Semiconductor device and semiconductor device package including the same
First Claim
1. A semiconductor device comprising:
- a light emitting structure that comprises;
a first conductivity type semiconductor layer having aluminum;
a second conductivity type semiconductor layer having aluminum; and
an active layer having aluminum and provided between the first conductivity type semiconductor layer and the second conductivity type semiconductor layer,wherein;
when primary ions are bombarded on the light emitting structure to sputter away secondary ions of aluminum from the first conductivity type semiconductor layer, the active layer and the second conductivity type semiconductor layer, secondary ions of aluminum are produced in respective intensities for the first conductivity type semiconductor layer, the active layer, and the second conductivity type semiconductor layer,an intensity of the secondary ions of aluminum comprises a maximum intensity in the light emitting structure, a minimum intensity in the light emitting structure, a second intensity which is the smallest intensity in a region spaced away from the maximum intensity in a first direction, and a first peak intensity spaced away from the maximum intensity which is the greatest peak intensity in a region disposed between the maximum intensity and the second intensity,wherein the maximum intensity is spaced away from the minimum intensity in the first direction, and the first peak intensity is spaced away from the maximum intensity in the first direction,wherein the first conductivity type semiconductor layer includes a first region having the intensity of the secondary ions be between the first peak intensity and the second intensity, the second conductivity type semiconductor layer includes a second region having the intensity of the secondary ions be between the maximum intensity and the minimum intensity, and the active layer includes a third region having the intensity of the secondary ions be between the maximum intensity and the first peak intensity,wherein the first direction is a thickness direction of the light emitting structure from the second conductivity type semiconductor layer towards the first conductivity type semiconductor layer,wherein a first intensity difference (D1) between the maximum intensity and the second intensity is greater than a second intensity difference (D2) between the minimum intensity and the second intensity.
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Accused Products
Abstract
A semiconductor device includes a semiconductor structure including a first conductive semiconductor layer, a second conductive semiconductor layer, and an active layer provided between the first conductive semiconductor layer and the second conductive semiconductor layer, and a semiconductor device package including the semiconductor device. The active layer includes a plurality of barrier layers and a plurality of well layers. The second conductive semiconductor layer includes a conductive second semiconductor layer and a conductive first semiconductor layer provided on the conductive second semiconductor layer. The conductive second semiconductor layer has a higher aluminum composition than the well layers, and the conductive first semiconductor layer has a lower aluminum composition than the well layers.
27 Citations
20 Claims
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1. A semiconductor device comprising:
a light emitting structure that comprises; a first conductivity type semiconductor layer having aluminum; a second conductivity type semiconductor layer having aluminum; and an active layer having aluminum and provided between the first conductivity type semiconductor layer and the second conductivity type semiconductor layer, wherein; when primary ions are bombarded on the light emitting structure to sputter away secondary ions of aluminum from the first conductivity type semiconductor layer, the active layer and the second conductivity type semiconductor layer, secondary ions of aluminum are produced in respective intensities for the first conductivity type semiconductor layer, the active layer, and the second conductivity type semiconductor layer, an intensity of the secondary ions of aluminum comprises a maximum intensity in the light emitting structure, a minimum intensity in the light emitting structure, a second intensity which is the smallest intensity in a region spaced away from the maximum intensity in a first direction, and a first peak intensity spaced away from the maximum intensity which is the greatest peak intensity in a region disposed between the maximum intensity and the second intensity, wherein the maximum intensity is spaced away from the minimum intensity in the first direction, and the first peak intensity is spaced away from the maximum intensity in the first direction, wherein the first conductivity type semiconductor layer includes a first region having the intensity of the secondary ions be between the first peak intensity and the second intensity, the second conductivity type semiconductor layer includes a second region having the intensity of the secondary ions be between the maximum intensity and the minimum intensity, and the active layer includes a third region having the intensity of the secondary ions be between the maximum intensity and the first peak intensity, wherein the first direction is a thickness direction of the light emitting structure from the second conductivity type semiconductor layer towards the first conductivity type semiconductor layer, wherein a first intensity difference (D1) between the maximum intensity and the second intensity is greater than a second intensity difference (D2) between the minimum intensity and the second intensity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A semiconductor device package comprising:
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a body; and a semiconductor device disposed on the body, wherein the semiconductor device has a light emitting structure including; a first conductivity type semiconductor layer having aluminum; a second conductivity type semiconductor layer having aluminum; and an active layer having aluminum and provided between the first conductivity type semiconductor layer and the second conductivity type semiconductor layer, wherein; when primary ions are bombarded on the light emitting structure to sputter away secondary ions of aluminum from the first conductivity type semiconductor layer, the active layer and the second conductivity type semiconductor layer, secondary ions of aluminum are produced in respective intensities for the first conductivity type semiconductor layer, the active layer, and the second conductivity type semiconductor layer, an intensity of the secondary ions of aluminum comprises a maximum intensity in the light emitting structure, a minimum intensity in the light emitting structure, a second intensity which is the smallest intensity in a region spaced away from the maximum intensity in a first direction, and a first peak intensity spaced away from the maximum intensity which is the greatest peak intensity in a region disposed between the maximum intensity and the second intensity, wherein the maximum intensity is spaced away from the minimum intensity in the first direction and the first peak intensity is spaced away from the maximum intensity in the first direction, wherein the first conductivity type semiconductor layer includes a first region having the intensity of the secondary ions be between the first peak intensity and the second intensity, the second conductivity type semiconductor layer includes a second region having the intensity of the secondary ions be between the maximum intensity and the minimum intensity, and the active layer includes a third region having the intensity of the secondary ions be between the maximum intensity and the first peak intensity, wherein the first direction is a thickness direction of the light emitting structure from the second conductivity type semiconductor layer towards the first conductivity type semiconductor layer, wherein a first intensity difference (D1) between the maximum intensity and the second intensity is greater than a second intensity difference (D2) between the minimum intensity and the second intensity.
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Specification