Metal-assisted etch combined with regularizing etch

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United States of America Patent

PATENT NO 9911878
SERIAL NO

14917698

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Abstract

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In an aspect of the disclosure, a process for forming nanostructuring on a silicon-containing substrate is provided. The process comprises (a) performing metal-assisted chemical etching on the substrate, (b) performing a clean, including partial or total removal of the metal used to assist the chemical etch, and (c) performing an isotropic or substantially isotropic chemical etch subsequently to the metal-assisted chemical etch of step (a). In an alternative aspect of the disclosure, the process comprises (a) performing metal-assisted chemical etching on the substrate, (b) cleaning the substrate, including removal of some or all of the assisting metal, and (c) performing a chemical etch which results in regularized openings in the silicon substrate.

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Patent Owner(s)

Patent OwnerAddress
ADVANCED SILICON GROUP TECHNOLOGIES LLC173 BEDFORD ROAD LINCOLN MA 01773

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Black, Marcie R Salem, US 46 490
Forziati, Joanne Everett, US 10 26
Jura, Michael Santa Monica, US 14 35
Magliozzi, Lauren Denver, US 4 10
Miller, Jeff Brookline, US 91 2264
Murphy, Brian Revere, US 202 6619
Yim, Joanne San Francisco, US 11 24

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