PCB manufacturing has a significant impact on product quality and cost. Therefore,
It is important to consider whether the PCB manufacturer can produce high-quality PCBs from cloth at a low price.

Almost all electronic devices, from electronic watches and calculators to computers, electronic communication equipment and military weapon systems,
Use printed circuit boards (PCBs) to electrically connect integrated circuits and other electronic components.
The most fundamental success factor in the research and manufacturing of a large number of electronic products is the PCB design and PCB manufacturing of the product.
PCB design and PCB manufacturing affect the quality and cost of the product.

ZBPCB is a PCB manufacturing company that specializes in the development and manufacture of high-quality PCBs.
Focus on providing professional PCB manufacturing services to customers.
ZBPCB’s PCB manufacturing plant covers an area of 23,000 square meters and has 280 employees, of which more than 35% are professional technicians.
ZBPCB specializes in high-frequency microwave PCBs, HDI PCBs, IC carrier boards, rigid-flex PCBs, multi-layer PCBs, Rogers PCBs, 6-layer PCB manufacturing, and 2-layer PCB manufacturing.
The products are widely used in Industry 4.0, communications, industrial control, digital, power supplies, computers, automobiles, medical, aerospace, instruments, meters,
Internet of Things and other fields.
Our customers are located in China, Taiwan, South Korea, Japan, the United States, Brazil, India, Russia, Southeast Asia,
Europe and other parts of the world. In terms of PCB manufacturing, zbpcb continuously improves PCB manufacturing process and solves PCB technology and PCB manufacturing problems.
ZBpcb always adheres to the purpose of manufacturing high-quality PCB products.
ZBpcb adopts advanced PCB equipment and PCB production lines to become the best PCB manufacturing company in China.

PCB fabrication service factory

What is the PCB fabrication process?

The PCB manufacturing process is relatively complex and covers a wide range of areas, from simple mechanical processing to complex automated processing, involving common chemical reactions, photochemistry, electrochemistry, thermochemistry and other processes, computer-aided design (CAM) and other knowledge.
In addition, there are many process problems in the production process, and new problems will be encountered from time to time. Some problems disappear without finding out the cause.
Since the PCB process is a discontinuous assembly line, any problem in any link will cause the entire line to stop production.
Or it will cause a large amount of waste. If the PCB is scrapped, it cannot be recycled. The work pressure of process engineers is relatively high,
So many engineers have left this industry and turned to PCB equipment or material suppliers for sales and technical services.

PCB substrate is an insulating material that is not easy to bend, so the small circuit material seen on the surface is copper foil.
During the PCB production process, the copper foil initially covers the entire board and partially covers the board.
After etching, the remaining part becomes a small mesh circuit, which is called a conductor pattern or wiring, providing circuit connections for the details on the PCB.

In order to fix the parts on the PCB, we solder their pins directly to the wiring. On the most basic PCB (single-sided board),
The parts are concentrated on one side and the wires are concentrated on the other side.
Therefore, it is necessary to punch holes in the board so that the pins can pass through the board to the other side, so the pins of the parts are soldered on the other side.
Therefore, the front and back of the PCB are called the component side and the welding side.

If some parts on the PCB need to be removed or reinstalled after production is completed, then sockets will be used when installing the parts.
Since the sockets are directly soldered to the circuit board, the parts can be disassembled and assembled at will.

For more details of the PCB fabrication process, please Download the PCB fabrication process PDF – zbpcb-fabrication-process.pdf

PCB fabrication process

In the electronic product processing industry, PCB board is one of the indispensable key electronic components.
There are many types of PCB boards, such as high-frequency PCB boards,
Microwave heating PCB boards and other types of printed PCB boards have gained a certain reputation in the sales market.
PCB processing companies have unique manufacturing processes for each sample. But generally speaking, the following three factors must be considered in PCB board production and processing.

