Patents by Inventor Rupendra M. Anklekar

Rupendra M. Anklekar has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of forming a scribe line on a passive electronic component substrate
    Patent number: 7241669
    Abstract: A method of forming a scribe line having a sharp snap line entails directing a UV laser beam along a ceramic or ceramic-like substrate such that a portion of the thickness of the substrate is removed. The UV laser beam forms a scribe line in the substrate without appreciable substrate melting so that a clearly defined snap line forms a region of high stress concentration extending into the thickness of the substrate. Consequently, multiple depthwise cracks propagate into the thickness of the substrate in the region of high stress concentration in response to a breakage force applied to either side of the scribe line to effect clean fracture of the substrate into separate circuit components. The formation of this region facilitates higher precision fracture of the substrate while maintaining the integrity of the interior structure of each component during and after application of the breakage force.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: July 10, 2007
    Assignee: Electro Scientific Industries, Inc.
    Inventors: Edward J. Swenson, Yunlong Sun, Manoj Kumar Sammi, Jay Christopher Johnson, Doug Garcia, Rupendra M. Anklekar