Patent ID: 8905823

Claim:
An abrasive tool for conditioning a CMP pad, the tool comprising: a plate; a substrate having a first major surface and a second major surface opposite the first major surface and a coupling surface having a depression configured for complementary engagement with the plate; a first single layer of abrasive grains coupled to the first major surface through a first metal bond; a second single layer of abrasive grains coupled to the second major surface through a second metal bond; and a first coating at the first major surface and a second coating on the second major surface, wherein the first and the second coating are each selected from the group consisting of organic polymer fluororesin compositions, diamond-like carbon coatings, diamond-like nanocomposite coatings, and fluorinated nanocomposite coatings, and wherein the plate and the abrasive article are removably coupled via a coupling mechanism configured for reversible operation of the abrasive tool, and wherein the first single layer of abrasive grains and the second single layer of abrasive grains are spaced apart from the plate.