US 11,914,086 B2
Radiation detection device, semiconductor memory device and radiation detection method
Tomoya Sanuki, Yokkaichi Mie (JP)
Assigned to Kioxia Corporation, Tokyo (JP)
Filed by KIOXIA CORPORATION, Tokyo (JP)
Filed on Feb. 7, 2022, as Appl. No. 17/666,463.
Claims priority of application No. 2021-141204 (JP), filed on Aug. 31, 2021.
Prior Publication US 2023/0060583 A1, Mar. 2, 2023
Int. Cl. G01T 1/24 (2006.01); G01T 7/00 (2006.01); G01T 1/02 (2006.01); G01T 1/16 (2006.01); H10B 80/00 (2023.01)
CPC G01T 1/244 (2013.01) [G01T 1/026 (2013.01); G01T 1/1606 (2013.01); G01T 1/242 (2013.01); G01T 1/245 (2013.01); G01T 1/247 (2013.01); G01T 7/00 (2013.01); H10B 80/00 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A radiation detection device comprising:
a first memory module mounted on a first substrate electrically connected to a first connection interface, the first memory module including a plurality of first memory chips that are vertically stacked on top of one another and mounted on the first substrate, each of the first memory chips including a plurality of vertically-stacked and non-volatile first memory cells;
a second memory module mounted on a second substrate that is above the first memory module and electrically connected to a second connection interface, the second memory module including a plurality of second memory chips that are vertically stacked on top of one another and mounted on the second substrate, each of the second memory chips including a plurality of vertically-stacked and non-volatile second memory cells; and
a controller electrically connected to the first and second connection interfaces and configured to detect gamma rays according to a data inversion or a threshold voltage change of at least some of the non-volatile memory cells in the first and second memory modules.