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Method and device for estimating capability of resisting 'hydrogen poisoning'

A technology of hydrogen poisoning and ability, applied in the direction of measuring devices, instruments, scientific instruments, etc., to achieve the effects of cost reduction, fast evaluation speed, convenient analysis and control

Active Publication Date: 2014-04-23
FIFTH ELECTRONICS RES INST OF MINIST OF IND & INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Based on this, it is necessary to provide a device with good evaluation specificity, fast evaluation speed, good effect and easy operation to evaluate the ability of anti-"hydrogen poisoning" for the failure mechanism related to the hydrogen effect.

Method used

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  • Method and device for estimating capability of resisting 'hydrogen poisoning'
  • Method and device for estimating capability of resisting 'hydrogen poisoning'
  • Method and device for estimating capability of resisting 'hydrogen poisoning'

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with embodiments and accompanying drawings.

[0039] A device for evaluating the ability to resist "hydrogen poisoning", including a cavity 110, a sensing element, a sampling element 210, a vacuum element, a heating element 410, and an analysis element 510; the cavity 110 is connected with a safety valve 710, the The cavity 110 has an air inlet 112 and an air outlet 114. The cavity 110 is also provided with an opening, and the cavity 110 has a cover plate 116, a caliper 118 and a sealing ring matching the opening. The cavity 110 passes through The cover plate 116, the caliper 118 and the sealing ring are sealed, and a cover plate insulation layer 122 is also provided between the cover plate 116 and the cavity 110, and a handle 126 is also provided on the cover plate 116;

[0040] Both the sensing element and the vacuum element are connected to the cavity 110 through pipelines, the sensing element inclu...

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Abstract

The invention discloses a device for estimating the capability of resisting 'hydrogen poisoning'. The device comprises a sealed cavity, a controlling and sensing element, a sampling element, a vacuumizing element, a heating element and an analyzing element, wherein the cavity is provided with a gas inlet and a gas outlet; the controlling and sensing element, the vacuumizing element and the heating element are all connected to the cavity by pipelines; the sampling element is connected to a gas outlet of the cavity; and the analyzing element is connected to the sampling element. The method and the device for estimating the capability of resisting 'hydrogen poisoning', which are provided by the invention, realize the acceleration estimation on 'hydrogen poisoning' single failure mechanism by simulating the hydrogen content in a packaging structure and controlling the hydrogen concentration and atmosphere temperature.

Description

technical field [0001] The invention relates to the field of electrical monitoring, in particular to a method and device for evaluating anti-"hydrogen poisoning" ability. Background technique [0002] At present, there are reliability problems related to hydrogen effect (also known as "hydrogen poisoning") in hermetically packaged microwave devices (such as High Electron Mobility Transistor (HEMT) High Electron Mobility Transistor, etc.), which will affect the The effective host concentration of the device barrier layer, changing the Schottky built-in potential, and reducing the channel carrier concentration, so that the microwave device R ch Increase, I ds and g m drop, V p Drift, etc., will reduce the DC and microwave performance of the device. [0003] The schematic diagram of the process of microwave device "hydrogen poisoning" is shown in image 3 shown. [0004] The hydrogen in the packaging material is emitted into the closed cavity environment. The hydrogen gas ...

Claims

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Application Information

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IPC IPC(8): G01N33/00
Inventor 曾畅黄云廖雪阳来萍李汝冠
Owner FIFTH ELECTRONICS RES INST OF MINIST OF IND & INFORMATION TECH
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