Patent US5207955A successfully refreshed from Google Patents.
US5207955A
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US
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Process for removing and/or structuring surfaces by irradiating with a light source
Assignee: Excelitas Noblelight GmbH
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Filing: 1991-12-27
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Granted: 1993-05-04
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Expires: 2011-12-27
Abstract
Abstract The process removes or partially structures the surface of a substrate of a polymer, i.e. polyamide, polyimide and polycarbonate. The surface of the substrate is irradiated in a vacuum with an incoherent UV radiation which has a wavelength of 60 nm to 400 nm, preferably a wavelength of 172 nm. In order to form the structures, a mask is placed on the surface of the substrate.
Inventors
- 👤 Hilmar Esrom
- 👤 Ulrich Kogelschatz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:57
CPC Classifications
B; B29; B29C; B29C59/00; B29C59/16; B29C35/00; B29C35/02; B29C35/08; B29C35/0805; B29C2035/0827; B29K; B29K2069/00; B29K2077/00; B29K2079/00; H; H05; H05K; H05K3/00; H05K3/0011; H05K3/0017
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
66 words
In a process for removing and/or structuring surfaces by irradiating with a light source, the improvement which comprises producing incoherent UV radiation having a wavelength of substantially 172 nm with a high-power lamp filled with xenon gas filling, irradiating a polyamide surface for 1 to 30 minutes in a vacuum with the incoherent UV radiation, and removing and/or structuring the polyamide surface to substantially 1.5 μm.
Claim 2
Dependent Claim
66 words
In a process for removing and/or structuring surfaces by irradiating with a light source, the improvement which comprises producing incoherent UV radiation having a wavelength of substantially 172 nm with a high-power lamp filled with xenon gas filling, irradiating a polyamide surface for 1 to 30 minutes in a vacuum with the incoherent UV radiation, and removing and/or structuring the polyamide surface to substantially 1.5 μm.
Claim 3
Dependent Claim
67 words
In a process for removing and/or structuring surfaces by irradiating with a light source, the improvement which comprises producing incoherent UV radiation having a wavelength of substantially 172 nm with a high-power lamp filled with a xenon gas filling, irradiating a polyimide surface for 1 to 30 minutes in a vacuum with the incoherent UV radiation, and removing and/or structuring the polyimide surface to substantially 1.5 μm.
Claim 4
Dependent Claim
67 words
In a process for removing and/or structuring surfaces by irradiating with a light source, the improvement which comprises producing incoherent UV radiation having a wavelength of substantially 172 nm with a high-power lamp filled with a xenon gas filling, irradiating a polyimide surface for 1 to 30 minutes in a vacuum with the incoherent UV radiation, and removing and/or structuring the polyimide surface to substantially 1.5 μm.
Claim 5
Dependent Claim
67 words
In a process for removing and/or structuring surfaces by irradiating with a light source, the improvement which comprises producing incoherent UV radiation having a wavelength of substantially 172 nm with a high-power lamp filled with a xenon gas filling, irradiating a polycarbonate surface for 1 to 30 minutes in a vacuum with the incoherent UV radiation, and removing and/or structuring the polycarbonate surface to substantially 1.5 μm.
Claim 6
Dependent Claim
67 words
In a process for removing and/or structuring surfaces by irradiating with a light source, the improvement which comprises producing incoherent UV radiation having a wavelength of substantially 172 nm with a high-power lamp filled with a xenon gas filling, irradiating a polycarbonate surface for 1 to 30 minutes in a vacuum with the incoherent UV radiation, and removing and/or structuring the polycarbonate surface to substantially 1.5 μm.
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) | 1996-05-03 | 1996-11-02 | 1997-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-03 | 2000-11-02 | 2001-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-03 | 2004-11-02 | 2005-05-04 | $7700.00 | Window Closed / Lapsed |