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US3708730A Expired / Lapsed US ⏱️ 0.0 years remaining

Contact structure for multiple wafer semiconductor rectifier arrangement

Assignee: Semikron GmbH and Co KG
•
Filing: 1970-02-05
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Granted: 1973-01-02
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Expires: 1990-02-05
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Abstract

Abstract A semiconductor rectifier device, for use particularly with miniature devices, wherein two or more semiconductor diode wafers are initially connected to the conductor portions of the planar circuit by means of clamp-type mountings and are then simultaneously permanently connected to the conductors. The devices are then embedded in an insulating material with the conductor portions extending out of the housing formed by the insulating material in a predetermined direction and orientation. The portions of the circuit constituting the clamp-type mountings and the conductor portions are formed by dividing a strip of conductive sheet material into a plurality of sections having a certain areal expanse which form a geometric structure. Each of the structures includes, in interlocked fashion, the portions of the circuit comprising the clamp-type mountings and the current conductors. The current conductor portions of the circuit extend from the center of the structure parallel to one another and/or at a desired angle with respect to one another toward the edge of the structure and function as supporting bars between the central portion of the structure and the strip of conductive sheet material.

Inventors

  • 👤 W Schierz
  • 👤 L Vladik

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 14:52
CPC Classifications
H; H10; H10W; H10W70/00; H10W70/40; H10W70/481; H10W70/421

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 300 words
An article of manufacture for use in the manufacture of a semiconductor rectifier device having a plurality of interconnected semiconductor wafers each of which is electrically connected to the conductors of the device by inserting same between a pair of sectional areas of the current conductors which form the contacts of a clamp-type mounting, and wherein the device is then enclosed in an insulating material so that conductor portions extend therefrom in a desired predetermined direction, comprising: a strip of conductive sheet material having a plurality of openings therein so that the surface thereof is divided into a plurality of sectional areas to form a geometric structure which is entirely enclosed by the conductive sheet material and with the sectional areas of said structure forming the associated supporting and upper contacts for each clamp-type mounting for the plurality of semiconductor wafers of said device and all of the respective current conductors for said contacts and for said device, the surface areas of said contacts and the portions of said conductors interconnecting said clamp-type mountings being interlocked with one another within the central portion of said structure, at least one of the contacts of each associated pair of supporting and upper contacts being bent out of the plane of said strip of conductive sheet material and a separate semiconductor wafer clamped between each associated pair of contacts, and the portions of said current conductors which are to form the external connections for said rectifying device extending from the central portion of said structure toward the edges thereof in at least two different directions and at desired angles with respect to one another and being connected to the surrounding portions of said strip of conductive sheet material to support the central portion of said structure within said strip during the manufacturing process.
Claim 2
Dependent Claim 300 words
An article of manufacture for use in the manufacture of a semiconductor rectifier device having a plurality of interconnected semiconductor wafers each of which is electrically connected to the conductors of the device by inserting same between a pair of sectional areas of the current conductors which form the contacts of a clamp-type mounting, and wherein the device is then enclosed in an insulating material so that conductor portions extend therefrom in a desired predetermined direction, comprising: a strip of conductive sheet material having a plurality of openings therein so that the surface thereof is divided into a plurality of sectional areas to form a geometric structure which is entirely enclosed by the conductive sheet material and with the sectional areas of said structure forming the associated supporting and upper contacts for each clamp-type mounting for the plurality of semiconductor wafers of said device and all of the respective current conductors for said contacts and for said device, the surface areas of said contacts and the portions of said conductors interconnecting said clamp-type mountings being interlocked with one another within the central portion of said structure, at least one of the contacts of each associated pair of supporting and upper contacts being bent out of the plane of said strip of conductive sheet material and a separate semiconductor wafer clamped between each associated pair of contacts, and the portions of said current conductors which are to form the external connections for said rectifying device extending from the central portion of said structure toward the edges thereof in at least two different directions and at desired angles with respect to one another and being connected to the surrounding portions of said strip of conductive sheet material to support the central portion of said structure within said strip during the manufacturing process.
Claim 3
Dependent Claim 39 words
The article of manufacture defined in claim 1 wherein at least some of said portions of said current conductors which form the external connections for said device extend from the central portion of said structure parallel to one another.
Claim 4
Dependent Claim 36 words
The article of manufacture defined in claim 1 wherein said portions of said conductors which form the external connections for said device extend from the central portion of said structure at right angles to one another.
Claim 5
Dependent Claim 20 words
The article of manufacture defined in claim 1 wherein said conductive sheet material is copper, brass or an iron-nickel-cobalt alloy.
Claim 6
Dependent Claim 21 words
The semiconductor rectifier device defined in claim 4 wherein said strip of conductive sheet material is covered an easily solderable coating.
Claim 7
Dependent Claim 54 words
The article of manufacture defined in claim 1 wherein the central portion of said structure is enclosed in a housing formed from an insulating material, said portions of said current conductors which form the external connections for said device extending outwardly from opposite edges of said housing and being arranged parallel to one another.
Claim 8
Dependent Claim 65 words
The article of manufacture defined in claim 1 wherein the central portion of said structure is enclosed in a housing formed from insulating material, said portions of said current conductors which form the external connections for said device being bent out of the plane of said strip of conductive sheet material and extending outwardly from a major face of said housing parallel to one another.
Claim 9
Dependent Claim 46 words
The article of manufacture defined in claim 1 wherein said portions of said current conductors which form the external connections for said device are connected to the said surrounding portion of the strip of conductive sheet material by means of bars of said conductive sheet material.
Claim 10
Dependent Claim 50 words
The article of manufacture in claim 8 wherein said structure is provided with additional bars of said conductive sheet material extending from the central portion of said structure to the surrounding portion of said strip of conductive sheet material for providing additional support for said structure during the manufacturing process.
Claim 11
Dependent Claim 22 words
The article of manufacture defined in claim 1 wherein said strip of conductive sheet material includes a plurality of said geometrical structures.

References Cited (Backward Citations)

US3281628A Cited
US3537175A Cited
US3602983A Cited
US3500136A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-01-02 1976-07-03 1977-01-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-01-02 1980-07-03 1981-01-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-01-02 1984-07-03 1985-01-02 $7700.00 Window Closed / Lapsed

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