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    • 9. 发明授权
    • Bonding pad for gallium nitride-based light-emitting device
    • 用于氮化镓基发光器件的接合焊盘
    • US07002180B2
    • 2006-02-21
    • US10187468
    • 2002-06-28
    • Steve Tchang-Hun OhHong K. ChoiBor-Yeu TsaurJohn C. C. Fan
    • Steve Tchang-Hun OhHong K. ChoiBor-Yeu TsaurJohn C. C. Fan
    • H01L27/15
    • H01L33/40
    • A bonding pad for an electrode is in contact with p-type gallium nitride-based semiconductor material that includes aluminum. The bonding pad may also includes one or more metals selected from the group consisting of palladium, platinum, nickel and gold. The bonding pad can be used to attach a bonding wire to the p-electrode in a semiconductor device, such as a light-emitting diode or a laser diode without causing degradation of the light-transmission and ohmic properties of the electrode. The bonding pad may be formed of substantially the same material as an electrode in making an ohmic contact with n-type gallium nitride-based semiconductor material (n-electrode). This allows the bonding pad and the n-electrode to be formed simultaneously when manufacturing a gallium nitride-based light-emitting device which substantially reduces the cost to manufacture the device.
    • 用于电极的焊盘与包括铝的p型氮化镓基半导体材料接触。 接合焊盘还可以包括一种或多种选自钯,铂,镍和金的金属。 接合焊盘可以用于在诸如发光二极管或激光二极管的半导体器件中的p电极上附接接合线,而不会导致电极的光透射和欧姆特性的劣化。 接合焊盘可以与与n型氮化镓基半导体材料(n电极)欧姆接触的与电极基本相同的材料形成。 这允许在制造基本上降低制造器件的成本的氮化镓基发光器件时同时形成焊盘和n电极。