Cutting tool assembly including diamond cutting tips at half-pitch spacing for land feature creation

A diamond tooling machine used for creating grooves in a microreplication tool, the diamond tooling machine comprising:

• a cutting tool assembly comprising:
• a mounting structure;
• a first tool shank mounted in the mounting structure, the first tool shank including a first diamond secured in the first tool shank, wherein the first diamond secured in the first tool shank defines a first diamond tip that corresponds to a first groove to be created in the microreplication tool;
• a second tool shank mounted in the mounting structure, the second tool shank including a second diamond secured in the second tool shank, wherein the second diamond secured in the second tool shank defines a second diamond tip that corresponds to a second groove to be created in the microreplication tool, wherein positions of the first and second diamond tips define an integer number of pitches of grooves to be created in the microreplication tool;
• and
• a third tool shank mounted in the mounting structure, the third tool shank including a third diamond secured in the third tool shank, wherein the third diamond secured in the third tool shank defines a third diamond tip to create a land feature in the microreplication tool between the first and second grooves;
• and
• an apparatus that receives the cutting tool assembly and controls positioning of the cutting tool assembly relative to the microreplication tool.

A method comprising:

• defining a pitch spacing for a microreplication tool;
• creating a cutting tool assembly for creation of the microrelplication tool by:
• positioning first and second tool shanks in a mounting structure such that a cutting location of a first diamond tip associated with a first diamond secured in the first tool shank is a defined distance from a cutting location of a second diamond tip associated with a second diamond secured in the second tool shank, the defined distance corresponding to an integer number of the pitch spacing, wherein the defined distance is accurate to within a tolerance of less than approximately 10 microns;
• and
• positioning a third tool shank in a mounting structure such that a cutting location of a third diamond tip associated with a third diamond secured in the third tool shank is between the cutting locations of the first and second diamond tips to create a land feature in the microreplication tool.

A cutting tool assembly comprising:

• a mounting structure;
• a first tool shank mounted in the mounting structure, the first tool shank including a first diamond secured in the first tool shank, wherein the first diamond secured in the first tool shank defines a first diamond tip that corresponds to a groove to be created in a work piece;
• and
• a second tool shank mounted in the mounting structure, the second tool shank including a second diamond secured in the second tool shank, wherein the second diamond secured in the second tool shank defines a second diamond tip that corresponds to a land feature to be created in the work piece, wherein the second diamond tip is spaced at integer pitch spacing plus one-half pitch spacing relative to the first diamond tip, wherein a pitch refers to a distance between adjacent grooves created in the work piece, and wherein the integer pitch spacing plus one-half pitch spacing is accurate to within a tolerance of less than approximately 10 microns.