Title : 
Improved Electrical Characteristics and Retention Time of DRAMs Using HSG-merged-AHO Cylinder Capacitor
         
        
            Author : 
Kim, S.G. ; Hyun, C.S. ; Park, D. ; Kim, S.J. ; Cho, T.H. ; Kang, H.J. ; Lee, S.-H. ; Suk, J.G. ; Lim, B.K. ; Jeon, Y.S. ; Hwang, K.H. ; Hong, H.S. ; Jeon, S.G. ; Lee, K.Y. ; Oh, K.S. ; Park, D.G.
         
        
            Author_Institution : 
Device Res. Team, Samsung Electron. Co., Yongin
         
        
        
        
        
        
            Abstract : 
Fully integrated 512Mb DRAMs using HSG-merged-AHO cylinder capacitor were successfully developed for the first time. Improved electrical characteristics and retention time of HSG-merged-AHO capacitor DRAM was achieved without any capacitor-related leakage current failure in 110nm technology. This technology is expected to be extended to sub-100nm technology
         
        
            Keywords : 
DRAM chips; aluminium compounds; capacitors; electric properties; hafnium compounds; 512 Mbit; Al2O3-HfO2; DRAM; HSG-merged-AHO cylinder capacitor; electrical characteristics; retention time; Aluminum oxide; Capacitance; Capacitors; Electric variables; Electrodes; Leakage current; Random access memory; Scanning electron microscopy; Silicon; Tin;
         
        
        
        
            Conference_Titel : 
Semiconductor Device Research Symposium, 2005 International
         
        
            Conference_Location : 
Bethesda, MD
         
        
            Print_ISBN : 
1-4244-0083-X
         
        
        
            DOI : 
10.1109/ISDRS.2005.1596004