US3622419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of packaging an optoelectrical device
Assignee: Motorola Solutions Inc
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Filing: 1969-10-08
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Granted: 1971-11-23
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Expires: 1989-10-08
Abstract
Abstract In packaging an optoelectrical device, liquid silicone which can be cured to become a transparent flexible polymer substance having an index of refraction close to that of a solid transparent cover plate is disposed between the light sensitive side of the device and a surface of the cover plate and in good optical coupling therewith.
Inventors
- 👤 Arnold Tempe London
- 👤 Karel J Brouwers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:12
CPC Classifications
H; H10; H10F; H10F77/00; H10F77/50; H10F77/40; H10F77/407; H10W; H10W76/00; H10W76/40; H10W70/00; H10W70/60; H10W70/67; H10W70/68; H10W70/682; H10W72/00; H10W72/01; H10W72/015; H10W72/01515; H10W72/071; H10W72/075; H10W72/50; H10W72/531; H10W72/5363; H10W72/851; H10W72/874; H10W72/884; H10W74/00; H10W90/00; H10W90/701; H10W90/731; H10W90/734; H10W90/751; H10W90/754; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49121
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
45 words
The invention of claim 1 in which the liquid is poured into a fixture having at least one inner wall which slants upwardly and inwardly of the fixture and the liquid is cured in said fixture, whereby the flexible polymer takes a trapezoidal moundlike form.
Claim 2
Dependent Claim
39 words
The invention of claim 1 in which said device is positioned in a hole in a substrate, and including the preliminary step of at least partially filling said hole with curable liquid and curing the liquid in said hole.
Claim 3
Independent Claim
160 words
The method of producing an optical package including an optical device providing an enhanced optical coupling to the device and passivation thereof, said device being positioned in a hole in a substrate, there being a support for a cover plate fixed to the substrate surrounding said hole, the steps of: pouring a liquid which can be cured to a clear transparent flexible polymer substance into said hole to at least partially fill said hole, curing said liquid, placing a fixture on said substrate within said support and surrounding said hole, pouring said liquid into said fixture to a depth above said device and below the support height of said cover support for said cover plate, curing said liquid, removing said fixture, pouring an additional amount of said liquid on said second mentioned cured liquid, cementing a transparent cover plate in its support position on said support and in contact with said additional amount of liquid, and curing said additional liquid.
References Cited (Backward Citations)
US2839645A
Cited
US3413480A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |