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    • 1. 发明申请
    • SPACER ETCH MASK FOR SONOS MEMORY
    • 用于SONOS存储器的间隔蚀刻掩模
    • WO03001601A3
    • 2003-03-13
    • PCT/US0148825
    • 2001-12-14
    • ADVANCED MICRO DEVICES INC
    • RAMSBEY MARK TDERHACOBIAN NARBEHWANG JANETHUI ANGELAPHAM TUANSUNKAVALLI RAVIRANDOLPH MARK
    • H01L21/8246H01L27/105H01L27/115
    • H01L27/11568H01L27/105H01L27/11573
    • One aspect of the present invention relates to a method of forming spacers (56) in a SONOS type nonvolatile semiconductor memory device, involving providing a substrate (40) having a core region (42) and periphery region (44), the core region (42) containing SONOS type memory cells (48) and the periphery region (44) containing gate transistors (50); implanting a first implant into the core region (42) and a first implant into the perifery region (44) of the substrate (40); forming a spacer material (52) over the substrate (40); masking the core region (42) and forming spacers (56) adjacent the gate transistors (50) in the perifery region (44); and implanting a second implant into the perifery region (44) of the substrate (40).
    • 本发明的一个方面涉及一种在SONOS型非易失性半导体存储器件中形成间隔物(56)的方法,包括提供具有芯区(42)和周边区(44)的基底(40),芯区( 42),包含SONOS型存储单元(48)和包含栅极晶体管(50)的外围区域(44); 将第一植入物植入所述芯区域(42)中并将第一植入物植入所述基底(40)的所述外围区域(44)中; 在衬底(40)上形成间隔物(52); 掩蔽所述芯区域(42)并在所述外形区域(44)中形成与所述栅极晶体管(50)相邻的间隔物(56)。 以及将第二植入物植入到所述基底(40)的外围区域(44)中。