The purpose of this paper is to examine the design method of a micro-constraint that, with proper performance, can automatically take a micro-part according to the important parameters of the reaction time and force, and after performing various steps on the part. Be. Release the piece and be ready to take the next piece. The use of CMOS technology in the design of retaining walls and the use of SMA technology in the design of the retaining bracket and its replacement instead of other existing designs in optimizing energy consumption power and reaction time, as well as combining the last two technologies play an essential role in this article. Is responsible. In the following, the mentioned design is examined through stimulation modeling based on mass and spring system and using mathematical software, analytical equations of stimulus movement based on time are extracted so that the time of deformation of stimulus can be calculated as a parameter.