US4948979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum device for handling workpieces
Assignee: Toshiba Corp
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Filing: 1988-12-21
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Granted: 1990-08-14
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Expires: 2008-12-21
Abstract
Abstract A vacuum device comprises a vacuum working chamber for performing a predetermined process to a material such as substrate and a vacuum prechamber for changing the material. Both the vacuum chambers are coupled by a coupling member so as to communicate the interiors of the respective chambers and the communcation is managed by valve means located for the coupling member. Both vacuum chambers may be constructed so as to be movable or pivotable horizontally with respect to each other. The coupling member may be constructed as an independent member which is inserted between both the vacuum chambers as occasion demands.
Inventors
- 👤 Yasuo Munakata
- 👤 Mineo Gotou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:23
CPC Classifications
H; H10; H10P; H10P72/00; H10P72/04; H10P72/0402; H01; H01J; H01J37/00; H01J37/02; H01J37/18; H10P72/0451; H10P72/0462; Y; Y10; Y10S; Y10S414/00; Y10S414/135; Y10S414/139
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
149 words
A vacuum device for handling workpieces comprising: vacuum working chamber means for performing a predetermined process on a workpiece disposed in said working chamber means; vacuum prechamber means disposed adjacent to said working chamber means for relative movement to and away from the working chamber means for changing the workpiece in said working chamber means under vacuum condition; a pair of coupling means provided respectively on side walls of said working chamber means and said prechamber means for opposing sealing connection to couple said working chamber means and said prechamber means for their mutual communication in the state where said prechamber means is moved to said working chamber means; a first valve means positioned inside the coupling means of the working chamber means to open and close the same; and a second valve means positioned inside the coupling means of the prechamber means to open and close the same.
Claim 2
Dependent Claim
149 words
A vacuum device for handling workpieces comprising: vacuum working chamber means for performing a predetermined process on a workpiece disposed in said working chamber means; vacuum prechamber means disposed adjacent to said working chamber means for relative movement to and away from the working chamber means for changing the workpiece in said working chamber means under vacuum condition; a pair of coupling means provided respectively on side walls of said working chamber means and said prechamber means for opposing sealing connection to couple said working chamber means and said prechamber means for their mutual communication in the state where said prechamber means is moved to said working chamber means; a first valve means positioned inside the coupling means of the working chamber means to open and close the same; and a second valve means positioned inside the coupling means of the prechamber means to open and close the same.
Claim 3
Dependent Claim
45 words
The vacuum device according to claim 1, wherein at least one of said vacuum working chamber means and said vacuum prechamber means is movable in a horizontal direction on a predefined path with respect to the other one thereof for the connection or separation therebetween.
Claim 4
Dependent Claim
41 words
The vacuum device according to claim 1, wherein at least one of said vacuum working chamber means and said vacuum prechamber means is pivotable in a horizontal direction with respect to the other one thereof for the connection or separation therebetween.
Claim 5
Dependent Claim
59 words
The vacuum device according to claim 1, wherein said vacuum working chamber means and said vacuum prechamber means are fixedly located with said coupling means opposing to each other, and an intermediate connecting means provided with gate valve means is inserted between said coupling means of said vacuum working chamber means and said prechamber means for their mutual communication.
Claim 6
Dependent Claim
37 words
The vacuum device according to claim 1, wherein said vacuum working chamber means is equipped with means for emitting an energy beam for processing said material to form a descriptive pattern on a surface of said material.
Claim 7
Dependent Claim
27 words
The vacuum device according to claim 5, wherein said means for emitting the energy beam is an electronic gun and said energy beam is an electronic ray.
Claim 8
Dependent Claim
28 words
The vacuum device according to claim 1, wherein said vacuum working chamber means is equipped with means for emitting an energy beam for measuring and observing said material.
Claim 9
Dependent Claim
27 words
The vacuum device according to claim 7, wherein said means for emitting the energy beam is an electronic gun and said energy beam is an electronic ray.
Claim 10
Dependent Claim
36 words
The vacuum device according to claim 2, wherein at least one of said vacuum working chamber mans and said vacuum prechamber means further comprises wheels for moving said chamber means horizontally with respect to each other.
Claim 11
Dependent Claim
51 words
The vacuum device according to claim 1, wherein at least one of said pair of coupling means comprises a double wall structure defining an inner space therebetween which is connected with the respective chamber means through a plurality of exhaust holes, and said inner space is connected to a vacuum pump.
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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) | 1993-08-13 | 1994-02-12 | 1994-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-13 | 1998-02-12 | 1998-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-13 | 2002-02-12 | 2002-08-14 | $7700.00 | Window Closed / Lapsed |