Hermetically Gastight Optoelectronic or Electro-Optical Component and Method for Producing the Same

a technology of optoelectronic or electrooptical components and gastightness, applied in the direction of photometry, lighting and heating apparatus, instruments, etc., can solve the problems of exacerbated effect, drift in measured values, material change of sensors, etc., and achieve the effect of improving the protection of optoelectronic and electro-optical units

Pending Publication Date: 2021-02-11
MICRO HYBRID ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The solution enables reliable measurements in harsh environments by ensuring a robust, gastight connection and beam path, maintaining measurement tolerances for extended periods at high temperatures and in corrosive conditions.

Problems solved by technology

Particularly when measurements are carried out at temperatures above room temperature, the materials of the sensors can change and drift can occur in the measured values taken by the sensors.
This effect is exacerbated when the gases or gas mixtures have a corrosive effect on the materials of the sensors.
In this regard, a particularly high content of water vapor and the presence of oxygen or radicals have a detrimental effect on the sensors.
The same set of problems applies to IR emitters.
However, the electronic component is not suitable for housing an optoelectronic or electro-optical converter element because no beam path exists between the converter element and a measuring environment.
However, for the reasons mentioned above, the arrangement (means for protecting against spray water which are not formed in a gastight manner) disclosed in DE 20 2009 006 481 U1 cannot be used at temperatures substantially above room temperature or in environments with corrosive media.

Method used

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  • Hermetically Gastight Optoelectronic or Electro-Optical Component and Method for Producing the Same
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  • Hermetically Gastight Optoelectronic or Electro-Optical Component and Method for Producing the Same

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second embodiment

[0068]the electronic component according to the invention shown in FIG. 4 is outfitted with a first converter element 7.2 and a second converter element 7.3. An orifice 5 is provided in housing cap 4 above first converter element 7.2 and second converter element 7.3. The two orifices 5 are covered and closed in a hermetically gastight manner by a common window element 10. There is a first beam path 8.1 between the first converter element 7.2 and the orifice 5 provided above the latter and there is a second beam path 8.2 between the second converter element 7.3 and the orifice 5 provided above the latter. An optical filter 11 is arranged in the two beam paths 8.1, 8.2 at a distance from orifices 5 such that an intermediate space 12 is formed between optical filter 11, orifices 5 and the window element. The intermediate space 12 communicates with the interior space 6 through a channel 13. Farther downstream along the two beam paths 8.1, 8.2, there is arranged in each instance a furthe...

sixth embodiment

[0075]In an electronic component 1 according to the invention, an outer reflector 15 is placed on housing cap 4 above window element 10 (FIG. 8). The outer reflector 15 has a reflector holder 16 on the side thereof. Housing cap 4 is laterally surrounded by the reflector holder 16. In order to achieve a highly accurate positioning of outer reflector 15, reflector holder 16 is on the upper side of the bent circumferential edge 4.3. In further embodiments, outer reflector 15 can be bondingly connected, particularly glued, soldered or welded, to housing cap 4 over the surface, over some areas or by spots.

[0076]A first embodiment example of a measuring cell 19 using the optoelectronic and electro-optical converter element 7 according to the invention is shown schematically in FIG. 9. The measuring cell 19 has a tubular measuring cell housing 19.1 of aluminum, two through-holes 20 being provided in the side walls thereof for guiding in and guiding out a medium to be measured. The measurin...

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Abstract

A method for producing a hermetically gastight optoelectronic or electro-optical component with great robustness to heat and moisture is described. A housing cap is connected to a carrier in a hermetically gastight manner. Orifices in the housing cap are closed in a hermetically gastight manner by a window element. An electronic component with a housing has a housing cap, a carrier as base plate of the housing, and an interior space enclosed by the housing cap and the carrier. An optoelectronic or electro-optical converter element is arranged in the interior space. The housing cap is closed in a hermetically gastight manner by the carrier through a bonding connection of fused metal. The orifice is connected to the housing cap in a hermetically gastight manner by a window element along an edge metallization of the window element by a circumferential first seam of a fused metallic material.

Description

RELATED APPLICATIONS[0001]This application is a divisional application of U.S. Ser. No. 14 / 276,921, filed May 13, 2014 that claims priority to German patent application DE 10 2013 104 964.8, filed May 14, 2013, both of which are incorporated herein by reference in their entirety.FIELD AND BACKGROUND OF THE INVENTION[0002]The invention is directed to a hermetically gastight electronic component such as is known generically from DE 33 35 530 A1. The invention is further directed to a method for the production of a hermetically gastight optoelectronic or electro-optical component.[0003]In order to carry out measurements of the composition of gases or gas mixtures by means of sensors, particularly by means of infrared sensors (IR sensors), in a consistently reliable manner, the sensors must be encapsulated so as to be sealed in a gastight manner against the gases or gas mixtures to be investigated. Particularly when measurements are carried out at temperatures above room temperature, th...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): F21V31/00G01J1/04G01J1/42G01J5/04F21V7/00G01J1/02H05K5/00
CPCF21V31/005G01J1/0492G01J1/4228G01J1/0418H05K5/0095G01J5/045F21V7/00G01J1/0271G01J1/0437
InventorBIERMANN, STEFFENMAGI, ANDRÉSACHSE, PATRICK
OwnerMICRO HYBRID ELECTRONICS