Low cost and anti-interference dual mode laminated design method

A design method and low-cost technology, applied in computing, special data processing applications, instruments, etc., can solve problems such as signal quality degradation and high-speed line crosstalk increase, and achieve the effects of reducing interference, reducing research and development costs, and improving signal quality

Inactive Publication Date: 2015-12-30
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the disadvantage is: compared with the ordinary stack design, there is no GND plane isolation between the signal layers, which increases the crosstalk of high-speed lines and reduces the signal quality
Howe

Method used

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  • Low cost and anti-interference dual mode laminated design method
  • Low cost and anti-interference dual mode laminated design method

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Embodiment 1

[0023] Such as figure 2 As shown, a low-cost and anti-interference dual mode stack design method. In the dualstripline mode stack design, when two adjacent signal layers are simultaneously wired with high-speed signal lines, the same area of ​​the PP layer is added at the same position core to isolate the two layers of signal interference.

[0024] The traditional 12-layer board is laminated with 6 signal layers, such as figure 1 As shown, it is designed as a 12-layer board with 8 signal layers dual mode stacks, such as figure 2 As shown, when two adjacent signal layers are simultaneously wired with high-speed signal lines, a core of the same area is added at the same position on the PP layer to isolate the signal interference of the two layers.

Embodiment 2

[0026] On the basis of embodiment 1, when the method described in this embodiment does not have a high-speed signal line in two adjacent signal layers, only the PP layer is provided to reduce the usage of the core to reduce the cost.

Embodiment 3

[0028] On the basis of Embodiment 1, when the method described in this embodiment has only one layer of high-speed signal lines on two adjacent signal layers, only the PP layer is provided, which reduces the usage of cores to reduce costs.

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Abstract

The invention discloses a low cost and anti-interference dual mode laminated design method. When two adjacent layers of signal layers are distributed with high-speed signal wires at the same time in a dual strip line mode laminated design, two layers of signals are isolated to disturb by adding cores with same areas on the same positions of polypropylene (PP) layers. The low cost and anti-interference dual mode laminated design method can reduce development cost, reduces interference between two adjacent signal layers simultaneously, and improves signal quality.

Description

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Claims

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Application Information

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Owner LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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