Patent US3943623A successfully refreshed from Google Patents.
US3943623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hollow cavity package electronic unit
Assignee: Nitto Denko Corp
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Filing: 1974-08-23
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Granted: 1976-03-16
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Expires: 1994-08-23
Abstract
Abstract A method of assembling split, hollow package sections housing an electronic element, having an internal lead wire and having external lead wires extending outwardly therefrom, wherein the package sections are adhesively secured together with external lead wires interposed between the mating surfaces by a fibrous sheet carried by the mating surface of the base portion with the sheet impregnated with a partially-cured plastic polymer.
Inventors
- 👤 Kazunori Mizutani
- 👤 Toshihiko Kitaura
- 👤 Minoru Noo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:59
CPC Classifications
H; H10; H10W; H10W76/00; H10W76/10; H10W76/12; H10W76/15; H10W76/157; H10W76/60; H10W70/00; H10W70/60; H10W70/67; H10W70/68; H10W70/681; H10W90/00; H10W90/701; H10W90/751; H10W90/756; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49169
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
210 words
A method of fabricating a package for housing an electronic unit in a cavity within said package comprising the steps of: : a. mounting said electronic unit on a lower portion of said package; b. applying a fibrous sheet, selected from the group consisting of non-woven polyester fabric, glass paper and Japanese wooden paper, impregnated with a partially cured plastic polymer to a mating surface of the lower portion, said plastic polymer being selected from the group consisting of epoxide resin polymers, unsaturated polyester resin polymers, pheral resin polymers and melamine resin polymers; c. placing the externallead wires onto the fibrous sheet so as to bond them to the lower portion; d. connecting internal lead wire between said external lead wires and said electronic unit; e. applying a partially cured plastic polymer adhesive to a mating surface of an upper portion of said package, said upper portion having an aperture therein; f. bringing the mating surface of the upper portion into contact with a corresponding mating surface on said lower portion; g. applying a pressure to said upper and lower portions so as to maintain their contact; h. heating said package to fully cure the plastic polymer adhesive; and i. sealing said aperture in said upper portion of the package.
Claim 2
Independent Claim
210 words
A method of fabricating a package for housing an electronic unit in a cavity within said package comprising the steps of: : a. mounting said electronic unit on a lower portion of said package; b. applying a fibrous sheet, selected from the group consisting of non-woven polyester fabric, glass paper and Japanese wooden paper, impregnated with a partially cured plastic polymer to a mating surface of the lower portion, said plastic polymer being selected from the group consisting of epoxide resin polymers, unsaturated polyester resin polymers, pheral resin polymers and melamine resin polymers; c. placing the externallead wires onto the fibrous sheet so as to bond them to the lower portion; d. connecting internal lead wire between said external lead wires and said electronic unit; e. applying a partially cured plastic polymer adhesive to a mating surface of an upper portion of said package, said upper portion having an aperture therein; f. bringing the mating surface of the upper portion into contact with a corresponding mating surface on said lower portion; g. applying a pressure to said upper and lower portions so as to maintain their contact; h. heating said package to fully cure the plastic polymer adhesive; and i. sealing said aperture in said upper portion of the package.
Claim 3
Dependent Claim
22 words
The method of claim 1 wherein said electronic unit is mounted within a recess formed in said lower portion of said package.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-16 | 1979-09-15 | 1980-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-16 | 1983-09-15 | 1984-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-16 | 1987-09-15 | 1988-03-16 | $7700.00 | Window Closed / Lapsed |