Light emitting devices having current blocking structures...

H - Electricity – 01 – L

Patent

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H01L 33/62 (2010.01)

Patent

CA 2567794

Light emitting devices and methods of fabricating light emitting devices having a current blocking mechanism below the wire bond pad (22) are provided. The current blocking mechanism may be a reduced conduction region (30) in an active region (14) of the device. The current blocking mechanism could be a damage region of a layer on which a contact (18) is formed. The current blocking mechanism could be a Schottky contact between an ohmic contact (18) and the active region (14) of the device. A semiconductor junction, such as a PN junction could also be provided between the ohmic contact (18) and the active region (14).

Cette invention porte sur des dispositifs électroluminescents et sur des procédés de fabrication de dispositifs électroluminescents dotés d'un mécanisme de blocage de courant situé sous le plot de connexion de fils. Le mécanisme de blocage de courant peut être une zone de conduction réduite dans une zone active du dispositif. Le mécanisme de blocage de courant peut être une zone endommagée d'une couche sur laquelle un contact est formé. Le mécanisme de blocage de courant peut être un contact Schottky entre un contact ohmique et la région active du dispositif. Une jonction semi-conductrice, telle qu'une jonction PN, peut également être prévue entre le contact ohmique et la zone active.

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