목록 Hybrid multi-bit non-volatile memory device and method of operating the same Year of publication 2007 Inventor 박윤동,김원주,전상훈 Application No. KR1020050001141A Application date Registration No. KR100682913B1 Registration date Link https://patents.google.com/patent/KR100682913B1/en?oq=+10-0682913 425회 연결