👉 Chromes are a type of semiconductor material that is used in electronic devices such as transistors, diodes, and power MOSFETs. They consist of two layers of metal (usually tin) sandwiched between two layers of semiconducting materials called p-n junctions. The metal layer serves as the source and drain, while the other layer acts as the conduction band and holes in a semiconductor material. This structure allows for high power conversion efficiency and improved performance compared to