GB1413904A - Replication of a surface of a soft substrate - Google Patents
Replication of a surface of a soft substrateInfo
- Publication number
- GB1413904A GB1413904A GB1779573A GB1779573A GB1413904A GB 1413904 A GB1413904 A GB 1413904A GB 1779573 A GB1779573 A GB 1779573A GB 1779573 A GB1779573 A GB 1779573A GB 1413904 A GB1413904 A GB 1413904A
- Authority
- GB
- United Kingdom
- Prior art keywords
- master
- stamping
- nickel
- mils
- april
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/04—Coating on selected surface areas, e.g. using masks
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/86—Re-recording, i.e. transcribing information from one magnetisable record carrier on to one or more similar or dissimilar record carriers
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Thin Magnetic Films (AREA)
- Moulding By Coating Moulds (AREA)
- Physical Vapour Deposition (AREA)
- Manufacturing Optical Record Carriers (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
1413904 Electro-forming nickel record stamping master; vapour depositing Cr and Au layers for replicas RCA CORPORATION 13 April 1973 [19 April 1972] 17795/73 Headings C7B and C7F [Also in Division G5] A stamping master for making video disc records is formed by mounting a recorded master on a turntable in a vacuum chamber, vapour depositing thereon a layer of chromium between 50-500Š thick followed by a layer of gold between 100-2000Š thick as the turntable revolves at about 60 r.p.m., removing the coated master from the chamber and electrolytically plating the gold surface in a first bath with bright nickel to a thickness of 0.3 to 2 mils, followed in a second bath with a plating of standard nickel to a final thickness of about 10 mils. The stamping master is then separated from the recorded master.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US24565972A | 1972-04-19 | 1972-04-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1413904A true GB1413904A (en) | 1975-11-12 |
Family
ID=22927567
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1779573A Expired GB1413904A (en) | 1972-04-19 | 1973-04-13 | Replication of a surface of a soft substrate |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5213501B2 (en) |
CA (1) | CA1017278A (en) |
DE (1) | DE2319088A1 (en) |
FR (1) | FR2180746B1 (en) |
GB (1) | GB1413904A (en) |
NL (1) | NL7305462A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51116124A (en) * | 1975-04-04 | 1976-10-13 | Pioneer Electronic Corp | Electrocasting mold drawing method |
GB2015577B (en) * | 1978-01-30 | 1983-02-02 | Citizen Watch Co Ltd | Decorative plate for a timepiece |
US4262875A (en) * | 1979-08-17 | 1981-04-21 | Rca Corporation | Information record stampers |
EP0081649B1 (en) * | 1981-12-11 | 1987-01-14 | Discovision Associates | Method for forming optical discs |
DE3308701C2 (en) * | 1983-03-11 | 1986-09-18 | Fa. Otto Ehinger, 7900 Ulm | Process for the production of jewelry and body goods for the gold and silver goods industry |
-
1973
- 1973-04-10 FR FR7312862A patent/FR2180746B1/fr not_active Expired
- 1973-04-12 CA CA168,603A patent/CA1017278A/en not_active Expired
- 1973-04-13 JP JP4265273A patent/JPS5213501B2/ja not_active Expired
- 1973-04-13 GB GB1779573A patent/GB1413904A/en not_active Expired
- 1973-04-16 DE DE19732319088 patent/DE2319088A1/en active Pending
- 1973-04-18 NL NL7305462A patent/NL7305462A/xx not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
CA1017278A (en) | 1977-09-13 |
NL7305462A (en) | 1973-10-23 |
FR2180746A1 (en) | 1973-11-30 |
FR2180746B1 (en) | 1977-02-04 |
JPS5213501B2 (en) | 1977-04-14 |
JPS4921337A (en) | 1974-02-25 |
DE2319088A1 (en) | 1973-11-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |