Step channel direct injection(SCDI)flash memory device which had been developed changes the hot carrier injection method by making a shallow step in the middle of channel .Therefore high speed for programming,hig...Step channel direct injection(SCDI)flash memory device which had been developed changes the hot carrier injection method by making a shallow step in the middle of channel .Therefore high speed for programming,high efficiency for injection,and lower working voltage are obtained.Simulation and analysis for the proposed SCDI structure device are done and an optimization scheme to improve the utmost performance of SCDI device is given...展开更多
Step channel direct injection(SCDI) flash memory device is successfully achieved by 1 2μm CMOS technology,moreover good performance is obtained.At the bias condition of V g=6V, V d=5V,the programming speed ...Step channel direct injection(SCDI) flash memory device is successfully achieved by 1 2μm CMOS technology,moreover good performance is obtained.At the bias condition of V g=6V, V d=5V,the programming speed of SCDI device is 42μs.Under the condition of V g=-8V, V s=8V,the erasing speed is 24ms.Compared with the same size of conventional flash memory device whose corresponding parameters are 500μs and 24ms,respectively,the performance of SCDI device is remarkably improved.During manufacturing of SCDI device,the key technologies are to make the shallow step with appropriate depth and angle,along with eliminating the etch damage during the process of Si 3N 4 spacer.展开更多
为实现互联网上异种异构的复杂信息资源有序化组织和互操作性服务与共享的目标,文章研究了语义服务的元计算问题,提出了本体元建模理论和方法.首先定义了本体UML承诺、提倡本体UML表达,给出了本体的元机制;论述了元建模中的“元”概念,...为实现互联网上异种异构的复杂信息资源有序化组织和互操作性服务与共享的目标,文章研究了语义服务的元计算问题,提出了本体元建模理论和方法.首先定义了本体UML承诺、提倡本体UML表达,给出了本体的元机制;论述了元建模中的“元”概念,给出了元层次停止准则、模型转换机制;然后提出了本体建模和 MOF元模型设施相融合的体系结构,给出了以用户为中心的复杂信息资源服务应用模式 SCDI,为本体元建模方法的体系化提供了基础.还介绍了作者在国际 ISO SC32标准MMFI for Ontology Registry研究中的应用成果.最后给出了 HL7领域本体与元模型设计的应用.本体元建模为语义服务计算的实现,提供了一条可行的路径.展开更多
文摘Step channel direct injection(SCDI)flash memory device which had been developed changes the hot carrier injection method by making a shallow step in the middle of channel .Therefore high speed for programming,high efficiency for injection,and lower working voltage are obtained.Simulation and analysis for the proposed SCDI structure device are done and an optimization scheme to improve the utmost performance of SCDI device is given...
文摘Step channel direct injection(SCDI) flash memory device is successfully achieved by 1 2μm CMOS technology,moreover good performance is obtained.At the bias condition of V g=6V, V d=5V,the programming speed of SCDI device is 42μs.Under the condition of V g=-8V, V s=8V,the erasing speed is 24ms.Compared with the same size of conventional flash memory device whose corresponding parameters are 500μs and 24ms,respectively,the performance of SCDI device is remarkably improved.During manufacturing of SCDI device,the key technologies are to make the shallow step with appropriate depth and angle,along with eliminating the etch damage during the process of Si 3N 4 spacer.
文摘为实现互联网上异种异构的复杂信息资源有序化组织和互操作性服务与共享的目标,文章研究了语义服务的元计算问题,提出了本体元建模理论和方法.首先定义了本体UML承诺、提倡本体UML表达,给出了本体的元机制;论述了元建模中的“元”概念,给出了元层次停止准则、模型转换机制;然后提出了本体建模和 MOF元模型设施相融合的体系结构,给出了以用户为中心的复杂信息资源服务应用模式 SCDI,为本体元建模方法的体系化提供了基础.还介绍了作者在国际 ISO SC32标准MMFI for Ontology Registry研究中的应用成果.最后给出了 HL7领域本体与元模型设计的应用.本体元建模为语义服务计算的实现,提供了一条可行的路径.
