US 12,080,345 B2
Memory device including a plurality of stacked memory cells
Dong Keun Kim, Icheon-si (KR)
Assigned to SK hynix Inc., Icheon-si (KR)
Filed by SK hynix Inc., Icheon-si (KR)
Filed on Aug. 13, 2021, as Appl. No. 17/402,291.
Application 17/402,291 is a continuation in part of application No. 17/087,080, filed on Nov. 2, 2020, granted, now 11,094,378.
Application 17/087,080 is a continuation of application No. 16/582,861, filed on Sep. 25, 2019, granted, now 10,825,515, issued on Nov. 3, 2020.
Claims priority of application No. 10-2021-0083984 (KR), filed on Jun. 28, 2021.
Prior Publication US 2021/0375359 A1, Dec. 2, 2021
Int. Cl. G11C 13/00 (2006.01); G11C 11/16 (2006.01); H10B 63/00 (2023.01); H10N 50/85 (2023.01); H10N 70/00 (2023.01); H10N 70/20 (2023.01)
CPC G11C 13/0004 (2013.01) [G11C 11/161 (2013.01); G11C 13/0007 (2013.01); G11C 13/0026 (2013.01); G11C 13/0028 (2013.01); G11C 13/003 (2013.01); G11C 2213/71 (2013.01); G11C 2213/72 (2013.01); G11C 2213/79 (2013.01); H10B 63/24 (2023.02); H10N 50/85 (2023.02); H10N 70/231 (2023.02); H10N 70/826 (2023.02); H10N 70/8413 (2023.02); H10N 70/8828 (2023.02)] 19 Claims
OG exemplary drawing
 
1. A memory device comprising:
a bank layer arranged on a semiconductor substrate, the bank layer including a plurality of mats, each of the mats including a plurality of stacked decks, and each of the decks including a plurality of memory cells; and
a control circuit layer arranged between the semiconductor substrate and the bank layer, the control circuit layer including a plurality of control circuit regions corresponding to the mats,
wherein the plurality of the stacked decks comprises a plurality of stacked word lines, a plurality of stacked bit lines intersected with the stacked word lines, and
wherein a word line decoder for controlling the stacked word lines and a bit line decoder for controlling the stacked bit lines are respectively located in the control circuit regions and the word line decoder and bit line decoder are alternately arranged in the control circuit layer along a word line extension direction and a bit line extension direction,
wherein the stacked word lines are divided by a length between a pair of the adjacent word line decoders in a row direction parallel with the word line extension direction to form a plurality of word line stack structures, and
wherein the stacked bit lines are divided by a length between a pair of the adjacent bit line decoders in a column direction parallel with the bit line extension direction to form a plurality of bit line stack structures.