US3647456A - Method of making conductive silver images and emulsion therefor - Google Patents
Method of making conductive silver images and emulsion therefor Download PDFInfo
- Publication number
- US3647456A US3647456A US786366A US3647456DA US3647456A US 3647456 A US3647456 A US 3647456A US 786366 A US786366 A US 786366A US 3647456D A US3647456D A US 3647456DA US 3647456 A US3647456 A US 3647456A
- Authority
- US
- United States
- Prior art keywords
- silver
- image
- emulsion
- heated
- conductive silver
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910052709 silver Inorganic materials 0.000 title abstract description 32
- 239000004332 silver Substances 0.000 title abstract description 32
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title abstract description 31
- 239000000839 emulsion Substances 0.000 title abstract description 14
- 238000004519 manufacturing process Methods 0.000 title description 5
- OKIIEJOIXGHUKX-UHFFFAOYSA-L cadmium iodide Chemical compound [Cd+2].[I-].[I-] OKIIEJOIXGHUKX-UHFFFAOYSA-L 0.000 abstract description 14
- 229940075417 cadmium iodide Drugs 0.000 abstract description 7
- 239000000758 substrate Substances 0.000 abstract description 7
- ADZWSOLPGZMUMY-UHFFFAOYSA-M silver bromide Chemical compound [Ag]Br ADZWSOLPGZMUMY-UHFFFAOYSA-M 0.000 abstract description 6
- 238000002310 reflectometry Methods 0.000 abstract description 4
- 230000007423 decrease Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 6
- 108010010803 Gelatin Proteins 0.000 description 4
- 229920000159 gelatin Polymers 0.000 description 4
- 239000008273 gelatin Substances 0.000 description 4
- 235000019322 gelatine Nutrition 0.000 description 4
- 235000011852 gelatine desserts Nutrition 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 4
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910001961 silver nitrate Inorganic materials 0.000 description 2
- 235000012431 wafers Nutrition 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000012822 chemical development Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- -1 silver halide Chemical class 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
- G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
- G03C5/262—Processes using silver-salt-containing photosensitive materials or agents therefor using materials covered by groups G03C1/42 and G03C1/43
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/105—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by conversion of non-conductive material on or in the support into conductive material, e.g. by using an energy beam
- H05K3/106—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by conversion of non-conductive material on or in the support into conductive material, e.g. by using an energy beam by photographic methods
Definitions
- ABSTRACT A silver bromide emulsion containing cadmium iodide and coated on a substrate is employed to produce a latent silver image thereon.
- This latent image is developed in a high-resolution pattern developer to produce a silver image which when heated to a temperature of 200 to 450 C. produces an image having an electrical conductivity closely approaching that of bulk silver.
- the high-resolution pattern developer results in a feltlike structure of silver wires which when heated at higher temperatures decreases in reflectivity.
- This invention relates to the production of silver images. More particularly it relates to the making of silver images having unique and novel properties.
- a conducting silver image can advantageously be utilized in printed circuit techniques, one of the advantages, for example, flowing from such electrical conductivity being the eliminating of the aluminum layer in photoresists and the establishing of a silver pattern directly upon a wafer.
- a conducting silver image characterized by high spatial resolution would advantageously lend itself, for example, to the providing of a resistive means for writing nonconducting patterns therein.
- a novel photographic emulsion comprising silver bromide containing cadmium iodide.
- a method for producing electrically conductive silver images comprising using a coating of silver bromide emulsion containing cadmium iodide on a substrate to produce a latent image on the substrate, developing the latent image in a high resolution developer to provide a silver image and heating the silver image at a temperature of 200 to 450 C. to render the silver image electrically conductive.
- An example in carrying out the invention is to form an emulsion made by mixing 12 grams of gelatin, 80 ml. of water, 20 ml. of 50 percent silver nitrate solution, 20 ml. of 37.5 percent potassium bromide solution and 0.366 grams of cadmium iodide.
- the resulting emulsion is utilized as a photographic coating on a substrate, such as glass, to receive a latent photographic image, the latter image thereafter being developed in a high resolution pattern developer.
- the images could be heated at lower temperatures for longer periods. Thus, the images could be heated at 200 C. for periods up to 1 hour.
- the emulsion was also coated on different type substrates, such as silicon dioxide wafers, and the same results were obtained.
