一种新型国产EDA软件的验证与应用

发布时间：2018-03-14 14:44

本文选题：EDA　切入点：存储器　出处：《电子科技大学》2012年硕士论文　论文类型：学位论文

【摘要】：EDA软件是现代集成电路开发的必备工具,并且大规模运用在设计过程中,而我国由于起步较晚,目前在先进的开发工具上完全使用外国软件,但是由于国外软件的价格高昂,大大增加了我国集成电路设计企业的开发成本,严重阻碍整个IC设计产业的发展。因此急需一种先进的具有自主知识产权的低价软件供设计者使用。从芯片上来看,由于一次性可编程存储器价格较低,开发周期较长,因此国内很少有IC设计公司愿意投入资金研发,从而导致了我国该型芯片完全依赖进口,加上国外公司垄断供货渠道,从而大大限制了我国半导体存储器产业的发展,所以,进行这方面的研究将有助于填补我国集成电路领域的空白。本文的目的是使用国产EDA软件设计出8bit的一次性可编程存储器芯片。文中首先介绍了EDA软件和存储器的发展,详细地介绍了华大九天EDA软件系统；然后从存储器电路结构框架出发,使用九天EDA软件设计了该存储器的各个模块电路,包括：译码电路、存储阵列电路、写入电路、读出电路、灵敏放大器电路,并完成每个模块和整个电路的仿真,并通过与Cadence软件对比,验证九天EDA软件的仿真精度；最后通过华大九天的全定制IC设计平台完成该芯片的从电路到版图的物理实现过程,并完成了版图的物理验证,最后成功交付代工厂流片。
[Abstract]:EDA software is a necessary tool for the development of modern integrated circuits, and it is widely used in the design process. However, due to the late start in China, foreign software is used completely in advanced development tools at present, but the price of foreign software is very high. It greatly increases the development cost of the integrated circuit design enterprises in China, and seriously hinders the development of the whole IC design industry. Therefore, an advanced low-cost software with independent intellectual property rights is urgently needed for designers to use. From the chip point of view, because of the low price of the one-time programmable memory and the long development period, few IC design companies in China are willing to invest in R & D, which leads to the complete dependence on imports of the chip in China. In addition, foreign companies monopolize the supply channels, which greatly limits the development of semiconductor memory industry in China. Therefore, the research in this field will be helpful to fill the gaps in the field of integrated circuits in China. The purpose of this paper is to design a one-off programmable memory chip with 8bit by using domestic EDA software. Firstly, the development of EDA software and memory is introduced, and the nine-day EDA software system of Huada is introduced in detail. Then, starting from the structure of the memory circuit, the author designs each module circuit of the memory by using the nine-day EDA software, including: decoding circuit, memory array circuit, writing circuit, readout circuit, sensitive amplifier circuit. The simulation of each module and the whole circuit is completed, and the simulation accuracy of the nine-day EDA software is verified by comparing with the Cadence software. Finally, the physical realization process from the circuit to the layout of the chip is completed by the nine-day fully customized IC design platform of Huadu University. And completed the physical verification of the layout, and finally delivered successfully to the factory stream.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP311.52;TP333

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