公开(公告)号：US10263007B2

公开(公告)日：2019-04-16

申请号：US16002129

申请日：2018-06-07

Applicant: Micron Technology, Inc.

Inventor： Justin B. Dorhout ,  Kunal R. Parekh ,  Matthew Park ,  Joseph Neil Greeley ,  Chet E. Carter ,  Martin C. Roberts ,  Indra V. Chary ,  Vinayak Shamanna ,  Ryan Meyer ,  Paolo Tessariol

IPC: H01L21/336 ,  H01L27/11556 ,  H01L27/11519 ,  H01L27/11565 ,  H01L27/11582 ,  H01L27/11573

Abstract: An array of elevationally-extending strings of memory cells, where the memory cells individually comprise a programmable charge storage transistor, comprises a substrate comprising a first region containing memory cells and a second region not containing memory cells laterally of the first region. The first region comprises vertically-alternating tiers of insulative material and control gate material. The second region comprises vertically-alternating tiers of different composition insulating materials laterally of the first region. A channel pillar comprising semiconductive channel material extends elevationally through multiple of the vertically-alternating tiers within the first region. Tunnel insulator, programmable charge storage material, and control gate blocking insulator are between the channel pillar and the control gate material of individual of the tiers of the control gate material within the first region. Conductive vias extend elevationally through the vertically-alternating tiers in the second region. An elevationally-extending wall is laterally between the first and second regions. The wall comprises the programmable charge storage material and the semiconductive channel material. Other embodiments and aspects, including method, are disclosed.

公开(公告)号：US10096483B2

公开(公告)日：2018-10-09

申请号：US15681066

申请日：2017-08-18

Applicant: Micron Technology, Inc.

Inventor： Baosuo Zhou ,  Mirzafer K. Abatchev ,  Ardavan Niroomand ,  Paul A. Morgan ,  Shuang Meng ,  Joseph Neil Greeley ,  Brian J. Coppa

IPC: H01L21/306 ,  H01L21/033 ,  H01L21/308 ,  H01L23/00

Abstract: A method for patterning a layer increases the density of features formed over an initial patterning layer using a series of self-aligned spacers. A layer to be etched is provided, then an initial sacrificial patterning layer, for example formed using optical lithography, is formed over the layer to be etched. Depending on the embodiment, the patterning layer may be trimmed, then a series of spacer layers formed and etched. The number of spacer layers and their target dimensions depends on the desired increase in feature density. An in-process semiconductor device and electronic system is also described.

公开(公告)号：US20180047739A1

公开(公告)日：2018-02-15

申请号：US15231950

申请日：2016-08-09

Applicant: Micron Technology, Inc.

Inventor： Justin B. Dorhout ,  Kunal R. Parekh ,  Matthew Park ,  Joseph Neil Greeley ,  Chet E. Carter ,  Martin C. Roberts ,  Indra V. Chary ,  Vinayak Shamanna ,  Ryan Meyer ,  Paolo Tessariol

IPC: H01L27/115

CPC classification number: H01L27/11556 ,  H01L27/11519 ,  H01L27/11565 ,  H01L27/11573 ,  H01L27/11582

Abstract: An array of elevationally-extending strings of memory cells, where the memory cells individually comprise a programmable charge storage transistor, comprises a substrate comprising a first region containing memory cells and a second region not containing memory cells laterally of the first region. The first region comprises vertically-alternating tiers of insulative material and control gate material. The second region comprises vertically-alternating tiers of different composition insulating materials laterally of the first region. A channel pillar comprising semiconductive channel material extends elevationally through multiple of the vertically-alternating tiers within the first region. Tunnel insulator, programmable charge storage material, and control gate blocking insulator are between the channel pillar and the control gate material of individual of the tiers of the control gate material within the first region. Conductive vias extend elevationally through the vertically-alternating tiers in the second region. An elevationally-extending wall is laterally between the first and second regions. The wall comprises the programmable charge storage material and the semiconductive channel material. Other embodiments and aspects, including method, are disclosed.

公开(公告)号：US09761457B2

公开(公告)日：2017-09-12

申请号：US15076474

申请日：2016-03-21

Applicant: Micron Technology, Inc.

