发明名称 Methods of forming semiconductor constructions
摘要 Some embodiments include a semiconductor construction having a stack containing alternating levels of control gate material and intervening dielectric material. A channel material panel extends through the stack and along a first direction. The panel divides the stack into a first section on a first side of the panel and a second section on a second side of the panel. Memory cell stacks are between the channel material panel and the control gate material. The memory cell stacks include cell dielectric material shaped as containers having open ends pointing toward the channel material panel, and include charge-storage material within the containers. Some embodiments include methods of forming semiconductor constructions.
申请公布号 US9373636(B2) 申请公布日期 2016.06.21
申请号 US201514930504 申请日期 2015.11.02
申请人 Micron Technology, Inc. 发明人 Davis Neal L.;Kewley David A.
分类号 H01L21/336;H01L27/115 主分类号 H01L21/336
代理机构 Wells St. John P.S. 代理人 Wells St. John P.S.
主权项 1. A method of forming a semiconductor construction, comprising: forming a stack comprising alternating control gate material and intervening dielectric material; forming a plurality of first trenches within the stack and extending along a first direction; recessing the control gate material along interior walls of the first trenches to form a plurality of cavities along the interior walls, the cavities being bounded on top and bottom by the intervening dielectric material, and on one side by the control gate material; forming memory cell stacks within the cavities, the memory cell stacks comprising cell dielectric material shaped as containers and having open ends pointing away from the sides of the cavities bounded by the control gate material; the memory cell stacks also comprising charge-storage material within the containers; after forming the memory cell stacks, forming channel material panels within the first trenches; the channel material panels extending along the first direction of the first trenches; forming a plurality of second trenches within the stack and extending along the first direction; forming first dielectric material panels within the second trenches; forming form a plurality of third trenches within the stack and channel material panels, and extending along a second direction substantially orthogonal to the first direction; and forming a plurality of second dielectric material panels within the third trenches.
地址 Boise ID US