US4906065A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-optical assembly
Assignee: Siemens AG
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Filing: 1988-09-20
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Granted: 1990-03-06
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Expires: 2008-09-20
Abstract
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.
Inventors
- 👤 Franz Taumberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:36
CPC Classifications
H; H10; H10F; H10F77/00; H10F77/50; H10W; H10W90/00; H10H; H10H20/00; H10H20/80; H10H20/85; H10H20/8506; H10W90/701; H10W90/751; H10W90/754
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
117 words
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.
Claim 2
Dependent Claim
117 words
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.
Claim 3
Dependent Claim
45 words
An electro-optical assembly as claimed in claim 1, further comprising: a metallic shield cap shielding the substrate, said metallic shielding cap having a light transmissive opening above the electro-optical component of the film circuit, said shielding cap being joined to the housing floor by welds.
Claim 4
Dependent Claim
29 words
An electro-optical assembly as claimed in claim 1, wherein said retaining angle pieces have a coefficient of thermal expansion approximately equal to a coefficient of thermal expansion the substrate.
Claim 5
Dependent Claim
39 words
An electro-optical assembly as claimed in claim 1, wherein said retaining angle pieces have a coefficient of thermal expansion lying between a coefficient of thermal expansion of the substrate and a coefficient of thermal expansion of the housing floor.
Claim 6
Dependent Claim
14 words
An electro-optical assembly as claimed in claim 1, wherein said welds are spot welds.
Claim 7
Dependent Claim
15 words
An electro-optical assembly as claimed in claim 1, wherein said welds form a welded seam.
Claim 8
Independent Claim
111 words
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.
Claim 9
Independent Claim
111 words
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.
Claim 10
Dependent Claim
63 words
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.
Claim 11
Dependent Claim
63 words
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.
Claim 12
Dependent Claim
38 words
An electro-optical assembly as claimed in claim 8, further comprising: a shield cap mounted over said substrate and being welded to said metal housing floor, said shield cap having a light transmissive opening positioned over said electro-optical component.
References Cited (Backward Citations)
US4787696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-03-05 | 1993-09-04 | 1994-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-05 | 1997-09-04 | 1998-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-05 | 2001-09-04 | 2002-03-06 | $7700.00 | Window Closed / Lapsed |