SiC MOSFET因其耐高温、高压的优点,被广泛应用于大功率固态功率控制器的设计中。针对固态功率控制器工况,选用裸片封装的SiC MOSFET,对功率模块的堆叠结构进行设计及热阻分析;对键合结构的选型与布局进行设计;对封装连接铜线、铜带的...SiC MOSFET因其耐高温、高压的优点,被广泛应用于大功率固态功率控制器的设计中。针对固态功率控制器工况,选用裸片封装的SiC MOSFET,对功率模块的堆叠结构进行设计及热阻分析;对键合结构的选型与布局进行设计;对封装连接铜线、铜带的热影响进行分析。在封装设计基础上,通过有限元仿真对功率模块热性能进行评估。最后,搭建平台进行单路热测试。结果验证了仿真的准确性,以及封装设计的合理性。展开更多
The MOBILE is a logic element realizing the monostable-bistable transition of a circuit that consists of two resonant tunneling transistors—the resonant tunneling diodes (RTDs) connected in series. It has several adv...The MOBILE is a logic element realizing the monostable-bistable transition of a circuit that consists of two resonant tunneling transistors—the resonant tunneling diodes (RTDs) connected in series. It has several advantages including multiple inputs and multiple functions. In this paper, by connecting a heterojunction phototransistor (HPT) with the MOBILE, a novel optoelectronic functional device can be got, which presents the function of both photocurrent switching and photocurrent latching. These behaviors have been demonstrated for the first time by simulating experiments and circuit simulations, with RTDs firstly manufactured in China. Research indicates that the novel photo-controlled MOBILE has the same logic functions as conventional electrical MOBILE except for with light as an input signal.展开更多
在工艺研发的过程,常常需要分析工艺参数对于器件参数的影响,在器件模型提取的过程中也需要对器件参数做大量测量。这就需要精确、高效地测量器件参数。为此,本文设计了测量器件特性偏差用的DMA_TEG(Device Matrix Array Test Element G...在工艺研发的过程,常常需要分析工艺参数对于器件参数的影响,在器件模型提取的过程中也需要对器件参数做大量测量。这就需要精确、高效地测量器件参数。为此,本文设计了测量器件特性偏差用的DMA_TEG(Device Matrix Array Test Element Group)结构,目标是提高测量的效率。所使用的结构已在HLMC 40LP工艺上实现。本文主要介绍DMA_TEG的设计思路,以及如何利用DMA_TEG系统研究影响器件特性的因素。展开更多
功率器件是电力电子系统中的薄弱环节之一,其失效具有明显的多尺度特征,构建能够考虑功率器件多尺度特征的瞬态模型对器件状态监测与老化评估具有重要意义。以MOS场效晶体管(metal-oxide-semiconductor field effect transistor,MOSFET...功率器件是电力电子系统中的薄弱环节之一,其失效具有明显的多尺度特征,构建能够考虑功率器件多尺度特征的瞬态模型对器件状态监测与老化评估具有重要意义。以MOS场效晶体管(metal-oxide-semiconductor field effect transistor,MOSFET)为研究对象,构建了功率器件Simulink与COMSOL场路联合仿真模型,选取以导通电流和导通压降为模型交互信息,实现器件开关信息和宏观物理信息交互作用的器件瞬态特性分析。在此基础上,分析功率器件芯片处均温(壳温)、芯片上表面均温(结温)、导通压降、芯片电阻、焊料层最大位移。结果表明,所构建模型能够有效反映器件开关特性和宏观场间的交互,为器件数字孪生模型奠定基础。展开更多
文摘The MOBILE is a logic element realizing the monostable-bistable transition of a circuit that consists of two resonant tunneling transistors—the resonant tunneling diodes (RTDs) connected in series. It has several advantages including multiple inputs and multiple functions. In this paper, by connecting a heterojunction phototransistor (HPT) with the MOBILE, a novel optoelectronic functional device can be got, which presents the function of both photocurrent switching and photocurrent latching. These behaviors have been demonstrated for the first time by simulating experiments and circuit simulations, with RTDs firstly manufactured in China. Research indicates that the novel photo-controlled MOBILE has the same logic functions as conventional electrical MOBILE except for with light as an input signal.
文摘在工艺研发的过程,常常需要分析工艺参数对于器件参数的影响,在器件模型提取的过程中也需要对器件参数做大量测量。这就需要精确、高效地测量器件参数。为此,本文设计了测量器件特性偏差用的DMA_TEG(Device Matrix Array Test Element Group)结构,目标是提高测量的效率。所使用的结构已在HLMC 40LP工艺上实现。本文主要介绍DMA_TEG的设计思路,以及如何利用DMA_TEG系统研究影响器件特性的因素。
文摘功率器件是电力电子系统中的薄弱环节之一,其失效具有明显的多尺度特征,构建能够考虑功率器件多尺度特征的瞬态模型对器件状态监测与老化评估具有重要意义。以MOS场效晶体管(metal-oxide-semiconductor field effect transistor,MOSFET)为研究对象,构建了功率器件Simulink与COMSOL场路联合仿真模型,选取以导通电流和导通压降为模型交互信息,实现器件开关信息和宏观物理信息交互作用的器件瞬态特性分析。在此基础上,分析功率器件芯片处均温(壳温)、芯片上表面均温(结温)、导通压降、芯片电阻、焊料层最大位移。结果表明,所构建模型能够有效反映器件开关特性和宏观场间的交互,为器件数字孪生模型奠定基础。
