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PCIe circuit board

A circuit board and intermediate circuit technology, applied in the server field, can solve the problems of complex PCIe design and routing bottlenecks, and achieve the effects of reliable design principle, reduced number of vias, and simple structure

Inactive Publication Date: 2022-02-15
INSPUR SUZHOU INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are a lot of wiring on the main board (Host), and the design of the key PCIe is complicated, so it is easy to encounter the bottleneck of wiring.

Method used

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  • PCIe circuit board

Examples

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Embodiment 1

[0025] Please refer to figure 1 In this embodiment, the present embodiment provides a PCIe circuit board including: a first PCIe board (Host) and a second PCIe board (Device), the first PCIe board and the second PCIe board connected to the high speed connector including the first Sub connector (this connector is a high-speed connector, can be used in 50 GHz or less) and the second sub-connector (this connector is a high speed connector, can be used for 50 GHz or less), the first sub-connector is connected to the second sub-connection Connect by Cable cable; the first sub-connector connects the first PCIe board, and the second sub-connector connects the second PCIe board. The first sub-connector and the second sub-connector each include a protective housing and an intermediate circuit board, and the intermediate circuit board is disposed inside the protective housing, and there is a communication capacitor on the intermediate circuit board. Specifically, the intermediate circuit bo...

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Abstract

The invention relates to the technical field of servers, and particularly provides a PCIe circuit board which comprises a first PCIe board and a second PCIe board. The first PCIe board and the second PCIe board are connected through a high-speed connector, the high-speed connector comprises a first sub-connector and a second sub-connector, and the first sub-connector is electrically connected with the second sub-connector; the first sub-connector is connected with a first PCIe board, and the second sub-connector is connected with a second PCIe board; the first sub-connector and the second sub-connector are respectively provided with an AC coupling capacitor. According to the invention, the number of the via holes in the PCIe board can be effectively reduced, so that the routing efficiency is improved.

Description

Technical field [0001] The present invention belongs to the field of server, and more particularly to a PCIe circuit board. Background technique [0002] Rate increase brings the challenge of channel design, with AC CAP on the link under the PCIe specification. The role of AC coupling capacitors is to provide a DC bias, filter out the DC component of the signal, so that the signal is aligned with respect to 0 axis. Increasing the AC coupling capacitance is definitely better communication between the two levels, which can improve the noise tolerance. There are many of the topography on the link, which may be a panel panel, or connect it through a Cable. Many PCIe traces are routinely designed in the inner layer, but the CAP is designed to the top of the PCB board. So you must add a number of via holes to do replacement at levels. But the motherboard (Host) is in a lot of traces, the key PCIe design is complicated, and it is easy to encounter the bottleneck of the trace. Inventive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/02H05K1/11
CPCH05K1/0213H05K1/115
Inventor 何宽鋐蔡怡君王敬文
Owner INSPUR SUZHOU INTELLIGENT TECH CO LTD
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