US4504529A
Expired / Lapsed
US
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Xerographic method for dry sensitization and electroless coating of an insulating surface and a powder for use with the method
Assignee: LK EL-ARTIKLER AS
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Filing: 1982-06-18
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Granted: 1985-03-12
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Expires: 2002-06-18
Abstract
Abstract Disclosed is a method for the xerographic, pattern-wise deposition of a dielectric powder that is sensitized with a metal compound to enable the electroless plating of a pattern formed by said powder.
Inventors
- 👤 Gunnar Sorensen
- 👤 Leo G. Svendsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:30
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/10; H05K3/18; H05K3/181; H05K3/182; C; C23; C23C; C23C18/00; C23C18/16; C23C18/1601; C23C18/1603; C23C18/1607; C23C18/1608; C23C18/18; C23C18/20; C23C18/28; C23C18/285; G; G03; G03G; G03G15/00; G03G15/22; G03G15/225; G03G15/65; G03G15/6582; G03G15/6585; H05K2203/00; H05K2203/05; H05K2203/0502; H05K2203/0517; H05K3/12; H05K3/1266; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2998
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
66 words
A method for the dry, selective sensitization of the surface of an insulating substrate and subsequent electroless deposition of a metal, comprising: xerographically depositing a dielectric powder containing a metal compound on an insulator substrate in a desired pattern; fixing said deposited powder on the surface of said substrate; and electrolessly depositing a conductive metal from solution onto the pattern defined by said xerographically deposited powder.
Claim 2
Independent Claim
66 words
A method for the dry, selective sensitization of the surface of an insulating substrate and subsequent electroless deposition of a metal, comprising: xerographically depositing a dielectric powder containing a metal compound on an insulator substrate in a desired pattern; fixing said deposited powder on the surface of said substrate; and electrolessly depositing a conductive metal from solution onto the pattern defined by said xerographically deposited powder.
Claim 3
Dependent Claim
33 words
The method of claim 1, wherein the main constituent of said dielectric powder is a thermoplastic material, said powder comprising: a Sn +2 compound precipitated on the surface of each thermoplastic powder particle.
Claim 4
Dependent Claim
29 words
The method of claim 1, wherein the main constituent of said dielectric powder is a thermoplastic material, said powder comprising: a Sn +2 compound distributed thoughout each powder particle.
Claim 5
Dependent Claim
25 words
The method of claim 2 or 3, wherein the surface of the insulator substrate to be sensitized is wetted by said plastic material when molten.
Claim 6
Dependent Claim
33 words
The method of claim 1, wherein said insulator substrate is treated with an organic solvent which promotes the adhesion between the dielectric powder applied to the substrate and the surface of the substrate.
Claim 7
Dependent Claim
28 words
The method of claim 1, wherein the adhesion between applied powder particles and the surface of the insulator substrate is achieved by local melting of said powder particles.
Claim 8
Dependent Claim
18 words
The method of claim 1, 2, 3, 5 or 6, wherein said powder particles contain an infrared-absorbing material.
Claim 9
Dependent Claim
29 words
The method of claim 1, 2, 3, 5 or 6, wherein said powder particles comprise as their main constituent a material having a large loss angle at microwave frequencies.
Claim 10
Dependent Claim
21 words
A dielectric powder, comprising: particles of a thermoplastic material containing a Sn +2 compound precipitated on the surfaces of the particles.
Claim 11
Dependent Claim
21 words
A dielectric powder, comprising: particles of a thermoplastic material containing a Sn +2 compound precipitated on the surfaces of the particles.
Claim 12
Dependent Claim
18 words
A dielectric powder, comprising: particles of a thermoplastic material containing a Sn +2 compound distributed throughout each particle.
Claim 13
Dependent Claim
18 words
A dielectric powder, comprising: particles of a thermoplastic material containing a Sn +2 compound distributed throughout each particle.
Claim 14
Independent Claim
67 words
A method for the dry, selective sensitization of the surface of an insulating substrate and subsequent electroless deposition of a metal, comprising: xerographically depositing a dielectric powder containing an ionic stannous compound on an insulator substrate in a desired pattern; fixing said deposited powder on the surface of said substrate; and electrolessly depositing a conductive metal from solution onto the pattern defined by said xerographically deposited powder.
Claim 15
Independent Claim
67 words
A method for the dry, selective sensitization of the surface of an insulating substrate and subsequent electroless deposition of a metal, comprising: xerographically depositing a dielectric powder containing an ionic stannous compound on an insulator substrate in a desired pattern; fixing said deposited powder on the surface of said substrate; and electrolessly depositing a conductive metal from solution onto the pattern defined by said xerographically deposited powder.
Claim 16
Independent Claim
95 words
A method for the dry, selective sensitization of the surface of an insulating substrate and subsequent electroless deposition of a metal comprising: xerographically depositing a dielectric powder containing a metal compound as the sensitizing species for said subsequent electroless deposition on an insulator substrate in a desired pattern; fixing said deposited powder on the surface of said substrate by a method which does not hinder the sensitizing function of said metal compound in said subsequent electroless deposition step; and electrolessly depositing a conductive metal from solution onto the pattern defined by said xerographically deposited powder.
Claim 17
Independent Claim
95 words
A method for the dry, selective sensitization of the surface of an insulating substrate and subsequent electroless deposition of a metal comprising: xerographically depositing a dielectric powder containing a metal compound as the sensitizing species for said subsequent electroless deposition on an insulator substrate in a desired pattern; fixing said deposited powder on the surface of said substrate by a method which does not hinder the sensitizing function of said metal compound in said subsequent electroless deposition step; and electrolessly depositing a conductive metal from solution onto the pattern defined by said xerographically deposited powder.
References Cited (Backward Citations)
US2910351A
Cited
US2966429A
Cited
US3043685A
Cited
US2939804A
Cited
US3231374A
Cited
US3352731A
Cited
US3226256A
Cited
US3350202A
Cited
US3942983A
Cited
US3647450A
Cited
US3745045A
Cited
US3880689A
Cited
US4042730A
Cited
US4307168A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-03-11 | 1988-09-10 | 1989-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-11 | 1992-09-10 | 1993-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-11 | 1996-09-10 | 1997-03-12 | $7700.00 | Window Closed / Lapsed |