US4721977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrographic printer with abutting chips each having an array of charge-discharging elements
Assignee: Intel Corp
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Filing: 1984-11-26
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Granted: 1988-01-26
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Expires: 2004-11-26
Abstract
Abstract A multiple chip Led linear array including 2048 elements is achieved by a unique wafer dicing technique which allows LEDs in abutting chips to be separated by the same distance as adjacent elements on a single chip. The linear array is employed in photocopy apparatus to discharge a linear segment of a photosensitive drum.
Inventors
- 👤 Kensuke Fukae
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:54
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/435; B41J2/447; B41J2/45; Y; Y10; Y10S; Y10S257/00; Y10S257/926
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
115 words
A linear array of semiconductor chips, each of said chips having defined thereon a linear array of semiconductor elements arranged along a common axis, each of said elements having a dimension X along said axis, said elements having a separation S along said axis between adjacent ones thereof, each of said chips having first and second end elements respectively adjacent first and second opposite edges thereof, said second element of one of said chips being spaced apart from said first end element of the next adjacent chip along said axis by said separation S, the edge of each chip in the array that is not at an end of the array having a two-sided bevel.
Claim 2
Dependent Claim
115 words
A linear array of semiconductor chips, each of said chips having defined thereon a linear array of semiconductor elements arranged along a common axis, each of said elements having a dimension X along said axis, said elements having a separation S along said axis between adjacent ones thereof, each of said chips having first and second end elements respectively adjacent first and second opposite edges thereof, said second element of one of said chips being spaced apart from said first end element of the next adjacent chip along said axis by said separation S, the edge of each chip in the array that is not at an end of the array having a two-sided bevel.
Claim 3
Dependent Claim
13 words
An array according to claim 1, wherein S is less than 50 microns.
Claim 4
Dependent Claim
12 words
An array according to claim 2, wherein S is approximately 30 microns.
Claim 5
Dependent Claim
17 words
An array of semiconductor chips according to claim 2, wherein each of said chips comprises gallium arsenide.
Claim 6
Dependent Claim
14 words
An array of semiconductor chips according to claim 1, wherein said elements are LEDs.
Claim 7
Dependent Claim
24 words
An assembly for a photocopier, the assembly comprising: a photosensitive drum and, disposed proximately thereto, an array of semiconductor chips according to claim 5.
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) | 1991-01-25 | 1991-07-27 | 1992-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-25 | 1995-07-27 | 1996-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-25 | 1999-07-27 | 2000-01-26 | $7700.00 | Window Closed / Lapsed |