Manufacture of surface relief structures

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12169359
APP PUB NO 20220342297A1
SERIAL NO

17753096

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A method and apparatus for the etching of variable depth features in a substrate is described. Movement of the substrate relative to an etchant (e.g. into or out of the etchant) during the etching process is utilised to provide a varying etch time, and hence depth, across the substrate, and in various examples this is enabled without requiring a varying mask.

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Patent Owner(s)

Patent OwnerAddress
SNAP INC3000 31ST STREET SANTA MONICA CA 90405

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hawke, Tracey Filton Bristol, GB 3 0
Macken, Ian Rochester Kent, GB 2 0
Mills, Rory Rochester Kent, GB 2 0
Sturland, Ian Filton Bristol, GB 5 33
Venables, Mark Filton Bristol, GB 3 0

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