US3919602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric circuit arrangement and method of making the same
Assignee: Robert Bosch GmbH
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Filing: 1973-03-02
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Granted: 1975-11-11
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Expires: 1993-03-02
Abstract
Abstract A circuit board of electrically insulating material is provided with a printed circuit including one or more circuit strips. A discrete electrical component, or several of them, is mounted on the circuit board in circuit with the circuit arrangement, and at least one semi-conductor unit is provided on the circuit board and electrically connected with the circuit thereof.
Inventors
- 👤 Anton Kaiser
- 👤 Helmut Keller
- 👤 Adolf Kugelmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:17
CPC Classifications
H; H10; H10W; H10W70/00; H10W70/60; H05; H05K; H05K1/00; H05K1/18; H05K3/00; H05K3/22; H05K3/28; H05K3/284; H10W40/00; H10W40/60; H10W40/611; H10W70/611; H10W74/00; H10W74/10; H10W74/111; H10W74/114; H10W76/00; H10W76/40; H10W76/42; H10W76/47; H05K2203/00; H05K2203/13; H05K2203/1305; H05K2203/1316; H05K2203/30; H05K2203/304; H05K3/30; H05K3/32; H05K3/34; H05K3/3447; H10W40/20; H10W40/231; H10W40/233; H10W72/00; H10W72/50; H10W72/531; H10W72/536; H10W72/5363; H10W72/541; H10W72/5449; H10W72/851; H10W72/874; H10W72/884; H10W90/00; H10W90/701; H10W90/731; H10W90/734; H10W90/751; H10W90/754
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
374 words
In an electric circuit arrangement, a combination comprising a circuit board of electrically insulating synthetic plastic material having two major surfaces and provided with a plurality of holes passing through said circuit board from one to the other of said surfaces; circuit means on said one surface of said circuit board and including a plurality of electrically conducting circuit strips of copper each having a thickness greater than 20 Mu ; anti-solder lacquer applied to selected regions of at least said one surface of said circuit board and of said circuit means; at least one semi-conductor unit having a surface provided with a plurality of terminals; means for connecting said semi-conductor unit with said circuit board at said one surface thereof so that said terminals are exposed; flexible conductor means for electrically connecting the respective ones of said terminals to the respective ones of said circuit strips and forming loops having apexes spaced at most a predetermined distance from said one surface of said circuit board; a hollow cylindrical element connected to said one surface of said circuit board so as to surround at Least said semiconductor unit and said conductor means and having a height exceeding said distance for protecting said semi-conductor unit and said conductor means from mechanical damage; protective potting means in said cylindrical element over said semiconductor unit and said conductor means and including a body of polymerizable material having a height exceeding said distance but smaller than said height of said cylindrical element so that the latter bounds with said body a depression; at least one discrete electrical component provided with electrical input and output leads and arranged adjacent said other surface of said circuit board, said leads of said electrical component passing through said holes and having respective free ends at said one surface of said circuit board outside of said selected regions; and solder means applied to said one surface of said circuit board and operative for connecting said leads to the associated ones of said circuit strips, said anti-solder lacquer and an air cushion in said depression protecting said selected regions and said semi-conductor unit with said conductor means, respectively, from said solder means during the application thereof to said one surface of said circuit board.
Claim 2
Dependent Claim
374 words
In an electric circuit arrangement, a combination comprising a circuit board of electrically insulating synthetic plastic material having two major surfaces and provided with a plurality of holes passing through said circuit board from one to the other of said surfaces; circuit means on said one surface of said circuit board and including a plurality of electrically conducting circuit strips of copper each having a thickness greater than 20 Mu ; anti-solder lacquer applied to selected regions of at least said one surface of said circuit board and of said circuit means; at least one semi-conductor unit having a surface provided with a plurality of terminals; means for connecting said semi-conductor unit with said circuit board at said one surface thereof so that said terminals are exposed; flexible conductor means for electrically connecting the respective ones of said terminals to the respective ones of said circuit strips and forming loops having apexes spaced at most a predetermined distance from said one surface of said circuit board; a hollow cylindrical element connected to said one surface of said circuit board so as to surround at Least said semiconductor unit and said conductor means and having a height exceeding said distance for protecting said semi-conductor unit and said conductor means from mechanical damage; protective potting means in said cylindrical element over said semiconductor unit and said conductor means and including a body of polymerizable material having a height exceeding said distance but smaller than said height of said cylindrical element so that the latter bounds with said body a depression; at least one discrete electrical component provided with electrical input and output leads and arranged adjacent said other surface of said circuit board, said leads of said electrical component passing through said holes and having respective free ends at said one surface of said circuit board outside of said selected regions; and solder means applied to said one surface of said circuit board and operative for connecting said leads to the associated ones of said circuit strips, said anti-solder lacquer and an air cushion in said depression protecting said selected regions and said semi-conductor unit with said conductor means, respectively, from said solder means during the application thereof to said one surface of said circuit board.