1. Selection of PCB boards

PCB boards can be divided into organic chemical materials and inorganic materials.
Each raw material has its own unique advantages.
Therefore, the selection of PCB boards needs to consider the following factors: dielectric properties, copper foil types, base groove thickness, production and processing characteristics, etc.
Among them, the surface thickness of the copper foil is the primary condition affecting the performance of the PCB.
Generally speaking, the thinner the thickness, the more convenient the etching process and the higher the accuracy level of the drawing.

2. Setting of PCB process

The natural environment of the PCB process workshop is a very critical aspect. In addition,
The control of working temperature and relative humidity of the air is also an important factor.
If the working temperature changes too obviously, it may cause the board on the hole to break.
On the other hand, if the relative humidity of the air is too high, the nuclear energy will cause serious damage to the board with strong water absorption capacity,
Which is manifested in the dielectric performance level. Therefore, during the PCB processing process, appropriate natural environment standards must be maintained.

3. Selection of PCB processing technology

PCB processing is extremely susceptible to damage from various factors. The number of layers, hole processing technology, surface coating scheme, etc.
In the production and processing process may damage the quality of the PCB finished product. Therefore, in the natural environment of this production process,
PCB processing is a comprehensive manufacturing machinery and equipment feature,
According to different PCB board types and production and processing requirements for flexible adjustment.

Generally speaking, PCB processing must consider the selection of board materials, production process settings, production process selection, etc.
In addition, PCB board construction material schemes and cutting methods are also aspects that must be carefully selected,
Which are closely related to the glossiness of the finished power circuit package printed board.

What are the common mistakes in PCB fabrication, and how to avoid them?

1. Overlapping pads.

a. Causes duplicate holes. Multiple holes are drilled in the same place, causing pads to break and damage.

b. In multi-layer PCBs, the connection board and the isolation board are in the same position, so the PCB is displayed as isolated and connected incorrectly.

2. Irregular use of graphic layers

a. Violation of conventional design, such as the bottom component surface design and the TOP layer welding surface design, is easy to mislead.

b. There is a lot of garbage in the design of each layer, such as broken wires, useless borders, and labels.

3. Unreasonable characters

a. The characters cover the SMD pads, causing inconvenience to PCB continuity detection and component welding.

b. The characters are too small, making silk screen printing difficult, the characters are too large, overlapping, and difficult to distinguish. The font is generally > 40mil.

4. Set the aperture of a single pad

a. Single-sided pads generally do not have drilling holes, and their apertures should be designed to be zero.
Otherwise, when generating drilling data, the coordinates of the hole will appear at this position, and special instructions should be given when drilling.

b. If a single-sided pad needs to be drilled but the aperture is not designed, the software will treat the pad as an SMT pad when outputting electrical and formation data,
Resulting in the loss of the inner isolation board.

What files are sent to the PCB fabrication factory?

If you want to get the PCB production cost, you must send the PCB specifications to the PCB production factory.
If you need PCB production, please send the original PCB files (such as (flies.pcb, flie.docpcb) or Gerber files) and PCB production drawing instructions to the PCB production factory.

The PCB production drawing instructions should specify the number of PCB production, PCB thickness, copper thickness, PCB color, surface treatment,
how to PCB assembly copy, how to deliver, required delivery date, etc.

If you don’t have a PCB production instruction example, ZBpcb has prepared a PCB production drawing example for you; please click to download the PCB production instruction example.

Zhibo Microwave Circuit has passed ISO9001, UL, RoHS and other quality management system certifications.
Our production line uses imported precision circuit board manufacturing and testing equipment, has an experienced PCB manufacturing technology team,
And has formed a complete guarantee system and strict quality management. PCB is manufactured strictly in accordance with the zbpcb secondary standard or
IPC tertiary standard to ensure that the PCB meets customer quality requirements, and advocates the PCB quality concept of “excellence, prevention first”,
Improves PCB production efficiency, saves costs and working hours, and provides customers with the best quality PCB production services.

Zhibo Microwave Circuit is a professional PCB fabrication manufacturer; you can request a PCB fabrication quote here.
Please contact ZBPCB or send the Gerber files and PCB fabrication drawing instructions to zbpcb. We will get back to you as soon as possible.