THREE-DIMENSIONAL MEMORY DEVICE WITH SELF-ALIGNED WORD LINE CONTACT VIA STRUCTURES AND METHOD OF MAKING THE SAME - Patent 4505845

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EP 4 505 845 A1

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(43)	Date of publication:
	12.02.2025 Bulletin 2025/07

(21)	Application number: 23898503.0

(22)	Date of filing: 16.10.2023

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International Patent Classification (IPC):

H10B 43/35^(2023.01)
H01L 21/768^(2006.01)

H10B 43/10^(2023.01)

(52)	Cooperative Patent Classification (CPC):
	H10B 43/27; H10B 43/50

(86)	International application number:
	PCT/US2023/035250

(87)	International publication number:
	WO 2024/118160 (06.06.2024 Gazette 2024/23)

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
	Designated Extension States:
	BA
	Designated Validation States:
	KH MA MD TN

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Priority:

28.11.2022 US 202263385083 P
28.11.2022 US 202263385089 P

(71)	Applicant: SanDisk Technologies LLC
	Addison, Texas 75001 (US)

(72)	Inventors:
	MATSUNO, Koichi Addison, Texas 75001 (US) FUNAYAMA, Kota Addison, Texas 75001 (US)

(74)	Representative: Murgitroyd & Company
	Murgitroyd House 165-169 Scotland Street Glasgow G5 8PL Glasgow G5 8PL (GB)

(54)	THREE-DIMENSIONAL MEMORY DEVICE WITH SELF-ALIGNED WORD LINE CONTACT VIA STRUCTURES AND METHOD OF MAKING THE SAME