Analysis of The Effect of Heat Treatment on Changes in Mechanical Properties and Electronic Performance of Thin Foil for Electronic Components

The rapid development of the electronics industry creates a need for small-sized materials with good mechanical properties and electronic performance to improve efficiency during production. However, in thin materials deformation is prone to occur during the production process which can damage the mechanical properties of the material. To minimize the deformation that occurs, heat treatment is performed. Heat treatment is carried out at temperatures of 400 °C, 650 °C, and 900 °C and different cooling, namely furnace cooling, air cooling, and water cooling. Observations to evaluate the effect of heat treatment, with heating at various temperatures and different cooling rates on the mechanical properties and electronic performance of 304 stainless steel thin foil. Tensile tests were conducted to determine changes in the mechanical properties of the samples, while the electronic performance to be observed is the conductivity carried out by the steady state method on two hot plates. The results show that the higher the temperature and the faster the cooling rate during heat treatment, the conductivity of the sample increases, the best conductivity is obtained from the water cooling sample heated at 900 °C with a conductivity value of 20.38 W/mK with a time range of 515 seconds. Although conductivity increased after heat treatment, the average value of mechanical properties decreased, from the tensile test conducted, the highest UTS sample was 847.75 MPa in the water cooling sample with 650 °C heating. The rapid development of the electronics industry creates a need for small-sized materials with good electrical conductivity. Surface roughness (Ra) was measured using Aziz equation which was found in 2022.