Method for vapor depositing a cerium oxide film
Patent 4242373 Issued on December 30, 1980. Estimated Expiration Date: 
May 30, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 30, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3020432 3350595 3632442 3644101 Method for manufacturing a target for an image pickup tube Semiconductor camera-tube target Patent #: 3988758 InventorsApplicationNo. 05/910344 filed on 05/30/1978US Classes:427/74, Photoelectric427/248.1, COATING BY VAPOR, GAS, OR SMOKE427/75Mosaic or nonuniform coatingExaminersPrimary: Hoffman, James R.Attorney, Agent or FirmInternational ClassC23C 14/08 (20060101)Foreign Application Priority Data1976-02-20 JPAbstractA method for forming a thin film of cerium oxide as a blocking layer which constitutes a portion of a photoelectric film of a blocking type image pickup tube is disclosed. A substrate deposition rate in a vacuum deposition process is established in a range between 0.01 to 0.6 A/sec to prevent the deposition of particles which result in black or white spots in a picture image. It is more effective to select a particle size of 5 μ or more for the primary particles to be deposited. | |
