1863843

Information

• Patent Grant
• 1863843

• References
• Source

• Patent Number

  1,863,843

• Date Filed

  Not available

• Date Issued

  Tuesday, June 21, 1932
  92 years ago

• CPC

  • H01L21/161 - Preparation of the foundation plate, preliminary treatment oxidation of the foundation plate, reduction treatment
  • H01L21/02565 - Oxide semiconducting materials not being Group 12/16 materials
  • H01L21/02614 - Transformation of metal

• US Classifications

  • 148 - Metal treatment
  • 257 - Active solid-state devices