Process for forming an electrode

• US 3,898,722 A
• Filed: 04/02/1973
• Issued: 08/12/1975
• Est. Priority Date: 04/02/1973
• Status: Expired due to Term

• Current Assignee: Foote D. Paul
• Original Assignee: Foote D. Paul
• Inventors: Foote, D. Paul
• Primary Examiner(s): Mall, Carl E.
• Application Number:
  US05/347,277
• Time in Patent Office: 862 Days
• Field of Search: 29/25.42,625 317/261 156/3,8,11,16 250/315A
• US Class Current: 29/25.42
• CPC Class Codes: G03B 42/02 using X-rays
• CPC Class Codes: G03G 15/758 relating to plate or sheet
• CPC Class Codes: Y10T 29/435 Solid dielectric type

Abstract

A process for forming an electrode utilized in apparatus for minimizing the smear of an image produced by xeroradiography. A sheet comprising a thin layer of dielectric material sandwiched between two X-ray transparent electrically conductive surfaces is cut to the desired outside dimensions. A chemically resistant material is applied to both conductive surfaces in a predetermined pattern. The sheet is dipped into an etching bath removing material from the unmasked portions of the conductive surfaces and then dipped into a neutralizing solution to neutralize the etching chemical. The sheet is then rinsed, dried and the resistant material is removed. An adhesive material is coated on one of the conductive surfaces whereby the sheet, formed into the desired electrode, is affixed to the lid of a cassette utilized in the xeroradiography process

Claims

2. The method as defined in claim 1 further including the steps of neutralizing the etchant remaining on the starting material subsequent to step (D), and then rinsing and drying the starting material.

3. The method as defined in claim 1 wherein said conductive surfaces are X-ray transparent.

4. The method as defined in claim 1 wherein said dielectric material comprises Mylar and said conductive surface comprise aluminum.