会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 14. 发明授权
    • Nonvolatile semiconductor memory device and method of producing the same
    • 非易失性半导体存储器件及其制造方法
    • US06903977B2
    • 2005-06-07
    • US10432158
    • 2002-09-25
    • Ichiro FujiwaraHiromi Nobukata
    • Ichiro FujiwaraHiromi Nobukata
    • G11C16/04H01L21/8246H01L27/105H01L29/423H01L29/792G11C16/00
    • H01L27/11568G11C16/0466G11C16/0491H01L27/105H01L27/115H01L27/11573H01L29/42332H01L29/792
    • A nonvolatile semiconductor memory apparatus suitable to logic incorporation, by which a charge injection efficiency is high and hot electrons (HE) can be effectively injected at a low voltage is provided. A memory transistor (M) comprises first and second source/drain regions (S, SSL, D, SBL) formed on a semiconductor substrate (SUB, W), a charge storage film (GD) having a charge storage faculty and a gate electrode (WL). Memory peripheral circuits (2a to 9) generate a first voltage (Vd) and a second voltage (Vg-Vwell), apply the first voltage (Vd) to the second source/drain region (D, SBL) by using potential (0V) of the first source/drain region (S, SSL) as reference, apply the second voltage (Vg-Vwell) to the gate electrode (WL), generate hot electrons (HE) by ionization collision on the second source/drain region (D, SBL) side, and inject the hot electrons (HE) to the charge storage film (GD) from the second source/drain region (D, SBL) side at the time of writing data.
    • 提供了适用于电荷注入效率高的逻辑结合的非易失性半导体存储器件,并且可以以低电压有效地注入热电子(HE)。 存储晶体管(M)包括形成在半导体衬底(SUB,W)上的第一和第二源/漏区(S,SSL,D,SBL),具有电荷存储层的电荷存储膜(GD) (WL)。 存储器外围电路(2 a至9)产生第一电压(Vd)和第二电压(Vg-Vwell),通过使用电位(0V)将第一电压(Vd)施加到第二源/漏区(D,SBL) )作为参考,将第二电压(Vg-Vwell)施加到栅电极(WL),通过在第二源极/漏极区域上的电离碰撞产生热电子(HE) D,SBL)侧,并且在写入数据时从第二源/漏区(D,SBL)侧将热电子(HE)注入到电荷存储膜(GD)。
    • 18. 发明授权
    • Nonvolatile memory device
    • 非易失性存储器件
    • US07521751B2
    • 2009-04-21
    • US11229409
    • 2005-09-16
    • Ichiro Fujiwara
    • Ichiro Fujiwara
    • H01L27/105
    • H01L29/66833H01L21/28282H01L27/115H01L29/792
    • To provide a nonvolatile memory device suppressing a reduction of a data retention characteristic even if charges injected and stored into a local area of a nitride film is redistributed to achieve a reduction of voltage, the nonvolatile memory device in which hot electrons are injected into the local area of the nitride film at one or both of source•drain regions side to store data in a memory transistor is satisfied with a standard for evaluating a film quality of the nitride film, the standard being defined by one of the followings: a density of the bond group of silicon and hydrogen being under 1×1021 cm−3; an extinction coefficient in an ultraviolet region at a wavelength of 240 nm being under 0.10 or the extinction coefficient in 230 nm being under 0.14; an optical energy, a peak wavelength of an luminance spectrum, or a peak energy thereof.
    • 即使注入并存储在氮化膜的局部区域中的电荷被重新分配以实现电压的降低,也提供一种抑制数据保持特性降低的非易失性存储器件,其中将热电子注入本地的非易失性存储器件 在源极区域侧的一个或两个处的氮化物膜的面积被存储在存储晶体管中以将数据存储在存储晶体管中满足用于评估氮化物膜的膜质量的标准,该标准由以下之一定义: 硅和氢的键合基团在1×10 21 cm -3以下; 波长240nm的紫外线区域的消光系数在0.10以下,230nm的消光系数在0.14以下; 光能,亮度谱的峰值波长或其峰值能量。
    • 19. 发明授权
    • Non-volatile semiconductor memory device and method for producing same
    • 非易失性半导体存储器件及其制造方法
    • US07259433B2
    • 2007-08-21
    • US11131865
    • 2005-05-18
    • Kazumasa NomotoHiroshi AozasaIchiro FujiwaraShinji Tanaka
    • Kazumasa NomotoHiroshi AozasaIchiro FujiwaraShinji Tanaka
    • H01L29/72
    • H01L29/792H01L21/28282H01L21/7624
    • The memory device has a plurality of dielectric films including charge storage layers CS having a charge holding capability therein and stacked on an active region of a semiconductor SUB and electrodes G on the plurality of dielectric films. Each charge storage layer CS includes a first nitride film CS1 made of silicon nitride or silicon oxynitride and a second nitride film CS2 made of silicon nitride or silicon oxynitride and having a higher charge trap density than the first nitride film CS1. The first nitride film CS1 is formed by chemical vapor deposition using a first gas which contains a first silicon-containing gas containing chlorine with a predetermined percent composition and a nitrogen-containing gas as starting materials. The second nitride film CS2 is formed by chemical vapor deposition using a second gas which contains a second silicon-containing gas having a lower chlorine percent composition than the above predetermined percent composition and a nitrogen-containing gas as starting materials.
    • 存储器件具有多个电介质膜,其包括其中具有电荷保持能力的电荷存储层CS,并且堆叠在半导体SUB的有源区和多个介电膜上的电极G. 每个电荷存储层CS包括由氮化硅或氮氧化硅制成的第一氮化物膜CS 1和由氮化硅或氮氧化硅制成并且具有比第一氮化物膜CS 1更高的电荷陷阱密度的第二氮化物膜CS 2。 第一氮化物膜CS1通过化学气相沉积形成,该第一气体含有含有预定百分比组成的含氯的第一含硅气体和含氮气体作为原料。 第二氮化物膜CS2通过使用包含比上述预定百分比组成低的氯百分含量的第二含硅气体和含氮气体作为原料的第二气体进行化学气相沉积而形成。