A sub circuit model for VDMOS is built according to its physical structure.Parameters and formulas describing the device are also derived from this model.Comparing to former results,this model avoids too many technic...A sub circuit model for VDMOS is built according to its physical structure.Parameters and formulas describing the device are also derived from this model.Comparing to former results,this model avoids too many technical parameters and simplify the sub circuit efficiently.As a result of numeric computation,this simple model with clear physical conception demonstrates excellent agreements between measured and modeled response (DC error within 5%,AC error within 10%).Such a model is now available for circuit simulation and parameter extraction.展开更多
衬底寄生网络建模和参数提取,对RF SOI MOSFET器件输出特性的模拟有着非常重要的影响。考虑BOX层引入的体区和Si衬底隔离,将源、体和衬底短接接地,测试栅、漏二端口S参数的传统测试结构,无法准确区分衬底网络影响。提出一种改进的测试结...衬底寄生网络建模和参数提取,对RF SOI MOSFET器件输出特性的模拟有着非常重要的影响。考虑BOX层引入的体区和Si衬底隔离,将源、体和衬底短接接地,测试栅、漏二端口S参数的传统测试结构,无法准确区分衬底网络影响。提出一种改进的测试结构,通过把SOI MOSFET的漏和源短接为信号输出端、栅为信号输入端,测试栅、漏/源短接二端口S参数的方法,把衬底寄生在二端口S参数中直接体现出来,并开发出一种解析提取衬底网络模型参数的方法,支持SOI MOSFET衬底网络模型的精确建立。采用该方法对一组不同栅指数目的SOI MOSFET进行建模,测量和模型仿真所得S参数在20 GHz频段范围内得到很好吻合。展开更多
文摘A sub circuit model for VDMOS is built according to its physical structure.Parameters and formulas describing the device are also derived from this model.Comparing to former results,this model avoids too many technical parameters and simplify the sub circuit efficiently.As a result of numeric computation,this simple model with clear physical conception demonstrates excellent agreements between measured and modeled response (DC error within 5%,AC error within 10%).Such a model is now available for circuit simulation and parameter extraction.
