Patent ID: 7836981

Claim:
A cutting element comprising: a substrate comprising a first portion defining an end surface of said substrate and a second portion; and at least a TSP material portion, wherein said TSP material portion is a polycrystalline diamond portion selected from the group of polycrystalline diamond portions consisting essentially of polycrystalline diamond portions having at least some of a cobalt in such polycrystalline diamond portions leached and polycrystalline diamond layers formed with a thermally compatible silicone carbide binder, wherein at least a first section of said at least a TSP material portion obliquely penetrates said substrate, wherein said at least a first section is mechanically locked by said first and second substrate portions in at least one direction, wherein said TSP material portion comprises a second section having a first surface opposite a second surface, wherein said first surface extends beyond the end surface and is exposed and the second surface faces the substrate.