Type: Video Display Card

Material: 51141

Layers: 8

Board thickness: 2.0mm

Minimum aperture ：0.2mm

Board Thickness Hole Diameter Ratio ：10:1

Minimum hole to conductor spacing: 10mil

Surface finished: ENIG + segmented gold finger

Control difficulties: gold finger segmented thick gold plating

The main features of the video graphics card PCB include:

1. Multilayer structure

Video card PCBs are usually multi-layer designs (e.g., 4-layer, 6-layer, 8-layer or more) to provide sufficient signal paths and power distribution to ensure stable transmission of high-frequency signals.

2. Thermal Design

Since graphics cards generate a lot of heat under high loads, the PCB design usually includes heatsinks, fan interfaces, and heatpipe layouts to effectively dissipate heat and ensure that the GPU and other components operate within a safe temperature range.

3. High Frequency Signal Processing

PCB wiring design must consider signal integrity. High-speed signals need to be designed through differential pairs or controlled impedance to avoid signal interference and delay.

4. Power Management

Graphics cards require strong power supply, PCB will arrange multiple power rails and capacitors to provide stable voltage and current for GPU and memory, etc. Some cards also use multi-phase power supply design to improve power supply efficiency and stability.

5. Interface Design

The graphics card PCB has a PCIe slot for connection to the motherboard, as well as HDMI, DisplayPort and other video output ports to ensure compatibility with monitors.

6. Electromagnetic Compatibility (EMC)

Electromagnetic interference is taken into account in the design, with proper grounding techniques and signal isolation to reduce the impact on other components and circuits.

7. Test and Diagnostic Functions

PCBs are usually left with test points to facilitate electrical testing during production and maintenance to ensure product quality.

8. High Density Component Layout

Graphics card PCBs usually need to carry more components, such as GPUs, video memory, various control chips and power management ICs, so the component layout is designed to be very compact.

9. Flexibility and Compatibility

Designed with future technological development in mind, it is compatible with a wide range of specifications and standards to meet the needs of different markets.