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A method and structure for pcb layout and routing

A layout and layout technology, applied in the field of PCB signal and power layout and wiring, can solve the problems of over-design, remaining space, unfavorable product market competitiveness, etc., and achieve the effect of improving design density, saving costs, and reducing the number of PCB layers.

Active Publication Date: 2019-03-12
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The power supply, ground, and signal of the existing design technical scheme have sufficient layout and wiring space, and some space is left. At the current stage, when the server cost is becoming more and more sensitive, there is a phenomenon of over-design, which is not conducive to enhancing product market competition. force

Method used

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  • A method and structure for pcb layout and routing
  • A method and structure for pcb layout and routing
  • A method and structure for pcb layout and routing

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Embodiment Construction

[0062] According to the accompanying drawings of the description, the present invention is further described in conjunction with specific embodiments:

[0063] A method for PCB layout and routing, the implementation steps of the method are as follows:

[0064] 1) Determine the shape of the PCB, and place the main chips in a reasonable position on the PCB, such as figure 1 As shown, it is divided into PCH and PCIE slot placement area, DIMM slot and CPU placement area, and QPI routing area (connecting two CPUs);

[0065] 2), PCB adopts 10-layer board stacking;

[0066] 3), TOP, L2, L3, L8, L9, L10 (BOT) plan the layout and wiring according to the traditional design method, of which:

[0067] The DDR of layer 3 and layer 8 will not be changed, and the QPI signal will be adjusted to layer 5 and layer 6;

[0068] After the original 12-layer design was changed to 10-layer, the high-speed lines and miscellaneous lines of the 2-layer signal layer were subtracted, and adjusted to th...

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Abstract

Disclosed are a method and a structure for layout and routing of a PCB. The method includes: arranging signal lines, a power plane and a ground plane of the PCB in combination, where a portion of a reference plane for the signal lines is configured as a ground plane for providing a reference plane and return paths for the signal lines, to save routing spates. Layout of regions for the power supply, the ground and signal lines is appropriately designed, thereby improving the design density of a board, reducing the number of layers of the PCB, and saving cost.

Description

technical field [0001] The invention relates to the technical field of PCB signal and power supply layout and wiring, in particular to a method and structure for PCB layout and wiring. Background technique [0002] With the rapid development of the Internet and big data, and the advent of the era of cloud computing, cloud computing centers and big data centers have been able to develop and grow rapidly, and the subsequent demand and use of servers and storage are also increasing. As the support of cloud computing and big data data processing and storage, servers and storage directly determine the stability of the entire system. [0003] The PCB board is the core of the server, and its design directly determines the stability of the server. PCB is mainly composed of signal lines and power supply. The signal and power supply design should be considered comprehensively during design, and high-quality PCB circuit boards should be designed while minimizing design costs. [0004...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K1/02
CPCH05K1/0218H05K1/0298H05K2201/09318H05K2201/09327H05K2201/09972
Inventor 李德恒
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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