US3702604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Work mounting mechanism in slicing machine
Assignee: Silicon Technology Corp
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Filing: 1971-05-20
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Granted: 1972-11-14
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Expires: 1991-05-20
Abstract
Abstract A machine for slicing wafers of brittle material from an ingot in which the ingot to be sliced is secured for stepwise movement into the path of a rotating saw blade which moves through a slicing path perpendicular to the direction of movement of the ingot. The mounting means for the ingot includes a way table mounted on a fixed base for movement between a cutting position adjacent said saw blade and a clearance position away from the said saw blade. Positive stop means define the cutting position of the way table such that the ingot can be moved away from the saw and back to the saw with an accurate repositioning of the ingot in its cutting position. A variety of adjustable mounting means are provided to mount the ingot on the way table whereby the ingot may be oriented vertically, horizontally and axially for proper angle of cut.
Inventors
- 👤 Don R Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:43
CPC Classifications
B; B28; B28D; B28D5/00; B28D5/02; B28D5/022; B28D5/028; B28D5/0058; Y; Y10; Y10S; Y10S83/00; Y10S83/929; Y10S83/952; Y10T; Y10T83/00; Y10T83/444; Y10T83/4539; Y10T83/647; Y10T83/654; Y10T83/6563; Y10T83/6566
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
257 words
In a machine for slicing thin wafers of brittle material from an elongated ingot, including a saw blade and mounting arm providing for vertical slicing movement of said saw blade while said saw blade is rotated about its central, horizontal axis, a work-holding, alignment and feeding mechanism comprising: a. a base; b. a main way table; c. means mounting said main way table on said base for movement parallel to said central, horizontal axis of said saw blade between a clearance position remote from said saw blade and a cutting position adjacent said saw blade; d. ingot mounting means for mounting an ingot on said main way table including stepwise advancement means to advance an ingot into the path of vertical slicing movement of said saw blade; e. orientation adjustment means mounting said ingot mounting means on said main way table in a generally horizontal plane generally parallel to the central, horizontal axis of said saw blade for rotational adjustment movement about a vertical axis and about a horizontal axis perpendicular to the central horizontal axis of said saw blade; f. actuation means for moving said main way table between said clearance position and said cutting position; and g. stop means accurately defining said cutting position and terminating movement of said main way table from said clearance position to said cutting position; said work-holding alignment and feeding mechanism providing accurate step-wise advancement of an ingot for slicing operations and providing for movement to a clearance position between slicing operations free from any interference with subsequent slicing operations.
Claim 2
Dependent Claim
257 words
In a machine for slicing thin wafers of brittle material from an elongated ingot, including a saw blade and mounting arm providing for vertical slicing movement of said saw blade while said saw blade is rotated about its central, horizontal axis, a work-holding, alignment and feeding mechanism comprising: a. a base; b. a main way table; c. means mounting said main way table on said base for movement parallel to said central, horizontal axis of said saw blade between a clearance position remote from said saw blade and a cutting position adjacent said saw blade; d. ingot mounting means for mounting an ingot on said main way table including stepwise advancement means to advance an ingot into the path of vertical slicing movement of said saw blade; e. orientation adjustment means mounting said ingot mounting means on said main way table in a generally horizontal plane generally parallel to the central, horizontal axis of said saw blade for rotational adjustment movement about a vertical axis and about a horizontal axis perpendicular to the central horizontal axis of said saw blade; f. actuation means for moving said main way table between said clearance position and said cutting position; and g. stop means accurately defining said cutting position and terminating movement of said main way table from said clearance position to said cutting position; said work-holding alignment and feeding mechanism providing accurate step-wise advancement of an ingot for slicing operations and providing for movement to a clearance position between slicing operations free from any interference with subsequent slicing operations.
Claim 3
Dependent Claim
45 words
In a device in accordance with claim 1, an incremental back-off means comprising an incremental movement mechanism operatively engaged with said main way table to move same out of said cutting position by an incremental amount of less than 1 inch between individual slicing cycles.
Claim 4
Dependent Claim
46 words
In a device in accordance with claim 2 wherein said incremental back-off means comprises a piston and cylinder assembly and an incremental movement shaft operatively engaged with said stop means for selectively moving said main way table out of said slicing position in an incremental amount.
Claim 5
Dependent Claim
51 words
In a device in accordance with claim 1 wherein said orientation adjustment means includes an intermediate table mounted for horizontal movement on said main way table, a vertical pivot mechanism on said intermediate table and a horizontal pivot mechanism operatively interconnected between said vertical pivot mechanism and said ingot mounting means.
Claim 6
Dependent Claim
41 words
In a device in accordance with claim 1 wherein said orientation adjustment includes a vertical pivot mechanism operatively mounted on said main way table and a horizontal pivot mechanism operatively interconnected between said ingot mounting means and said vertical pivot mechanism.
Claim 7
Dependent Claim
49 words
In a device in accordance with claim 5 wherein said ingot advancement means comprises an electrically energized stepping motor, a lead screw driven by said motor, a traveling nut in threaded engagement with said lead screw, and means interconnecting said threaded nut and an ingot mounted in said device.
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) | 1975-11-14 | 1976-05-15 | 1976-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-14 | 1980-05-15 | 1980-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-14 | 1984-05-15 | 1984-11-14 | $7700.00 | Window Closed / Lapsed |