Optical semiconductor element

摘要: PURPOSE: To provide an optical semiconductor element, which prevents reduction in the durability and deterioration vicinity of electrode from being generated has pad, utilizes efficiently a current is made to flow. CONSTITUTION: It found out that formed by ultrasonic machining at time formation, layer under pad subjected damage wave crystallizability element reduced result element. Therefore, high-resistance (an SiO 2 layer) 15, makes hard flow, thin region p-type 10 having no relation directly with light signal. By existence this flow lower part contributes emission In case LED, as contribute LED increased, luminous efficiency improved. As does not so much 10, generation migration inhibited, life required product prolonged quality COPYRIGHT: (C)1996,JPO