A design method for the layout of the golden finger of the board and the server board

A server board and design method technology, applied in CAD circuit design, computer-aided design, computer design circuit, etc., can solve the problems of high bit error rate of signal transmission and low quality of high-speed signal transmission.

Active Publication Date: 2020-10-20
INSPUR SUZHOU INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] This application provides a layout design method at the gold finger of the board and a server board to solve the problems of low transmission quality of some high-speed signals and high bit error rate of signal transmission due to the layout design method in the prior art

Method used

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  • A design method for the layout of the golden finger of the board and the server board
  • A design method for the layout of the golden finger of the board and the server board
  • A design method for the layout of the golden finger of the board and the server board

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Embodiment 1

[0042] see Figure 5 , Figure 5 It is a schematic flow chart of a method for designing a layout at a golden finger of a board provided by an embodiment of the present application. Depend on Figure 5 It can be seen that the layout design method of the golden finger of the board in this application mainly includes the following process:

[0043] S1: According to the type of the GND pin on the gold finger of the board and the space between the gold finger and the GND via on the board, set the number of GND vias interconnected with the GND pin so that the GND pins can be interconnected GND via reaches the maximum number.

[0044] see Figure 6 , Figure 6 for Figure 6 It is a schematic structural diagram of the layout wiring at the golden finger in the embodiment of the present application. Generally, there are two types of GND pins on the gold fingers of server boards: single GND pins and double GND pins. Depend on Figure 6 It can be seen that, in this embodiment, th...

Embodiment 2

[0055] The present application also provides a server board, the server board includes a gold finger, and the layout design of the gold finger is carried out by the above-mentioned method. Specifically, multiple groups of GND pins are provided on the golden finger, and each group of GND pins is combined and interconnected with two or more GND vias to form a signal return path.

[0056] Among them, the GND pins on the golden finger include single-pin GND pins and double-pin GND pins. In the server board, the number of GND vias set for different types of GND pins is different. Any single GND pin and two GND vias are combined and interconnected to form a signal return path; any double GND pin is connected to three The GND vias are combined and interconnected to form a signal return path.

[0057] In any signal return path in this application, all GND vias are closely adjacent to the GND pins in the signal return path.

[0058] Further, in a signal return path, the distance betw...

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Abstract

The present application discloses a layout design method of a gold finger of a board and a server board. The design method includes: according to the type of the GND pin on the gold finger of the board, the space between the gold finger and the GND via on the board, Set the number of GND vias interconnected with GND pins to maximize the number of GND vias interconnected with GND pins; combine and interconnect GND pins and all GND vias that match GND pins to form a signal return path ;In a signal return path, place all GND vias close to their matching GND pins, so that the length of a signal return path is the shortest. Through the design method in this application, the degree of attenuation during high-speed signal transmission can be greatly reduced, and the signal return path can be effectively optimized, thereby avoiding signal insertion loss waveforms, near-end crosstalk frequency domain waveforms, and far-end crosstalk frequency domain waveforms at high A resonance point is generated in the frequency range, which is conducive to improving the quality of signal transmission, thereby improving the stability of the entire system operation.

Description

technical field [0001] The present application relates to the technical field of server board design, in particular to a design method of a gold finger layout of a board and a server board. Background technique [0002] In the field of server board design, with the increase of the high-speed interface rate, the transmission quality of high-speed signals in the channel link has attracted people's attention, and the layout design of the golden finger of the server board closely affects the transmission of high-speed signals Therefore, it is an important issue to study the wiring design of the layout at the golden finger of the server board. [0003] For the current wiring design method of the golden finger of the server board, please refer to figure 1 . Depend on figure 1 It can be seen that the current layout design method for the gold finger of the server board is mainly: each GND pin of the gold finger corresponds to a GND pin, and the GND pin of the gold finger and the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K3/00H05K1/02G06F30/392G06F30/3953
CPCH05K1/0218H05K1/0237H05K3/0002H05K3/0005G06F30/39G06F30/392H01R12/721
Inventor 武宁
Owner INSPUR SUZHOU INTELLIGENT TECH CO LTD
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