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Shell bushing

A device and signal transmission technology, applied in the field of through-pieces, which can solve the problems of electrical limitations, changes in electrical response, and inability to use, and achieves the effect of good response and reduced height

Active Publication Date: 2016-01-20
THALES SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, feedthroughs cannot be used for 3GHz signals
[0014] In summary, this feedthrough has the following disadvantages: firstly, it is very difficult to manufacture; moreover, it has electrical limitations (for frequencies above 2 GHz); finally, the overall height of the package without a base is unacceptable, Also not compatible with known manufacturing methods
However, due to the presence of resin with a high dielectric constant on the wire 202a, there is a risk of cracking, delamination under temperature cycling, and changes in electrical response

Method used

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Examples

Experimental program
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Embodiment Construction

[0030] Figure 4 A cross-sectional view of a first embodiment of a feedthrough according to the invention is shown. Feedthroughs in the wall 203 of the power package allow signal lines to pass through. The package includes a base 204 . Wall 203 delimits the interior and exterior. The feedthrough includes a first signal line part 202a' outside the package, a second signal line part 202b' inside the package, and a third signal line part 202c' connecting the two other parts 202a', 202b'. The first portion 202a' is offset from the wall so as to comply with a first predetermined safety distance from the wall. The entire length of the third portion 202c' is buried.

[0031] The third signal line portion 202c' is shifted in height relative to the first signal line portion 202a'.

[0032] The first safety distance is used to prevent secondary emission multiplication outside the package.

[0033] In practice, the multilayer feedthrough includes a first layer 401 a that is in cont...

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PUM

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Abstract

The invention relates to a sealing bush for a wall (203) of a power housing, comprising a base (204), the wall (203) defining an interior and an exterior, said sealing bush comprising a first portion (202a' of a signal line outside the housing ), the second part (202b') of the signal line inside the shell, and the third part (202c') of the signal line connecting the two other parts (202a', 202b'), the bushing is characterized in that the first One part (202a') is offset from said wall so as to ensure a predetermined safety distance, and the entire length of a third part (202c') is embedded in said device.

Description

technical field [0001] The present invention relates to the field of power supply packages and in particular to feedthroughs provided in these packages. Background technique [0002] figure 1 The sealed power package is shown. [0003] The package comprises a metal base 100 on which is placed a metal compartment comprising four walls. Two sealed feedthroughs 101 and 102 are located in opposite walls each, allowing microwave signal lines (not shown) to enter and exit in most cases. [0004] The sealed feedthrough 104 allows transmission of low frequency signals such as power or control signals. During the stages of assembling the different components, the metal grid 103 allows these different signals to be connected together, thereby preventing electrostatic discharge. [0005] Such micropackages are used in the microwave field to provide electrical functions on a die basis (eg high power amplifiers). [0006] figure 2 A cross-sectional view of a prior art feedthrough ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L23/10
CPCH05K5/0247H05K5/069H01L2224/48091H01L2224/48227H01L2924/15192H01L2924/00014
Inventor C·德勒冯O·旺迪耶D·内沃
Owner THALES SA