Electro-optical assembly
AssigneeSiemens Aktiengesellschaft
InventorFranz Taumberger
Life of this patent
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Abstract
A receiver module for light waveguide transmission is mounted in a module housing with high precision without risk of contamination to optical surfaces by a film circuit including an intergrated circuit and an amplifier element being is pressed together against the housing floor by z-shaped retaining angles. The retaining angles are welded to metallized edge strips of the substrate before the introduction of the electro-optical components and are joined to the housing floor by laser welding.
Claims9
An improved electro-optical assembly containing optical components, a film circuit arranged on a substrate and having at least one electro-optical component, the assembly being contained in a sealed housing having a metallic housing floor, the improvement comprising:
- at least two metallic strip-shaped retaining angle pieces being secured to respective opposite edge strips of the substrate, said retaining angle pieces being secured planarly to a surface side of the substrate carrying the film circuit, said retaining angle pieces extending over at least a part of the respective edge strips, said retaining angles angle pieces each having an approximately z-shaped cross section and being joined to the housing floor parallel to the edge strips of the substrate by welds.
A method for manufacturing an electro-optical assembly, comprising the steps of:
- separately manufacturing a housing and a film circuit having metallized edge strips;
- securing retaining angle pieces to said metallized edge strips of said film circuit;
- positioning said film circuit together with said retaining angle pieces in said housing;
- welding said retaining angle pieces to a floor of said housing in position;
- positioning a shield cap over said film circuit with a light transmissive opening in said shield cap being above an electro-optical element in said film circuit;
- welding said shield cap to said floor of said housing to position;
- and
- incorporating further elements in said housing and sealing said housing.
An electro-optical assembly, comprising:
- a substrate;
- a film circuit formed on said substrate and including an electro-optical component;
- metallized strips extending along edge portions of said substrate;
- retaining angle pieces welded to said metallized strips on said substrate;
- and
- a metal housing floor, said substrate lying on said metal housing floor and said retaining angle pieces being welded to said metal housing floor.
Dependencies are inferred from the claim text.