Introduction:
A CPU scheduling algorithm is responsible for determining the order in which processes are executed by the CPU. There are several optimization criteria that can be considered when designing a CPU scheduling algorithm. This response will explain why minimum CPU utilization is not an optimization criterion in this context.

Explanation:
1. Minimum CPU utilization:
Minimum CPU utilization is not typically considered as an optimization criterion in the design of a CPU scheduling algorithm. The objective of a scheduling algorithm is to efficiently allocate CPU time to processes in order to maximize system performance. Therefore, minimizing CPU utilization is not a primary concern. Instead, the focus is on achieving other optimization criteria such as throughput, turnaround time, and waiting time.

2. Maximum throughput:
Throughput refers to the number of processes that are completed per unit of time. Maximizing throughput is an important optimization criterion as it indicates the efficiency of the CPU scheduling algorithm in terms of completing a large number of processes within a given timeframe. This helps in achieving high system performance and productivity.

3. Minimum turnaround time:
Turnaround time is the total time taken for a process to complete execution from the moment it is submitted to the CPU. Minimizing turnaround time is a crucial optimization criterion as it ensures that processes are executed and completed quickly, leading to efficient utilization of system resources.

4. Minimum waiting time:
Waiting time refers to the amount of time a process spends in the ready queue, waiting for its turn to be executed by the CPU. Minimizing waiting time is an important optimization criterion as it reduces the overall waiting time for processes, leading to improved system performance and responsiveness.

Conclusion:
In the design of a CPU scheduling algorithm, the optimization criteria primarily focus on maximizing throughput, minimizing turnaround time, and minimizing waiting time. While minimizing CPU utilization may seem beneficial in some cases, it is not a primary concern in this context.