Master for device replication

A method of device replication comprising:

• providing a layer of glass which possesses stored energy in the form of compressive stress,
• heating by light energy localized portions of a surface of said layer sufficiently to release the compressive stress energy in the form of surface bumps at said localized portions, and
• utilizing said bumped surface to form at least one mirror image surface copy of said bumped surface.

A method of device replication comprising:

• providing a layer of glass which possesses stored energy in the form of compressive stress due to an ion exchange, such compressive stress due to an ion exchange being achieved by exposing a glass containing an oxide modifier to metallic ions that have both a greater affinity for occupying lattice sites of the glass than do the ions of the oxide modifier and an atomic radius larger than the atomic radius of the ions of the oxide modifier whereby the metallic ions replace glass lattice sites previously occupied by ions of oxide modifier,
• heating localized portions of a surface of said layer sufficiently to release the compressive stress energy in the form of surface bumps at said localized portions, and
• utilizing said bumped surface to form at least one mirror image surface copy of said bumped surface.

A method of device replication comprising:

• providing a layer of glass which possesses stored energy in the form of compressive stress due to an ion exchange, such compressive stress due to an ion exchange being achieved by exposing a glass containing an oxide modifier to metallic ions that have both a greater affinity for occupying lattice sites of the glass than do the ions of the oxide modifier and an atomic radius larger than the atomic radius of the ions of the oxide modifier whereby the metallic ions replace glass lattice sites previously occupied by ions of the oxide modifier,
• heating by light energy localized portions of a surface of said layer sufficiently to release the compressive stress energy in the form of surface bumps at said localized portions, and
• utilizing said bumped surface to form at least one mirror image surface copy of said bumped surface.

A method of device replication comprising:

• providing a layer of borosilicate glass which possesses stored energy in the form of compressive stress due to an ion exchange, such compressive stress due to an ion exchange being achieved by exposing a borosilicate glass containing a sodium oxide modifier to a molten bath of metallic ions that have both a greater affinity for occupying lattice sites of the glass than do the sodium ions of the oxide modifier and an atomic radius larger than the atomic radius of the sodium ions of the oxide modifier whereby the metallic ions replace glass lattice sites previously occupied by sodium ions of the oxide modifier,
• heating localized portions of a surface of said layer sufficiently to release the compressive stress energy in the form of surface bumps at said localized portions, and
• utilizing said bumped surface to form at least one mirror image surface copy of said bumped surface.