Silicon carbide was the main commercially crucial semiconductor material. A crystal radio "carborundum" (artificial silicon carbide) detector diode was patented by Henry Harrison Chase Dunwoody in 1906. It found Considerably early use in shipboard receivers. Acheson Course of action: The most typical approach, named after its inventor Edward G. Acheson. https://garrettfgged.wikistatement.com/4720302/silicium_carbide_can_be_fun_for_anyone