Multi-stack three-dimensional memory devices

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United States of America

PATENT NO 10600781
SERIAL NO

16194263

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Abstract

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Embodiments of three-dimensional (3D) memory devices having multiple memory stacks and methods for forming the 3D memory devices are disclosed. In an example, a 3D memory device includes a first device chip, a second device chip, and a bonding interface. The first device chip includes a peripheral device and a first interconnect layer. The second device chip includes a substrate, two memory stacks disposed on opposite sides of the substrate, two memory strings each extending vertically through one of the two memory stacks, and a second interconnect layer. The bonding interface is formed vertically between the first interconnect layer of the first device chip and the second interconnect layer of the second device chip.

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Patent Owner(s)

  • YANGTZE MEMORY TECHNOLOGIES CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hu, Bin Wuhan, CN 247 1040
Xiao, Li Hong Wuhan, CN 89 360

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