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A low-loss differential electrode with a three-dimensional shield

A technology of differential electrodes and shielding layers, applied in the fields of magnetic field/electric field shielding, circuits, electrical components, etc., can solve the problems of limited electrode application scenarios, hidden dangers of chip flexibility and reliability, inability to process electrodes, etc., to achieve simple structure, heat dissipation, etc. Powerful and adaptable effects

Active Publication Date: 2022-02-15
WUHAN POST & TELECOMM RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in order to meet the above two schemes, the layout and design of the chip will be greatly restricted, resulting in some structures that cannot be processed around the electrodes to ensure reliability, giving flexibility in chip design And the reliability of the later use has brought great hidden dangers, which greatly limits the application scenarios of electrodes

Method used

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  • A low-loss differential electrode with a three-dimensional shield
  • A low-loss differential electrode with a three-dimensional shield
  • A low-loss differential electrode with a three-dimensional shield

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Embodiment Construction

[0022] The embodiment of the present invention provides a low-loss differential electrode with a three-dimensional shielding layer. By adding a three-dimensional metal structure around the electrode, the electrode has higher robustness, and it also has anti-interference, anti-crosstalk, and strong heat dissipation capabilities. And other advantages, a wide range of applications. The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0023] see figure 1 As shown, an embodiment of the present invention provides a low-loss differential electrode with a three-dimensional shielding layer, including a traveling wave electrode and a shielding structure. The driving form of the traveling wave electrode is a single-ended driving form or a differential driving form. The shielding structure includes two side metal shielding layers and a top metal shielding layer arranged on the top of the traveling wave electrode...

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Abstract

The invention discloses a low-loss differential electrode with a three-dimensional shielding layer, which relates to the field of optical communication devices and includes a traveling-wave electrode and a shielding structure. The driving form of the traveling-wave electrode is a single-end driving form or a differential driving form; The shielding structure includes two side metal shielding layers and a top metal shielding layer arranged on the top of the traveling wave electrode, the two side metal shielding layers are respectively located on both sides of the traveling wave electrode, and the top metal shielding layer One end is connected to the top of the metal shielding layer on one side, and the other end is connected to the top of the metal shielding layer on the other side. The traveling wave electrode is located between the two side metal shielding layers, and there is a gap between the two side metal shielding layers. . The invention is simple in structure, easy to implement and low in cost, has the advantages of anti-interference, anti-crosstalk, strong heat dissipation capability, etc., can effectively realize shielding and anti-interference of electrode signals, and is compatible with existing techniques.

Description

technical field [0001] The invention relates to the field of optical communication devices, in particular to a low-loss differential electrode with a three-dimensional shielding layer. Background technique [0002] In the transmission scenarios of electro-optical modulators and microwave radio frequency signals, it is necessary to ensure that the signal transmission lines (ie, electrodes) have strong robustness, that is, they are free from external interference. Currently commonly used SS (signal signal) double-conductor differential electrodes and GS (ground signal) single-ended electrodes, due to the problem of partial isolation and shielding without metal ground, this type of electrode structure is susceptible to interference from external structures and adjacent channels. Problems that affect signal quality such as crosstalk and resonance occur. [0003] The current mainstream solution is to try not to use structures that may cause signal interference on both sides of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K9/00H01L23/552
CPCH05K9/0058H01L23/552
Inventor 李淼峰肖希王磊张宇光
Owner WUHAN POST & TELECOMM RES INST CO LTD
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