Claim 3
Dependent Claim
24 words
A combination as defined in claim 1, wherein said connecting means comprises an adhesive substance adhering said semi-conductor unit to said circuit board directly.
Claim 4
Dependent Claim
23 words
A combination as defined in claim 1, wherein said connecting means comprises an adhesive substance adhering said semi-conductor unit to said circuit strips.
Claim 5
Dependent Claim
23 words
A combination as defined in claim 1, wherein said connecting means comprises a solder substance connecting said semi-conductor unit to said circuit strips.
Claim 6
Dependent Claim
14 words
A combination as defined in claim 1, wherein said conductive means comprises band wires.
Claim 7
Dependent Claim
22 words
A combination as defined in claim 1, wherein said cylindrical element is a cap covering said conductor means and having an opening.
Claim 8
Dependent Claim
28 words
A combination as defined in claim 6, wherein said cap has a transverse wall opposite said semi-conductor unit, and wherein said opening is provided in said transverse wall.
Claim 9
Dependent Claim
15 words
A combination as defined in claim 1, wherein said cylindrical elements is of metallic material.
Claim 10
Dependent Claim
16 words
A combination as defined in claim 1, wherein said cylindrical element is of electrically insulating material.
Claim 11
Dependent Claim
25 words
A combination as defined in claim 1, wherein said cylindrical element is composed in part of metallic material and in part of electrically insulating material.
Claim 12
Dependent Claim
14 words
A combination as defined in claim 10, wherein said metallic material is oxydized aluminum.
Claim 13
Dependent Claim
23 words
A combination as defined in claim 1; and further comprising at least one heat sink in thermally conductive relationship with said surround means.
Claim 14
Dependent Claim
23 words
A combination as defined in claim 1; and further comprising a corrosion-resistant metallic protective layer covering at least portions of said circuit means.
Claim 15
Dependent Claim
15 words
A combination as defined in claim 13, wherein said protective layer is a nickel coating.
Claim 16
Dependent Claim
15 words
A combination as defined in claim 13, wherein said protective layer is a silver coating.
Claim 17
Dependent Claim
15 words
A combination as defined in claim 2, wherein said protective layer is a gold coating.
Claim 18
Dependent Claim
42 words
A combination as defined in claim 1, wherein said connecting means connects said semi-conductor unit to one of said circuit strips; and wherein the area of said one circuit strip is larger than the areas of the other of said circuit strips.
Claim 19
Dependent Claim
34 words
A combination as defined in claim 1, wherein wherein said connecting means is a layer of solder provided on one of said circuit strips and connecting said semi-conductor unit to said one circuit strip.
Claim 20
Dependent Claim
23 words
A combination as defined in claim 1, wherein said circuit board contains at least one insert of a material having good thermal conductivity.
Claim 21
Dependent Claim
14 words
A combination as defined in claim 19, wherein said insert is a metallic mesh.
Claim 22
Dependent Claim
37 words
A combination as defined in claim 1, wherein Said connecting means connects said semi-conductor unit with one strip said circuit strips; and further comprising at least one heat sink in thermally conductive relationship with said circuit strip.
Claim 23
Dependent Claim
50 words
A combination as defined in claim 1, wherein said connecting means connects said semi-conductor unit to one of said circuit strips in the region of one margin thereof; and wherein the remaining circuit strips extend on said circuit board laterally of and into the vicinity of said one circuit strip.
Claim 24
Dependent Claim
57 words
A combination as defined in claim 1, wherein one of said circuit strips comprises a main portion and a projecting portion extending laterally from said main portion, said semi-conductor unit being provided on said projecting portion; and wherein the remaining circuit strips extend on said circuit board from three sides toward the region of said projecting portion.
Claim 25
Dependent Claim
56 words
A combination as defined in claim 1, one of said circuit strips comprising two spaced-apart main portions and a narrow connecting portion connecting said main portions, said semi-conductor unit being provided on said connecting portion; and wherein the remaining circuit strips extend on said circuit board from two sides toward the region of said connecting portion.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |