Patent US5330878A successfully refreshed from Google Patents.
US5330878A
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US
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Method and apparatus for patterning an imaging member
Assignee: Texas Instruments Inc
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Filing: 1993-04-14
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Granted: 1994-07-19
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Expires: 2013-04-14
Abstract
Abstract A device for patterning an imaging member (46) is provided. The device comprises a light source (24) which emits light rays (26). Light rays (26) pass through a collimator lens (28) to collimate the light rays (30). The light then strikes a spatial light modulator (32) which is controlled by a computer (40) to reflect the light (42). The light passes through an imaging lens (44) to magnify the pattern for striking imaging member (46). Imaging member (46) is thus patterned by changing modulator (32) by computer (40).
Inventors
- 👤 William E. Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:39
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/70; G03F7/70216; G03F7/70283; G03F7/70291; H; H05; H05K; H05K3/00; H05K3/0073; H05K3/0082
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
81 words
A method for patterning a printed circuit board coated with a light sensitive material comprising: a. generating light with a source; b. modulating light energy from said source into a pre-determined pattern, wherein said pre-determined pattern is formed by selectively addressing elements of a spatial light modulator; c. imaging said pre-determined pattern through an imaging lens; and repeatedly transporting said printed circuit board past said imaging lens in a mosaic pattern allowing said predetermined pattern to expose said light sensitive material.
Claim 2
Independent Claim
81 words
A method for patterning a printed circuit board coated with a light sensitive material comprising: a. generating light with a source; b. modulating light energy from said source into a pre-determined pattern, wherein said pre-determined pattern is formed by selectively addressing elements of a spatial light modulator; c. imaging said pre-determined pattern through an imaging lens; and repeatedly transporting said printed circuit board past said imaging lens in a mosaic pattern allowing said predetermined pattern to expose said light sensitive material.
Claim 3
Dependent Claim
11 words
The method of claim 1 wherein said light generated is ultraviolet.
Claim 4
Dependent Claim
17 words
The method of claim 1 wherein said transporting step includes moving a plate that supports said board.
Claim 5
Independent Claim
81 words
A method for patterning a reticle substrate used in the manufacture of printed circuit boards comprising: a. generating light with a source; b. modulating light energy from said source into a pre-determined pattern, wherein said pre-determined pattern is formed by selectively addressing elements of a spatial light modulator; c. imaging said pre-determined pattern through an imaging lens; and d. repeatedly transporting said reticle substrate past said imaging lens in a mosaic pattern allowing said predetermined pattern to expose said reticle substrate.
Claim 6
Independent Claim
81 words
A method for patterning a reticle substrate used in the manufacture of printed circuit boards comprising: a. generating light with a source; b. modulating light energy from said source into a pre-determined pattern, wherein said pre-determined pattern is formed by selectively addressing elements of a spatial light modulator; c. imaging said pre-determined pattern through an imaging lens; and d. repeatedly transporting said reticle substrate past said imaging lens in a mosaic pattern allowing said predetermined pattern to expose said reticle substrate.
Claim 7
Dependent Claim
11 words
The method of claim 4 wherein said light generated is ultraviolet.
Claim 8
Dependent Claim
17 words
The method of claim 4 wherein said transporting step includes moving a plate that supports said reticle.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1997-07-18 | 1998-01-17 | 1998-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-07-18 | 2002-01-17 | 2002-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-07-18 | 2006-01-17 | 2006-07-19 | $7700.00 | Window Closed / Lapsed |