB prototyping, PCBA processing (including SMT and DIP ), PCBA testing, and PCBA product assembly and packaging out of the warehouse. We have 14 SMT lines, 6 Dip lines, Lab, 75000 m²factory, and 4 product assembly production workshop, which will save your time and cost.