公开(公告)号：US20060214219A1

公开(公告)日：2006-09-28

申请号：US11376518

申请日：2006-03-15

Applicant: Byung-yong Choi ,  Dong-gun Park ,  Yun-gi Kim ,  Choong-ho Lee ,  Young-mi Lee ,  Hye-jin Cho

Inventor： Byung-yong Choi ,  Dong-gun Park ,  Yun-gi Kim ,  Choong-ho Lee ,  Young-mi Lee ,  Hye-jin Cho

IPC: H01L29/788

CPC classification number: H01L27/11568 ,  H01L21/28273 ,  H01L21/28282 ,  H01L27/0207 ,  H01L27/115 ,  H01L27/11519 ,  H01L27/11521 ,  H01L29/7887 ,  H01L29/7923

Abstract: A non-volatile memory device for 2-bit operation and a method of fabricating the same are provided. The non-volatile memory device includes an active region and a gate extending in a word line direction on a semiconductor substrate, and crossing each other repeatedly; a charge storage layer disposed below the gate, and confined at a portion where the gate and the active region cross; a charge blocking layer formed on the charge storage layer; a tunnel dielectric layer formed below the charge storage layer; first and second source/drain regions formed in the active region exposed by the gate; and first and second bit lines crossing the word line direction. The active region may be formed in a first zigzag pattern and/or the gate may be formed in a second zigzag pattern in symmetry with the first zigzag pattern.

Abstract translation: 提供了一种用于2位操作的非易失性存储器件及其制造方法。 非易失性存储器件包括在半导体衬底上沿着字线方向延伸的有源区和栅极，并且重复地交叉; 电荷存储层，设置在所述栅极的下方，并限制在所述栅极和所述有源区域交叉的部分; 形成在电荷存储层上的电荷阻挡层; 形成在电荷存储层下面的隧道介电层; 在由栅极暴露的有源区中形成的第一和第二源/漏区; 以及与字线方向交叉的第一和第二位线。 有源区可以形成为第一之字形图案和/或栅极可以以与第一曲折图案对称的第二曲折图案形成。