US4023691A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of transferring semi-conductor discs by a hinged transfer carrier
Assignee: United States Fused Quartz Co Inc
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Filing: 1975-09-15
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Granted: 1977-05-17
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Expires: 1995-09-15
Abstract
Abstract Method and apparatus for transferring semi-conductor discs to and from a slab-form quartz boat which apparatus includes a carrier having a pair of hingedly attached shells having a plurality of opposed slots; the method including the receiving and discharge of discs by and from the slots in the carrier, into and from cooperative slots in the said quartz boat by the pivotal opening and closing of the shells of the carrier.
Inventors
- 👤 Richard Perel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:26
CPC Classifications
H; H10; H10P; H10P72/00; H10P72/10; H10P72/13; H10P72/15; Y; Y10; Y10S; Y10S269/00; Y10S269/903
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
157 words
A method for transferring a plurality of semi-conductor discs between a carrier and a slotted boat comprising: a. positioning a disc carrier above a cooperative boat, the carrier comprising a pair of shells hingedly secured together, each shell having a plurality of internal disc receiving slots in general opposition to similar slots in the other shell, the shells having means to entrap discs within said internal slots thereof when the shells are pivoted into closed configuration, the boat having a plurality of cooperative slots in general opposition to the bottom of the carrier, b. the carrier and boat being positioned with respect to each other so that all discs are simultaneously in registration with the slots in the shells and the boat, c. pivoting the shells toward and away from each other to alternately engage and trap the discs in the opposed slots thereof and release and discharge the discs therefrom to the slots of the boat.
Claim 2
Independent Claim
157 words
A method for transferring a plurality of semi-conductor discs between a carrier and a slotted boat comprising: a. positioning a disc carrier above a cooperative boat, the carrier comprising a pair of shells hingedly secured together, each shell having a plurality of internal disc receiving slots in general opposition to similar slots in the other shell, the shells having means to entrap discs within said internal slots thereof when the shells are pivoted into closed configuration, the boat having a plurality of cooperative slots in general opposition to the bottom of the carrier, b. the carrier and boat being positioned with respect to each other so that all discs are simultaneously in registration with the slots in the shells and the boat, c. pivoting the shells toward and away from each other to alternately engage and trap the discs in the opposed slots thereof and release and discharge the discs therefrom to the slots of the boat.
Claim 3
Dependent Claim
48 words
A method for transferring a plurality of semi-conductor discs between a carrier and a slotted boat in accordance with claim 1 in which a. the bottom edges of the discs are positioned within the slots on the boat before the shells are pivotally moved away from each other.
References Cited (Backward Citations)
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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) | 1980-05-16 | 1980-11-15 | 1981-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-16 | 1984-11-15 | 1985-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-16 | 1988-11-15 | 1989-05-17 | $7700.00 | Window Closed / Lapsed |