abstract: This work presents a method with an evolutionary approach to some of the tasks of integrated-circuit (IC) design. The first part consists of a short description of some essential characteristics of IC design. The discovery of the semiconducting properties of some materials and the production of transistors opened the door for digital technology. This technology allows for very high densities of transistor integration. The majority of today's ICs are built using CMOS technology, which results in low power losses and reduced noise while ensuring very symmetrical characteristics. This study is focused on application-specific integrated circuits (ASICs) that need an even more sophisticated design due to their specific use. The development of digital communications, multimedia, signal processing and networks in recent years has forced the development and widespread use of ASICs. High-level synthesis tools ensure a shorter design time with fewer iterations in order to achieve acceptable solutions. They also lead a designer through the design to reduce the probability of errors in the earlier design stages. Nowadays, these tools are able to build competitive and reliable ICs in an acceptable design time. A variety of design and optimization systems exist, these are mainly intended for use in small and specialized design groups. But there are also some commercial systems for a wide range of users. These systems do not allow users to influence the design-flow, but work according to built-in algorithms. Only a few research systems allow their tasks to be influenced, e.g. operation scheduling and unit allocation. This work presents a method with an evolutionary approach to some of the tasks of integrated-circuit (IC) design. The first part consists of a short description of some essential characteristics of IC design. The discovery of the semiconducting properties of some materials and the production of transistors opened the door for digital technology. This technology allows for very high densities of transistor integration. The majority of today's ICs are built using CMOS technology, which results in low power losses and reduced noise while ensuring very symmetrical characteristics. This study is focused on application-specific integrated circuits (ASICs) that need an even more sophisticated design due to their specific use. The development of digital communications, multimedia, signal processing and networks in recent years has forced the development and widespread use of ASICs. High-level synthesis tools ensure a shorter design time with fewer iterations in order to achieve acceptable solutions. They also lead a designer through the design to reduce the probability of errors in the earlier design stages. Nowadays, these tools are able to build competitive and reliable ICs in an acceptable design time. A variety of design and optimization systems exist, these are mainly intended for use in small and specialized design groups. But there are also some commercial systems for a wide range of users. These systems do not allow users to influence the design-flow, but work according to built-in algorithms. Only a few research systems allow their tasks to be influenced, e.g. operation scheduling and unit allocation...