Nowadays, IC is "active" in people's sight with faster speed, smaller volume and larger capacity. Its complexity is far beyond people's imagination. So, is it difficult to develop IC? What is the flow of IC development?
What is IC development?
"IC development is also called" IC design, is how to design and develop integrated circuits, IC development requires interconnection line between electronic device, the device model is established on the basis of all the devices and interconnect to be resettled in a semiconductor substrate material, while the idea of these components will be through the semiconductor devices, such as lithography, Placed on a single silicon substrate to form the circuit. In short, IC development is the process of transforming the design requirements of system, logic and performance into concrete physical layout, that is, a product from the "abstract concept" step by step.
Of course, IC development is different from simple circuit design, IC needs computer assistance, that is, need to use design methodology and certain technical means, and even need some related research, including electronic design automation of hardware design, computer-aided design methodology.
Its research scope is covering the digital logic optimization, mesh sheet, register transfer and hardware description language code writing, validation, simulation and timing analysis of logic function, circuit in hardware connection, the distribution of analog integrated circuit operational amplifier, electronic filters and other components in the chip placement and mixed signal processing.
Second, what is the design process of IC development?
Generally speaking, the design process of IC development can be divided into logical design and physical design.
1. What is logical design?
The so-called "logical design" is to translate the actual needs of customers into a component for the actual circuit by coding, and use "gate level network" to express.
In detail, the logic design of IC development should first determine the main purpose of IC, so as to be able to better specification formulation, so as to come up with practical design solutions and implementation architecture, module function division. In addition, during the process of perfecting the details of IC development, HDL code should be converted into logic circuits to generate circuit diagrams.
2. What is physical design?
Physical design is the latter part of the design process, this design plate is mainly to complete the layout, wiring, as well as detection, testing. It is worth mentioning that in physical design, the macro unit module of the chip placed during layout planning will directly affect the final area of the chip.
Overall, IC development is not an easy task, but fortunately, benefiting from the national policy support, the domestic IC development industry has a good momentum of development in recent years, but also achieved a certain share in the international IC market.