发明名称 Non-volatile flash memory device having at least two different channel concentrations and method of fabricating the same
摘要 In a non-volatile flash memory device, and a method of fabricating the same, the device includes a semiconductor substrate, a source region and a drain region disposed in the semiconductor substrate to be spaced apart from each other, a tunneling layer pattern, a charge trap layer pattern and a shielding layer pattern, which are sequentially stacked on the semiconductor substrate between the source region and the drain region, adjacent to the source region, a first channel region disposed in the semiconductor substrate below the tunneling layer pattern, a gate insulating layer disposed on the semiconductor substrate between the drain region and the first channel region, a second channel region disposed in the semiconductor substrate below the gate insulating layer, a concentration of the second channel region being different from that of the first channel region, and a gate electrode covering the shielding layer pattern and the gate insulating layer.
申请公布号 US7320920(B2) 申请公布日期 2008.01.22
申请号 US20050097281 申请日期 2005.04.04
申请人 SAMSUNG ELECTRONICS CO., LTD. 发明人 KIM SANG-SU;KANG SUNG-TAEG;CHO IN-WOOK;YANG JEONG-HWAN
分类号 H01L21/334;H01L27/115;H01L21/28;H01L21/336 主分类号 H01L21/334
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