US 12,225,835 B2
Resistive switching device having a protective electrode ring
Takashi Ando, Eastchester, NY (US); Ruilong Xie, Niskayuna, NY (US); Alexander Reznicek, Troy, NY (US); and Pouya Hashemi, Purchase, NY (US)
Assigned to International Business Machines Corporation, Armonk, NY (US)
Filed by International Business Machines Corporation, Armonk, NY (US)
Filed on Sep. 24, 2021, as Appl. No. 17/483,868.
Prior Publication US 2023/0109660 A1, Apr. 6, 2023
Int. Cl. H10N 70/00 (2023.01); H10B 63/00 (2023.01)
CPC H10N 70/841 (2023.02) [H10N 70/063 (2023.02); H10B 63/80 (2023.02); H10N 70/826 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A structure comprising:
a resistive switching device (RSD) comprising:
a first terminal having an outer sidewall surface;
a second terminal;
an active region having a switchable conduction state;
an undercut region at least partially defined by the outer sidewall surface and a portion of a top surface of the active region; and
a first protective layer within the undercut region.