Superabrasive tools having substantially leveled particle tips and associated methods
DCFirst Claim
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1. A CMP pad dresser, comprising:
- a first monolayer of superabrasive particles disposed on and coupled to one side of a metal support layer; and
a second monolayer of superabrasive particles disposed on and coupled to the metal support layer on an opposite side from the first monolayer, wherein the superabrasive particles of the second monolayer are positioned to have substantially the same distribution as the superabrasive particles of the first monolayer; and
further comprising a rigid support coupled to the second monolayer of superabrasive particles opposite the first monolayer.
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Abstract
Superabrasive tools and methods for making and using the same are provided. In one aspect, for example, a CMP pad dresser includes a first monolayer of superabrasive particles disposed on and coupled to one side of a metal support layer and a second monolayer of superabrasive particles disposed on and coupled to the metal support layer on an opposite side from the first monolayer. The superabrasive particles of the second monolayer are positioned to have substantially the same distribution as the superabrasive particles of the first monolayer.
319 Citations
19 Claims
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1. A CMP pad dresser, comprising:
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a first monolayer of superabrasive particles disposed on and coupled to one side of a metal support layer; and a second monolayer of superabrasive particles disposed on and coupled to the metal support layer on an opposite side from the first monolayer, wherein the superabrasive particles of the second monolayer are positioned to have substantially the same distribution as the superabrasive particles of the first monolayer; and
further comprising a rigid support coupled to the second monolayer of superabrasive particles opposite the first monolayer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of making a CMP pad dresser, comprising:
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disposing a first monolayer of superabrasive particles on a metal support layer; disposing a second monolayer of superabrasive particles on the metal support layer on a side opposite the first monolayer, wherein the superabrasive particles of the second monolayer are positioned to have substantially the same distribution as the superabrasive particles of the first monolayer; bonding the first monolayer of superabrasive particles and the second monolayer of superabrasive particles to the metal support layer such that symmetrical forces due to the substantially similar distribution between the first monolayer and the second monolayer precludes substantial warping of the metal support layer; and coupling the second monolayer of superabrasive particles to a rigid support. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification