PCB Layout relies on PCB circuit schematics to realize the functions required by circuit designers.
Excellent PCB Layout design can save production costs and improve PCBA performance. Is this PCB Layout design? PCB Layout is the layout of printed circuit boards.

PCB Layout design is part of hardware design, and it is also a very important part; in hardware circuit design,

It is an absolutely important indicator that affects performance. Now many PCB Layout engineers complete PCB Layout according to the constraints provided by
PCB Layout engineers or product hardware engineers.

ZBPCB provides excellent PCB Layout services.
Our expertise ranges from minimizing the number of layers for low-cost, high-volume products to complex circuit boards with more than 48 layers.
We have the experience and training to correctly design the design parts that are sensitive to noise.

ZBPCB provides professional design solutions covering all aspects of PCB layout, including the following circuit board technologies:

Single-layer PCB, 2-layer PCB, Multi-layer PCB, High-speed backplane PCB, Rigid-flex PCB, Flexible PCB, HDI PCB, Blind and buried microvia PCB,
Microvia controlled impedance stacked PCB, Matched length/timing, Analog and digital, Controlled crosstalk timing, Signal integrity analysis, PCB simulation, Differential/balanced torque.

How to make PCB layout?

How to make PCB layout according to the circuit diagram?

1. The basic requirement of PCB layout is to ensure that all networks are effectively connected.
Connectivity is easy to achieve, and efficiency is a vague concept. In fact, there are only two types of signals in the circuit, digital and analog. For digital circuits,
it is to ensure sufficient tolerance to noise, and for analog signals, it is to minimize loss. Layout is to place circuit components reasonably. How to place them reasonably? A simple principle is to clearly divide the modules, that is, people with a certain circuit foundation can see which part is used to achieve what function after getting your PCB.

2. Specific design steps for PCB layout: First, according to the schematic diagram, generate the initial PCB file, complete the PCB pre-layout,
give the PCB layout a related area, and then tell the structure. The structure is determined according to the area we give, and then dare to make specific constraints based on the overall design of the structure.

3. Before PCB wiring, it is generally necessary to understand the cascade design of the entire PCB board, that is,
to design all wiring layers into an optimal wiring layer, a suboptimal wiring layer, and an optimal wiring layer, that is, adjacent complete ground layers.
This layer is generally used for the distribution of important signals (including all DDR signals, differential signals, analog signals, etc.),
and other signals (I2C, UART, SPI, GPIO) go through other layers to ensure that only circuit-related signals (such as DDR, network ports, etc.) are in important areas.
Draw the board edge, locate the door, some restricted areas according to the structural constraints, and then complete the placement of the connectors.

4. Principles for placing PCB components: Generally speaking, the main control MCU is placed in the middle of the board,
so the interface circuit should be placed close to the interface (such as mesh, USB, VGA, etc.). Most interfaces have ESD protection and filtering processing.
The principle to follow is protection first, then filtering.

5. PCB power module, generally put the main power module at the power input end (such as 5V system), and the discrete power module (such as 2.5V powered by the module circuit)
can be placed in the dense place of the power network itself according to the actual situation.
The power supply and power supply circuit must first ensure sufficient load capacity, that is, the entire circuit of the power supply should be as thick and short as possible.
From the EMC perspective, the circuit is a loop, forming a loop antenna, radiating outward, so as to minimize the loop area.

6. For PCB layout, some internal circuits do not have plug-ins. We generally follow the basic principles of high-speed and low-speed partitions, analog and speed partitions,
interference sources, and receptor sensitive partitions.

7. For single circuit modules, the direction of current flow should be followed when designing the circuit.

1. ZBPCB’s PCB layout approach will ensure that product performance, time to market, unit cost and production yield are met.
ZBPCB will perform simulations to provide a “first-time success” guarantee in key areas such as impedance, crosstalk and signal integrity. This exercise will eliminate the impact of rework on cost and time. Our simulation results will enable you to take design steps that significantly reduce design risks.