Inventor： Baosuo Zhou ,  Mirzafer K. Abatchev ,  Ardavan Niroomand ,  Paul A. Morgan ,  Shuang Meng ,  Joseph Neil Greeley ,  Brian J. Coppa

IPC: H01L21/306 ,  H01L21/033 ,  H01L21/308 ,  H01L23/00

CPC classification number: H01L21/30625 ,  H01L21/0335 ,  H01L21/0337 ,  H01L21/0338 ,  H01L21/30604 ,  H01L21/3086 ,  H01L21/3088 ,  H01L23/564 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A method for patterning a layer increases the density of features formed over an initial patterning layer using a series of self-aligned spacers. A layer to be etched is provided, then an initial sacrificial patterning layer, for example formed using optical lithography, is formed over the layer to be etched. Depending on the embodiment, the patterning layer may be trimmed, then a series of spacer layers formed and etched. The number of spacer layers and their target dimensions depends on the desired increase in feature density. An in-process semiconductor device and electronic system is also described.

公开(公告)号：US20160260899A1

公开(公告)日：2016-09-08

申请号：US15156105

申请日：2016-05-16

Applicant: Micron Technology, Inc.

Inventor： Nishant Sinha ,  John Smythe ,  Bhaskar Srinivasan ,  Gurtej S. Sandhu ,  Joseph Neil Greeley ,  Kunal R. Parekh

IPC: H01L45/00 ,  H01L27/24

CPC classification number: H01L45/1683 ,  H01L27/2472 ,  H01L45/04 ,  H01L45/085 ,  H01L45/1233 ,  H01L45/1266 ,  H01L45/146 ,  H01L45/147 ,  H01L45/16

Abstract: A method of forming a non-volatile resistive oxide memory cell includes forming a first conductive electrode of the memory cell as part of a substrate. Metal oxide-comprising material is formed over the first conductive electrode. Etch stop material is deposited over the metal oxide-comprising material. Conductive material is deposited over the etch stop material. A second conductive electrode of the memory cell which comprises the conductive material received is formed over the etch stop material. Such includes etching through the conductive material to stop relative to the etch stop material and forming the non-volatile resistive oxide memory cell to comprise the first and second conductive electrodes having both the metal oxide-comprising material and the etch stop material therebetween. Other implementations are contemplated.

Abstract translation: 形成非易失性电阻氧化物存储单元的方法包括：形成存储单元的第一导电电极作为衬底的一部分。 含金属氧化物的材料形成在第一导电电极上。 蚀刻停止材料沉积在包含金属氧化物的材料上。 导电材料沉积在蚀刻停止材料上。 包含所接收的导电材料的存储单元的第二导电电极形成在蚀刻停止材料上。 这样包括通过导电材料蚀刻以相对于蚀刻停止材料停止并且形成非易失性电阻氧化物存储单元，以包括具有包含金属氧化物的材料和其间的蚀刻停止材料的第一和第二导电电极。 考虑其他实现。

公开(公告)号：US20160013263A1

公开(公告)日：2016-01-14

申请号：US14861831

申请日：2015-09-22

Applicant: Micron Technology, Inc.

Inventor： Joseph Neil Greeley ,  Prashant Raghu ,  Niraj B. Rana

IPC: H01L49/02 ,  H01L27/108 ,  H01L21/3213

CPC classification number: H01L28/92 ,  H01L21/32133 ,  H01L27/108 ,  H01L27/10852 ,  H01L27/10861 ,  H01L28/90

Abstract: A method of forming capacitors includes forming support material over a substrate. A first capacitor electrode is formed within individual openings in the support material. A first etching is conducted only partially into the support material using a liquid etching fluid to expose an elevationally outer portion of sidewalls of individual of the first capacitor electrodes. A second etching is conducted into the support material using a dry etching fluid to expose an elevationally inner portion of the sidewalls of the individual first capacitor electrodes. A capacitor dielectric is formed over the outer and inner portions of the sidewalls of the first capacitor electrodes. A second capacitor electrode is formed over the capacitor dielectric.