US 11,955,416 B2
Semiconductor structure and method for manufacturing the same
Cheng-Hsien Lu, Taoyuan (TW); Yun-Yuan Wang, Kaohsiung (TW); and Dai-Ying Lee, Hsinchu County (TW)
Assigned to MACRONIX INTERNATIONAL CO., LTD., Hsinchu (TW)
Filed by MACRONIX INTERNATIONAL CO., LTD., Hsinchu (TW)
Filed on Sep. 15, 2021, as Appl. No. 17/475,439.
Prior Publication US 2023/0079160 A1, Mar. 16, 2023
Int. Cl. H01L 23/498 (2006.01); H01L 21/48 (2006.01)
CPC H01L 23/49827 (2013.01) [H01L 21/486 (2013.01); H01L 23/49866 (2013.01); H01L 23/49877 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method for manufacturing a semiconductor structure, comprising:
forming a via through a substrate from a top surface to a bottom surface of the substrate;
forming a liner layer on a sidewall of the via;
forming a barrier layer on the liner layer using a conductive 2D material; and
forming a conductor in a remaining space of the via;
wherein after forming the conductor, the method further comprises:
patterning the barrier layer and the conductor;
conducting a backside grinding process to expose the via from a backside of the substrate;
sequentially forming a second liner layer, a second barrier layer, and a second conductor on the bottom surface of the substrate; and
patterning the second barrier layer and the second conductor.