中文摘要：

氮化镓（GaN）功率电子器件具有优异的电学特性，在高速、高温和大功率领域具有十分广阔的应用前景，满足下一代功率管理系统对高效节能、小型化和智能化的需求。P型栅和Cascode结构的常关型GaN器件已逐步实现产业化，但鉴于这两种器件结构本身存在的缺点，常关型GaNMOSFET器件方案备受关注。目前，GaN功率开关器件主要朝高频化发展，封装形式从直插型（T0）封装向贴片式（QFN）封装演变，为进一步消除寄生效应对器件高速开关特性造成的不良影响，驱动和功率器件集成的GaN功率集成电路（IC）技术被采用，单片集成的全GaN功率IC是未来的发展方向。

英文摘要：

Gallium nitride（GaN）-based power devices have bright market prospects in the field of high-speed,high- temperature and high-power applications owing to their superior electrical properties.P-gate and cascode structure are applied in industrial productions and high-performance normally-off MOSFET gets increasingly attention in the industry. Currently, high frequency power switching is main development trend of GaN power devices.Their packaging formats evolve from transistor outline（TO） package to quad flat no-lead（QFN） package and serious parasitic effects have adverse effect on the switching.GaN power intrgrated circuit （IC） technology, in which driver and power component are integrated together, can effectively eliminate the parasitic effects.Monolithic integrated full GaN power IC is the development direction in the future.