US4251909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing a target assembly for a camera tube
Assignee: US Philips Corp
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Filing: 1979-05-09
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Granted: 1981-02-24
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Expires: 1999-05-09
Abstract
Abstract A target and target assembly for a camera tube in which a semiconductor plate is provided on an annular support. The plate has a semiconductor monocrystalline edge portion which comprises an integrated circuit for processing the electrical signals originating from the target. The central portion of the plate is provided with a radiation-sensitive layer having one or more radiation-permeable electrodes. The integrated circuit is provided with inputs which are connected to the electrodes and with leads for the supply and control voltages. A window is provided on the electrodes and overlaps the inner edge of the support, the window, the edge portion and the support adjoining each other in a vacuum-tight manner.
Inventors
- 👤 Arthur M. E. Hoeberechts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:12
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/96; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/45; H01J29/451; H01J31/00; H01J31/08; H01J31/26; H01J31/46; H01J9/00; H01J9/20; H01J9/233
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
142 words
A method of making a target assembly for converting incident radiation into electrical signals for use in a camera tube or the like comprising the steps of: forming an integrated circuit for processing electrical signals in a peripheral portion of a semiconductor plate; and providing at least one electrode which is permeable to said radiation and which is connected to an input of said integrated circuit on a central portion of one side of said plate; and then, in the following order: securing a window permeable to said radiation to said one side of the plate over said electrode; forming an opening in a central portion of the other side of said plate to expose a portion of the surface of said electrode remote from said window; and applying a radiation-sensitive layer to at least said exposed surface portion of said electrode.
Claim 2
Independent Claim
142 words
A method of making a target assembly for converting incident radiation into electrical signals for use in a camera tube or the like comprising the steps of: forming an integrated circuit for processing electrical signals in a peripheral portion of a semiconductor plate; and providing at least one electrode which is permeable to said radiation and which is connected to an input of said integrated circuit on a central portion of one side of said plate; and then, in the following order: securing a window permeable to said radiation to said one side of the plate over said electrode; forming an opening in a central portion of the other side of said plate to expose a portion of the surface of said electrode remote from said window; and applying a radiation-sensitive layer to at least said exposed surface portion of said electrode.
Claim 3
Dependent Claim
31 words
The method according to claim 1 including the step of providing, on a peripheral portion of said plate, a conductive layer which is connected to an output of said integrated circuit.
Claim 4
Dependent Claim
52 words
The method according to claim 2 including the step of securing, in a vacuum tight manner, an annular support of electrically insulating material to said other side of said plate in a manner such that the edge of said window extends at least up to the inner edge of said annular support.
Claim 5
Independent Claim
23 words
The method according to claims 1, 2 or 3 wherein said opening is formed by etching through said central portion of said plate.
Claim 6
Dependent Claim
19 words
The method according to claim 4 wherein said plate is of substantially uniform thickness prior to said etching step.
Claim 7
Dependent Claim
31 words
The method according to claim 4 wherein said step of providing said electrode includes applying a plurality of spaced, stripe-shaped, mutually parallel permeable electrodes on said one side of said plate.
Claim 8
Dependent Claim
16 words
The method according to claim 4 wherein said window overlaps said inner edge of said support.
Claim 9
Independent Claim
245 words
A method of making a camera tube having an envelope with a target assembly at one end and means arranged in the opposite end of said envelope for producing an electron beam for scanning the target, said method comprising the steps of: forming an integrated circuit for processing electrical signals in a peripheral portion of a semiconductor plate; providing, on a central portion of one side of said plate, at least one electrode which is permeable to incident radiation and which is connected to an input of said integrated circuit; providing, on a peripheral portion of said plate, at least one conductive layer which is connected to an output of said integrated circuit; and securing, in a vacuum tight manner, an annular, electrically insulating support to the other side of said plate; and then, in the following order: securing a window permeable to said radiation to said one side of said plate over said electrode in a manner such that the edge of said window extends at least up to the inner edge of said annular support and said conductive layer extends beyond said window; removing material from the central portion of the other side of said plate to expose a portion of the surface of said electrode remote from said window; applying a radiation sensitive layer to at least the exposed surface portion of said electrode to thereby form said target assembly; and securing said target assembly to said one end of said envelope.
Claim 10
Independent Claim
245 words
A method of making a camera tube having an envelope with a target assembly at one end and means arranged in the opposite end of said envelope for producing an electron beam for scanning the target, said method comprising the steps of: forming an integrated circuit for processing electrical signals in a peripheral portion of a semiconductor plate; providing, on a central portion of one side of said plate, at least one electrode which is permeable to incident radiation and which is connected to an input of said integrated circuit; providing, on a peripheral portion of said plate, at least one conductive layer which is connected to an output of said integrated circuit; and securing, in a vacuum tight manner, an annular, electrically insulating support to the other side of said plate; and then, in the following order: securing a window permeable to said radiation to said one side of said plate over said electrode in a manner such that the edge of said window extends at least up to the inner edge of said annular support and said conductive layer extends beyond said window; removing material from the central portion of the other side of said plate to expose a portion of the surface of said electrode remote from said window; applying a radiation sensitive layer to at least the exposed surface portion of said electrode to thereby form said target assembly; and securing said target assembly to said one end of said envelope.
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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) | 1984-02-24 | 1984-08-25 | 1985-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-24 | 1988-08-25 | 1989-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-24 | 1992-08-25 | 1993-02-24 | $7700.00 | Window Closed / Lapsed |