Arrays of recessed access devices, methods of forming recessed access gate constructions, and methods of forming isolation gate constructions in the fabrication of recessed access devices
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United States of America Patent
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Jul 5, 2016
Grant Date -
Feb 28, 2013
app pub date -
Aug 25, 2011
filing date -
Aug 25, 2011
priority date (Note) -
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Abstract
A method of forming an array of recessed access device gate constructions includes using the width of an anisotropically etched sidewall spacer in forming mask openings in an etch mask for forming all recessed access device trenches within semiconductor material within all of the array. The etch mask is used while etching all of the recessed access device trenches into the semiconductor material within all of the array through the mask openings. Individual recessed access gate constructions are formed in the individual recessed access device trenches. Other methods are contemplated, including arrays of recessed access devices independent of method of manufacture.
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