发明申请
US20090130834A1 METHODS OF FORMING IMPURITY CONTAINING INSULATING FILMS AND FLASH MEMORY DEVICES INCLUDING THE SAME
失效
形成包含绝缘膜的绝缘体的方法和包括其的闪存存储器件
- 专利标题: METHODS OF FORMING IMPURITY CONTAINING INSULATING FILMS AND FLASH MEMORY DEVICES INCLUDING THE SAME
- 专利标题(中): 形成包含绝缘膜的绝缘体的方法和包括其的闪存存储器件
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申请号: US12188482申请日: 2008-08-08
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公开(公告)号: US20090130834A1公开(公告)日: 2009-05-21
- 发明人: Young-Jin Noh , Bon-Young Koo , Si-Young Choi , Ki-Hyun Hwang , Chul-Sung Kim , Sung-Kweon Baek , Jin-Hwa Heo
- 申请人: Young-Jin Noh , Bon-Young Koo , Si-Young Choi , Ki-Hyun Hwang , Chul-Sung Kim , Sung-Kweon Baek , Jin-Hwa Heo
- 优先权: KR2007-80273 20070809
- 主分类号: H01L21/4763
- IPC分类号: H01L21/4763 ; H01L21/469
摘要:
Methods of forming an insulating film include forming an insulating film on a substrate. A first impurity is injected into the insulating film using a thermal process under a first set of processing conditions to form a first impurity concentration peak in a lower portion of the insulating film. A second impurity is injected into the insulating film using the thermal process under a second set of processing conditions, different from the first set of processing conditions, to form a second impurity concentration peak in an upper portion of the insulating film. Injecting the first impurity and injecting the second impurity may be carried out without using plasma and the first impurity concentration peak may be higher than the second impurity concentration peak.
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