3615047

Information

• Patent Grant
• 3615047

• References
• Source

• Patent Number

  3,615,047

• Date Filed

  Not available

• Date Issued

  Tuesday, October 26, 1971
  53 years ago

• CPC

  • H01L21/67092 - Apparatus for mechanical treatment
  • B28D5/0047 - using fluid or gas pressure
  • H01L21/302 - to change their surface-physical characteristics or shape
  • H01L49/02 - Thin-film or thick-film devices
  • Y10T225/10 - Methods
  • Y10T225/12 - With preliminary weakening
  • Y10T225/30 - Breaking or tearing apparatus
  • Y10T225/325 - With means to apply moment of force to weakened work

• US Classifications

  • 225 - Severing by tearing or breaking
  • 257 - Active solid-state devices