US4033173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and system for sensing an identifying means
Assignee: International Business Machines Corp
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Filing: 1976-02-11
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Granted: 1977-07-05
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Expires: 1996-02-11
Abstract
Abstract A metallized ceramic substrate has a slot provided in one quadrant on one side thereof. The substrate is disposed in receiving means having either two or four restrictive openings therein and over which the substrate is disposed. Fluid pressure is supplied from a pressure source in a separate path to each of these openings. The opening, which has the slot disposed thereover, has a different pressure in its path from the pressure source than the other openings so that the location of the slot, if it is in the surface of the substrate disposed next to the openings, can be ascertained.
Inventors
- 👤 Asad Firdaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:30
CPC Classifications
H; H10; H10P; H10P72/00; H10P72/06; H10P72/0614; G; G01; G01B; G01B13/00; G01B13/02
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
146 words
A system for detecting the orientation of a semiconductor substrate having a metallic surface and a surface substantially parallel thereto with the substantially parallel surface having identifying means therein including: receiving means to receive the semiconductor substrate in a temporary stationary position without damage to the metallized surface if the semiconductor substrate is disposed so that the metallized surface is in the position in which the parallel surface is to be disposed for detecting the orientation of the semiconductor substrate; first means to indicate if the semiconductor substrate is disposed in said receiving means so that the metallized surface is not engaging said receiving means; means to sense the location of the identifying means without contact with the surface of the semiconductor substrate; and second means to indicate the orientation of the semiconductor substrate by the location of the identifying means relative to said receiving means.
Claim 2
Independent Claim
146 words
A system for detecting the orientation of a semiconductor substrate having a metallic surface and a surface substantially parallel thereto with the substantially parallel surface having identifying means therein including: receiving means to receive the semiconductor substrate in a temporary stationary position without damage to the metallized surface if the semiconductor substrate is disposed so that the metallized surface is in the position in which the parallel surface is to be disposed for detecting the orientation of the semiconductor substrate; first means to indicate if the semiconductor substrate is disposed in said receiving means so that the metallized surface is not engaging said receiving means; means to sense the location of the identifying means without contact with the surface of the semiconductor substrate; and second means to indicate the orientation of the semiconductor substrate by the location of the identifying means relative to said receiving means.
Claim 3
Dependent Claim
31 words
The system according to claim 1 in which the identifying means in the substantially parallel surface of the semiconductor substrate is a slot that does not extend through the semiconductor substrate.
Claim 4
Dependent Claim
101 words
The system according to claim 2 in which: said sensing means includes: a plurality of spaced restrictive openings in said receiving means, said spaced restrictive openings having spaced portions of the semiconductor substrate disposed adjacent thereto but spaced therefrom when the semiconductor substrate is disposed in said receiving means; means to supply fluid at the same predetermined pressure along a separate path to each of said openings; and means to determine the fluid pressure in each of the paths; and said second means indicates the orientation of the semiconductor substrate in accordance with the fluid pressures determined by said determining means.
Claim 5
Dependent Claim
41 words
The system according to claim 3 including: fluid pressure supply means connected to each of said openings; and means to reduce the fluid pressure in each of the paths the same amount between said fluid pressure supply means and said openings.
Claim 6
Dependent Claim
15 words
The system according to claim 4 in which said first means includes fluid pressure means.
Claim 7
Dependent Claim
22 words
The system according to claim 5 in which each of said restrictive openings is smaller than the slot in the semiconductor substrate.
Claim 8
Dependent Claim
87 words
The system according to claim 3 in which: said plurality of spaced restrictive openings comprises an even number, said receiving means has at least two of said spaced restrictive openings; and said determining means includes means to sense the fluid pressure in each of the paths of each pair of said spaced restrictive openings to determine which, if either, of the paths of each pair of said spaced restrictive openings has the fluid pressure therein changed to ascertain the location of the slot in the semiconductor substrate.
Claim 9
Dependent Claim
19 words
The system according to claim 7 in which said receiving means has only two of said spaced restrictive openings.
Claim 10
Dependent Claim
39 words
The system according to claim 7 in which: said receiving means has four of said spaced restrictive openings; and said determining means has separate sensing means for each of the two pairs of paths of said spaced restrictive openings.
Claim 11
Dependent Claim
101 words
The system according to claim 1 in which: said sensing means includes: a plurality of spaced restrictive openings in said receiving means, said spaced restrictive openings having spaced portions of the semiconductor substrate disposed adjacent thereto but spaced therefrom when the semiconductor substrate is disposed in said receiving means; means to supply fluid at the same predetermined pressure along a separate path to each of said openings; and means to determine the fluid pressure in each of the paths; and said second means indicates the orientation of the semiconductor substrate in accordance with the fluid pressures determined by said determining means.
Claim 12
Dependent Claim
41 words
The system according to claim 10 including: fluid pressure supply means connected to each of said openings; and means to reduce the fluid pressure in each of the paths the same amount between said fluid pressure supply means and said openings.
Claim 13
Dependent Claim
15 words
The system according to claim 11 in which said first means includes fluid pressure means.
Claim 14
Independent Claim
154 words
A method for determining the orientation of an element having an identifying means in a surface thereof without contacting the surface including: disposing a surface of the element in spaced relation and adjacent to each of an even number of fluid paths so that the identifying means is aligned with only one of the fluid paths if the surface having the identifying means is adjacent to the fluid paths; retaining the element in this position while ascertaining the pressure in each of the fluid paths; and comparing the fluid pressure in each of the fluid paths of each pair of the fluid paths to determine which, if either, of the paths of each pair has the fluid pressure therein changed to detect the orientation of the element in accordance with the location of the identifying means relative to the fluid paths if the surface having the identifying means is adjacent to the fluid paths.
Claim 15
Independent Claim
154 words
A method for determining the orientation of an element having an identifying means in a surface thereof without contacting the surface including: disposing a surface of the element in spaced relation and adjacent to each of an even number of fluid paths so that the identifying means is aligned with only one of the fluid paths if the surface having the identifying means is adjacent to the fluid paths; retaining the element in this position while ascertaining the pressure in each of the fluid paths; and comparing the fluid pressure in each of the fluid paths of each pair of the fluid paths to determine which, if either, of the paths of each pair has the fluid pressure therein changed to detect the orientation of the element in accordance with the location of the identifying means relative to the fluid paths if the surface having the identifying means is adjacent to the fluid paths.
Claim 16
Dependent Claim
30 words
The method according to claim 13 in which each of the plurality of fluid paths has a restrictive opening disposed adjacent to the surface of the element but spaced therefrom.
Claim 17
Dependent Claim
66 words
The method according to claim 14 including: supplying the fluid to each of the paths from a common fluid pressure source; reducing the pressure from the common fluid pressure source the same amount in each of the paths; and determining the pressure in each of the paths after the pressure is reduced and before the opening for determination of the pressure in each of the paths.
Claim 18
Dependent Claim
32 words
The method according to claim 15 including indicating which, if any, of the openings has the identifying means disposed adjacent thereto in accordance with the fluid pressure in each of the paths.
Claim 19
Dependent Claim
27 words
The method according to claim 16 in which the identifying means in the surface of the element is a slot that does not extend through the element.
References Cited (Backward Citations)
GB1166178A
Cited
GB1358524A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-04 | 1981-01-03 | 1981-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-04 | 1985-01-03 | 1985-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-04 | 1989-01-03 | 1989-07-05 | $7700.00 | Window Closed / Lapsed |