Methods of patterning and making masks for three-dimensional substrates
AssigneeJohnson & Johnson Vision Care, Inc.
InventorsPraveen Pandojirao, James D. Riall, Adam Toner, Jeffrey Miller
Life of this patent
Estimating the term…
Abstract
The present invention provides a method of making a mask for patterning a three-dimensional substrate. A mandrel includes a form machined in a surface corresponding to a shape of the substrate. A layer of material is deposited in a first region of the form and a metal layer is deposited in a second region of the form. A portion of the mandrel is subsequently removed. The present invention also provides a method of patterning a three-dimensional substrate with a mask.
Claims21
A method of making a mask for patterning a three-dimensional substrate comprising:
- providing a mandrel including a form machined in a surface thereof corresponding to a shape of said three-dimensional substrate;
- depositing a plating layer in a first region of said form;
- depositing a metal layer in a second region of said form, wherein said second region is different from said first region;
- and
- removing a portion of said mandrel below said plating layer in said first region and said metal layer in said second region.
A method of patterning a three-dimensional substrate with a mask comprising:
- providing said three-dimensional substrate;
- overlying said mask on said substrate, said mask including a first region separated from a second region by an aperture;
- and
- depositing a layer through said aperture onto said three-dimensional substrate.
A three-dimensional substrate comprising:
- a lens section;
- a non-planar section formed outside of said lens section;
- and
- a ring-shaped layer formed on said non-planar section, said ring-shaped layer having a thickness less than about 100 microns.
Dependencies are inferred from the claim text.