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2. Photomask - Wikipedia

   en.wikipedia.org/wiki/Photomask

   A photomask (also simply called a mask) is an opaque plate with transparent areas that allow light to shine through in a defined pattern. Photomasks are commonly used in photolithography for the production of integrated circuits (ICs or "chips") to produce a pattern on a thin wafer of material (usually silicon ).

3. Photolithography - Wikipedia

   en.wikipedia.org/wiki/Photolithography

   Unlike contact or proximity masks, which cover an entire wafer, projection masks (known as "reticles") show only one die or an array of dies (known as a "field") in a portion of the wafer at a time. Projection exposure systems (steppers or scanners) project the mask onto the wafer many times, changing the position of the wafer with every ...

4. The 19 Best LED Face Masks for Light Therapy Benefits at Home

   www.aol.com/best-led-light-therapy-masks...

   Foreo UFO 2 Power Mask & Light Therapy Device $279.00 Buy Now . Lyma Laser. Best Aesthetician-Approved Mask. Czech says that she is “in love” with the medical-grade Lyma laser from the UK ...

5. The 10 Best LED Face Masks to Address Wrinkles, Acne ... - AOL

   www.aol.com/10-best-led-face-masks-184700867.html

   The best LED face masks offer FDA-cleared technology to reduce wrinkles, clear acne, and more. ... Skin LED Light Therapy Mask Face and Neck Kit . currentbody.com. $647.00. Florence Sullivan. Red ...

6. 9 Best LED Light Masks to Help Achieve Glowing Skin At Home ...

   www.aol.com/9-best-led-light-masks-215900515.html

   Here are the best dermatologist-recommended LED light face masks. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us ...

7. Shadow mask - Wikipedia

   en.wikipedia.org/wiki/Shadow_mask

   A shadow mask is a metal plate punched with tiny holes that separate the colored phosphors in the layer behind the front glass of the screen. Shadow masks are made by photochemical machining, a technique that allows for the drilling of small holes on metal sheets. Three electron guns at the back of the screen sweep across the mask, with the ...

8. Want Ridiculously Good Skin? Let’s Talk About LED Masks - AOL

   www.aol.com/want-ridiculously-good-skin-let...

   LED face masks are good for acne, but they most likely won't clear up acne alone, which means you'll likely need to use your LED mask with a tried-and-true acne treatment, like an RX-strength ...

9. Anti-facial recognition mask - Wikipedia

   en.wikipedia.org/wiki/Anti-facial_recognition_mask

   Another type of anti-facial recognition mask involves the use of an asymmetrical face covering. Other designs make use of three dimensional faces to cover the wearer's face. Some masks are high tech; for instance, scientists at Fudan University in China are trying to create a mask which projects dots onto the wearer's face to confuse the ...