为了减小芯片生产过程对集成电路的影响,使生产芯片参数符合设计要求,分析现有修调技术特点,提出了一种基于标准工艺的金属熔丝修调电路,并成功应用到一个开关电源芯片中。其结构简单,成本低,可在标准工艺线上实现;在节约电路版图面积的同时,减小了电路的功耗。基于TSMC 0.5μm BCD工艺,通过Hspice仿真工具验证了电路功能的正确性,并完成电路版图设计,满足修调要求。 In order to reduce the impact of the chip production process on the integrated circuit, the production chip parameters meet the design requirements, analysis of the characteristics of the existing trimming technology, proposed a metal fuse trimming circuit based on standard technology, and successfully applied to a switching power supply Chip. The utility model has the advantages of simple structure and low cost, and can be realized on the standard process line; and the circuit power consumption is reduced while the area of ​​the circuit layout is saved. Based on the TSMC 0.5μm BCD process, the correctness of the circuit functions is verified by the Hspice simulation tool, and the circuit layout design is completed to meet the requirements of trimming and adjustment.