- a method of making an electrically conducting silver image comprising:
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US78636668A | 1968-12-23 | 1968-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3647456A true US3647456A (en) | 1972-03-07 |
Family
ID=25138378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US786366A Expired - Lifetime US3647456A (en) | 1968-12-23 | 1968-12-23 | Method of making conductive silver images and emulsion therefor |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3647456A (enrdf_load_stackoverflow) |
| DE (1) | DE1963527A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2026847A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1234847A (enrdf_load_stackoverflow) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060237321A1 (en) * | 2005-04-22 | 2006-10-26 | Eastman Kodak Company | Method of forming conductive tracks |
| US20070015094A1 (en) * | 2005-07-13 | 2007-01-18 | Konica Minolta Medical & Graphic, Inc. | Electromagnetic wave shielding material, method for manufacturing the same and electromagnetic wave shielding material for plasma display panel |
| US20070059646A1 (en) * | 2005-09-13 | 2007-03-15 | Eastman Kodak Company | Method of forming conductive tracks |
| WO2007031711A1 (en) * | 2005-09-13 | 2007-03-22 | Eastman Kodak Company | Method of forming conductive tracks for flexible electronic circuits |
| US20080206689A1 (en) * | 2005-04-22 | 2008-08-28 | Brooks Andrew S | Method of Forming Flexible Electronic Circuits |
| US20080290084A1 (en) * | 2005-09-13 | 2008-11-27 | Winscom Christopher J | Method of Forming a Flexible Heating Element |
| US20090242236A1 (en) * | 2005-09-13 | 2009-10-01 | Fyson John R | Method of forming conductive tracks |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2042200B (en) * | 1979-02-14 | 1983-03-09 | Drexler Tech | Laser pyrographic reflective recording medium |
| GB2058380B (en) * | 1979-09-06 | 1983-06-08 | Drexler Tech | Process for making a reflective data storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3109737A (en) * | 1958-05-26 | 1963-11-05 | Honeywell Regulator Co | Silver halide print-out emulsions combining cadmium iodide |
| US3305365A (en) * | 1962-11-12 | 1967-02-21 | Oriental Photo Ind Co Ltd | Photosensitive material |
| US3424581A (en) * | 1966-01-25 | 1969-01-28 | Polaroid Corp | Photographic emulsion of silver halide and derivatized gelatin capable of conducting electrical current |
-
1968
- 1968-12-23 US US786366A patent/US3647456A/en not_active Expired - Lifetime
-
1969
- 1969-11-13 GB GB55565/69A patent/GB1234847A/en not_active Expired
- 1969-11-17 FR FR6940039A patent/FR2026847A1/fr not_active Withdrawn
- 1969-12-18 DE DE19691963527 patent/DE1963527A1/de active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3109737A (en) * | 1958-05-26 | 1963-11-05 | Honeywell Regulator Co | Silver halide print-out emulsions combining cadmium iodide |
| US3305365A (en) * | 1962-11-12 | 1967-02-21 | Oriental Photo Ind Co Ltd | Photosensitive material |
| US3424581A (en) * | 1966-01-25 | 1969-01-28 | Polaroid Corp | Photographic emulsion of silver halide and derivatized gelatin capable of conducting electrical current |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060237321A1 (en) * | 2005-04-22 | 2006-10-26 | Eastman Kodak Company | Method of forming conductive tracks |
| US20080206689A1 (en) * | 2005-04-22 | 2008-08-28 | Brooks Andrew S | Method of Forming Flexible Electronic Circuits |
| US7563564B2 (en) | 2005-04-22 | 2009-07-21 | Eastman Kodak Company | Method of forming flexible electronic circuits |
| US20070015094A1 (en) * | 2005-07-13 | 2007-01-18 | Konica Minolta Medical & Graphic, Inc. | Electromagnetic wave shielding material, method for manufacturing the same and electromagnetic wave shielding material for plasma display panel |
| US20070059646A1 (en) * | 2005-09-13 | 2007-03-15 | Eastman Kodak Company | Method of forming conductive tracks |
| WO2007031711A1 (en) * | 2005-09-13 | 2007-03-22 | Eastman Kodak Company | Method of forming conductive tracks for flexible electronic circuits |
| US7449286B2 (en) | 2005-09-13 | 2008-11-11 | Eastman Kodak Company | Method of forming conductive tracks |
| US20080290084A1 (en) * | 2005-09-13 | 2008-11-27 | Winscom Christopher J | Method of Forming a Flexible Heating Element |
| US20090142559A1 (en) * | 2005-09-13 | 2009-06-04 | Peter Hewitson | Method of forming conductive tracks for flexible electronic circuits |
| US20090242236A1 (en) * | 2005-09-13 | 2009-10-01 | Fyson John R | Method of forming conductive tracks |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2026847A1 (enrdf_load_stackoverflow) | 1970-09-25 |
| GB1234847A (en) | 1971-06-09 |
| DE1963527A1 (de) | 1970-07-02 |
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