发明名称 METHOD FOR FORMING CONTACT IN FLASH MEMORY DEVICE
摘要 <p>A method for forming a contact in a flash memory device is provided to increase a process margin by reducing a chip size by forming a major axis of a drain contact in small size. A method for forming a contact in a flash memory device comprises the steps of: forming an interlayer dielectric on a semiconductor substrate on which the gate patterns for selective transistor and a memory cell; forming a first drain contact hole(360a) and a first source contact hole(370a) one by one for every two active regions; forming a second drain contact hole and a second source contact hole in the region at which the first drain and source contact holes are not formed; and forming a drain contact and a source contact by burying the first and second drain and source contact holes with a conductive material.</p>
申请公布号 KR20090095395(A) 申请公布日期 2009.09.09
申请号 KR20080020702 申请日期 2008.03.05
申请人 HYNIX SEMICONDUCTOR INC. 发明人 KIM, SEO MIN
分类号 H01L21/28;H01L21/8247;H01L27/115 主分类号 H01L21/28
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