| 摘要 |
PURPOSE:To perform a stable contact bonding for preventing the electric characteristics from being deteriorated by arranging microelectrodes on the central part of the surface and on the peripheral part point-symmetrically with respect to the center when the electrodes are installed on the top of a mesa diode with a small surface area in a contact bonding manner. CONSTITUTION:A plurality of ohmic electrodes 25 are provided on the central part of the surface of the top of the mesa of a diode for a small output having the lower surface electrode 26, and similarly a plurality of microelectrodes 28 are provided on the peripheral part of said surface point-symmetrically to the center. Hereby, it is possible to perform a stable contact bonding without having the tip inclined when installed, thus the deterioration of electrical caracteristics is prevented. |