2. PCB pre- and post-system level signal integrity

Timing and crosstalk analysis, termination topology and strategy, line generation, margin analysis (SI and timing), stacking and routing guidelines, decoupling and power transfer analysis, ball/bump/pad allocation, design review of good engineering practices

3. Typical work includes

Working with customers to develop and understand the system environment, developing key signal quality checks, 2D/3D electromagnetic modeling, clock system design/review, pre-layout solution space analysis, defining decoupling strategies, pre-/post-electrical system layout design and analysis, I/O buffer selection, termination topology and definition, identifying key timing requirements, creating libraries (IO buffers, interconnects, packages, connectors), developing post-physical and electrical design rules, layout verification, energy integrity analysis

4. Zbpcb has a professional PCB design team, professional staff and professional services; the average industry experience per person is more than 8 years, and senior staff has more than 15 years.

Zbpcb mainly uses Cadence Allegro, pad, PROTEL and other software, and can independently complete the PCB layout design of high-speed, high-density, digital-analog hybrid electronic products such as PC motherboards, industrial control boards, notebook motherboards, medical equipment, mobile phones, digital cameras, communication electronics, optical networks, etc.

ZBPCB’s engineers have an extremely detailed and in-depth understanding of multi-layer PCB boards, and have a deep understanding of the structure and routing rules of high-end PCB boards with blind and buried holes.

5. Bus involved

I2C bus, SPI bus, CAN bus, ISA bus, EISA bus, VEAS bus, PCI bus, VME bus, VPX bus, RS232, RS485, RS422 bus, USB bus

6. High-speed serial bus involved

PCIe, SIPO, SATA, SAS, SFP, XAUI and other high-speed serial lines, the frequency range is from 1.5gbps to 28gbps, the signal speed can reach 1g-10g

7. Industrial control projects

We have rich experience in PC, PLC, DCS, FCS, CNC, high-power x86 architecture, low-power arm architecture;

Haswell, sandy bridge, core, bay trail are all processed.

8. Communication equipment

Focus on high-speed PCB design, with more than 10 years of experience in signal processing integrity, energy integrity, and overall layout planning;

The main control platforms include FBGA, arm, DSP, etc., and the main design areas are CPCI, ATCA, VME, and PXI;

We have rich experience in processing SFP10G optical ports, high-speed connectors, and high-speed signals (3.125G 5G 6.25G 10G);

Signal processing is based on reducing crosstalk, reflection, and loss.

9. Consumer electronics

Focus on the calendering and process requirements of HDI blind hole design;

The main control platform design includes Intel, Qualcomm, and Multi-use RK;

We have rich experience in RF signal processing (2.4G, 5G WiFi, GPS, 3G, IQ signals);

We have rich experience in electrostatic protection, and deal with problems such as static electricity, signal interference and crosstalk according to IEC61000-4-2/GB17626.2 standards.

Security camera products

Focus on signal integrity and electromagnetic interference;

Design main control platform: Hisilicon Ti;

In the field of design, we design high-definition network cameras and high-definition NVR matrix cameras;

In terms of signal processing, video and high-speed audio signals are kept away from interference sources such as heat sources, ensuring quality while ensuring beauty.

10. Automotive electronics

Focus on PCB design of automotive peripheral electronic equipment;

Design products include car computers and driving recorders;

Main control platforms include Ambarella, Lianyong, Quanzhi, Lingyang, etc.;

11. Product design

Solutions such as rearview mirror, single lens, dual lens, dual line, dual 1080p, etc.

12. Reverse engineering

Reverse engineering of PCB due to loss of film or schematics is one of our specialties. We can handle complex multi-layer boards using computerized network table generators and scanning processes. Usually we can create schemes, new layouts, art drawings, and improvements to old, outdated designs. New chips can be replaced and new functions can be added. This includes fine pitch, double-sided PCB, multi-layer PCB.

Zhibo Microwave Circuit has a highly qualified design team with an average of more than 10 years of professional design experience.
The service areas cover network and communication, industrial control/IPC, computer/server, wafer test manufacturer/IC evaluation board, scientific research and development,
Medical equipment, consumer electronics and other fields. With perfect design process, strict quality control standards, high-quality and fast service,
We have established long-term cooperative relationships with many customers and won the recognition of customers!

Zhibo Microwave Circuit provides physical printed circuit board layout services to customers.
Zhibo Microwave Circuit’s design team can work with your engineers to provide layout services to customers.
Zhibo Microwave Circuit’s design team can work with your engineers to provide PCB layout according to your schematics and related network lists,
Or work with our design engineers to provide complete turnkey integrated electronic PCB design and PCB layout.
We provide one-stop PCB to PCBA services to shorten the design cycle, improve product reliability, and ensure that your products are on the market in time.