Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for producing a sealed electrical connection in a ceramic case and image-intensifier tube comprising such a case

A technology of ceramic packaging and electrical connection, which is applied to the formation of electrical connections of printed components, electrical components, image conversion/image amplification tubes, etc., and can solve problems such as damage to the uniformity of modulation transfer functions, sealing defects, and short tube life

Pending Publication Date: 2020-06-19
FOTONIS FRANS SAS
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The package may move in the event of an impact, which may cause a geometric positioning defect of the MCP relative to the photocathode (in particular a parallelism defect, failure to respect the set distance between the MCP and the photocathode), which will Impairs the uniformity of the impulse response, in other words the modulation transfer function (MTF), which may reduce the resolution of the enhanced image
[0012] Furthermore, the metal traces of the multilayer ceramic substrate connecting the electrodes of the MCP at the external contact pins may cause sealing defects in the ceramic spacer and shorter tube life

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for producing a sealed electrical connection in a ceramic case and image-intensifier tube comprising such a case
  • Method for producing a sealed electrical connection in a ceramic case and image-intensifier tube comprising such a case
  • Method for producing a sealed electrical connection in a ceramic case and image-intensifier tube comprising such a case

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] figure 2 A cross-sectional view of an image intensifier tube according to an embodiment of the present invention is shown.

[0033] As in the prior art described above, the image intensifier tube 200 includes a ceramic package 210 forming the tube body; an entrance window 220 on the inner side of which is deposited a photocathode; and an exit window on which a phosphor screen is deposited on its inner side. 230.

[0034] Entrance and exit windows are usually manufactured in the form of glass blocks. The outer surface of the exit window can be connected to a bundle of optical fibers to deliver the intensified image.

[0035] The tube 200 has a substantially cylindrical shape along the OZ optical axis. Alternatively, the tube 200 may have a square, rectangular, hexagonal, or other shape in cross-section. A coordinate system (R, Z) is presented, where R is the radial direction of the tube and Z is the axial direction of the tube, parallel to the OZ optical axis, orien...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for producing sealed electrical connections passing through the wall of a ceramic case, for example a ceramic case provided on an image-intensifier tube. The method comprises a step (500) of metallising holes to obtain vias, the metallisation step comprising the deposition of an adhesion layer (510), a diffusion barrier (520) acting as metal base layer, and a wetting agent (530). For each via, a filler metal preform made of indium or a eutectic chosen among InSn, AuSn, AuGe, AgSn is provided (540) on each opening and heated to a temperature higher than the melting temperature (550) thereof, so that the molten filler metal plugs the via in order to seal it.

Description

technical field [0001] The invention relates to the field of image intensifier tube manufacture, and has application in night vision systems in particular. Background technique [0002] Night vision systems use image intensification devices that enable the observer to perceive a dark environment. More precisely, the image intensification device collects the radiation emitted by the environment (particularly small amounts of visible light and infrared radiation) and amplifies the radiation to convey the image of the environment that can be perceived by the human eye at the output. Image. The light signal from the image intensifying device at the output can be recorded by a recording device, displayed on an external monitor or directly observed by an observer. In the latter case, the image intensification device is used in night vision goggles or binoculars that are worn on a person's head to transmit the output light signal directly to that person's eyes. It is therefore g...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01J31/50H05K3/40H05K1/03
CPCH01J31/507H05K1/0306H05K3/4038H05K3/4076H01J2231/5016H05K2201/09572H05K3/4046
Inventor 斯蒂芬·佩松尼
Owner FOTONIS FRANS SAS
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com