US5003374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor wafer
Assignee: Philips North America LLC
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Filing: 1988-05-23
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Granted: 1991-03-26
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Expires: 2008-05-23
Abstract
Abstract A method and semiconductor devices and wafers produced therefrom are provided which comprise at least one scribe lane formed in at least a peripheral edge, a metal film covering at least a portion of said scribe lane and having metal limiting means so preselectively spaced and configured that scribing the wafer in any direction along said portion of the scribe lane containing metal limiting means will result in a bent metal portion within the range of about 0 to 10 microns.
Inventors
- 👤 Edward R. Vokoun, III
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:12
CPC Classifications
H; H10; H10P; H10P54/00; H10P52/00
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
93 words
A semiconductor wafer which comprises at least two physically interconnected semiconductor devices including at least one scribe lane formed in at least a peripheral edge of the semiconductor devices; and a metal film covering at least a portion of said scribe lane to define a scribable area, the metal film containing preselectively spaced and configured metal limiting means distributed throughout substantially the entire area of the metal film in the scribe lane, said scribable area when scribed comprising metal shards having a size within the range of about 0 to about 10 microns.
Claim 2
Dependent Claim
93 words
A semiconductor wafer which comprises at least two physically interconnected semiconductor devices including at least one scribe lane formed in at least a peripheral edge of the semiconductor devices; and a metal film covering at least a portion of said scribe lane to define a scribable area, the metal film containing preselectively spaced and configured metal limiting means distributed throughout substantially the entire area of the metal film in the scribe lane, said scribable area when scribed comprising metal shards having a size within the range of about 0 to about 10 microns.
Claim 3
Dependent Claim
32 words
A semiconductor wafer as claimed in claim 1 in which the metal limiting means are a plurality of voids in the shape of squares, rectangles, holes, slits, crosses, triangles and combinations thereof.
Claim 4
Dependent Claim
27 words
A semiconductor wafer as claimed in claim 2 in which the voids are so arranged that no space between adjacent semiconductor devices is greater than 10 microns.
Claim 5
Dependent Claim
17 words
A semiconductor wafer as claimed in claim 1 wherein the metal shard is 7 microns or less.
Claim 6
Dependent Claim
23 words
A semiconductor wafer as claimed in claim 4 wherein the metal limiting means are spaced about 10 microns or less in all directions.
Claim 7
Dependent Claim
35 words
A semiconductor wafer as claimed in claim 1 wherein the scribe lane contains a device selected from a process control monitor, alignment, testing, and other processing device, said device also containing said metal limiting means.
Claim 8
Dependent Claim
25 words
A semiconductor wafer as claimed in claim 6 wherein voids are distributed throughout substantially the entire area of the device contained in the scribe lane.
Claim 9
Dependent Claim
17 words
A semiconductor wafer as claimed in claim 7 wherein the distribution of said voids is substantially uniform.
Claim 10
Dependent Claim
17 words
A semiconductor wafer as claimed in claim 8 wherein the distribution of said voids is substantially uniform.
Claim 11
Dependent Claim
23 words
A semiconductor wafer as claimed in claim 1 wherein the metal film covers substantially the entire width and length of the scribe lane.
Claim 12
Dependent Claim
62 words
A semiconductor device having at least one scribe lane area formed in at least a peripheral edge thereof and a metal film covering substantially said scribe lane area the metal film containing preselectively spaced and configured voids and at least one scribable portion, said scribable portion when scribed containing metal shards that are less than about 10 microns in width and length.
Claim 13
Dependent Claim
62 words
A semiconductor device having at least one scribe lane area formed in at least a peripheral edge thereof and a metal film covering substantially said scribe lane area the metal film containing preselectively spaced and configured voids and at least one scribable portion, said scribable portion when scribed containing metal shards that are less than about 10 microns in width and length.
Claim 14
Dependent Claim
31 words
A semiconductor device as claimed in claim 11 in which the metal film contains a plurality of voids in the shape of squares, rectangles, holes, slits, crosses, triangles and combinations thereof.
Claim 15
Dependent Claim
26 words
A semiconductor device as claimed in claim 12 wherein the voids are so arranged that no space between adjacent semiconductor devices is greater than 10 microns.
Claim 16
Dependent Claim
24 words
A semiconductor device as claimed in claim 12 wherein voids are distributed throughout substantially the entire area of the metal in the scribe lane.
Claim 17
Dependent Claim
17 words
A semiconductor device as claimed in claim 12 wherein the distribution of said voids is substantially uniform.
Claim 18
Dependent Claim
17 words
A semiconductor device as claimed in claim 1 wherein the metal shard is 7 microns or less.
Claim 19
Dependent Claim
21 words
A semiconductor device as claimed in claim 16 wherein the voids are spaced about 10 microns or less in all directions.
Claim 20
Dependent Claim
35 words
A semiconductor device as claimed in claim 11 wherein the scribe lane contains a device selected from a process control monitor, alignment, testing, and other processing device, said device also containing said metal limiting means.
Claim 21
Dependent Claim
25 words
A semiconductor device as claimed in claim 18 wherein voids are distributed throughout substantially the entire area of the device contained in the scribe lane.
Claim 22
Dependent Claim
17 words
A semiconductor device as claimed in claim 19 wherein the distribution of said voids is substantially uniform.
Claim 23
Dependent Claim
82 words
A semiconductor device having at least one scribe lane area formed in at least a peripheral edge thereof and a metal film covering at least a portion of said scribe lane to define a scribable area, the metal film containing preselectively spaced and configured metal limiting means distributed throughout substantially the entire area of the metal film in the scribe lane, said scribable area when scribed comprising metal shards having a size within the range of about 0 to about 10 microns.
Claim 24
Dependent Claim
82 words
A semiconductor device having at least one scribe lane area formed in at least a peripheral edge thereof and a metal film covering at least a portion of said scribe lane to define a scribable area, the metal film containing preselectively spaced and configured metal limiting means distributed throughout substantially the entire area of the metal film in the scribe lane, said scribable area when scribed comprising metal shards having a size within the range of about 0 to about 10 microns.
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) | 1994-03-25 | 1994-09-24 | 1995-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-03-25 | 1998-09-24 | 1999-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-03-25 | 2002-09-24 | 2003-03-26 | $7700.00 | Window Closed / Lapsed |