摘要
LV/HV N-Well BCD[B]技术(1)能够实现低压5 V与高压100~700 V(或更高)兼容的BCD工艺。为了便于高低压MOS器件兼容集成,采用源区为硼磷双扩散形成沟道的具有漂移区的偏置栅结构的HV LDMOS器件。改变漂移区的长度,宽度,结深度以及掺杂浓度等可以得到不同的高电压。采用MOS芯片结构设计、工艺与制造技术,得到了芯片制程结构。
LV/HV N-Well BCD [B] method(1) can realize low voltage 5 V and high voltage 100~700 V(or higher) compatible BCD process. In order to facilitate the compatible integration of high and low voltage MOSFETs, a bias gate HV LDMOSFETs with drift region were fabricated by double diffusion of boron and phosphorus in the source region. Different high voltage can be obtained by changing the length, width, junction depth and doping concentration of the drift region. MOS chip structure design, process and manufacturing technology are adopted, and the chip process structure is obtained based on this technology.
引文
[1]潘桂忠.LV/HVP-WellBCD[B]技术(1)的芯片与制程剖面结构[J].集成电路应用, 2018, 35(06):41-45.
[2]潘桂忠.LV/HVP-WellBCD[B]芯片工艺技术(2)的制程剖面结构[J].集成电路应用, 2018(09):23-27.
[3]潘桂忠.N-Well BiCMOS[B]芯片与制程剖面结构[J].集成电路应用,2017,34(11):42-46.
[4]潘桂忠.CMOS芯片结构与制程技术分析[J].集成电路应用,2017,34(04):43-46.