Photonic semiconductor device, photonic semiconductor package using the same and manufacturing method thereof
A photonic semiconductor device including a light-emitting component and a photonic integrated circuit is provided. The light-emitting component at least includes a gain medium layer, a first contact layer and a first optical coupling layer stacked to each other. The photonic integrated circuit includes a second optical coupling layer. The light-emitting component and the photonic integrated circuit are stacked in a stacking direction, the first optical coupling layer has a first taper portion, the second optical coupling layer has a second taper portion, and the first taper portion and the second taper portion overlap in the stacking direction. Accordingly, the light emitted from the gain medium layer may be transmitted to the second taper portion from the first taper portion by optical coupling in a short length of an optical coupling path.
1 . A manufacturing method of a photonic semiconductor device, comprising:
providing a light-emitting component, wherein the light-emitting component comprises a gain medium layer, a first contact layer and a first optical coupling layer stacked to each other, and the first optical coupling layer has a first taper portion;
providing a photonic integrated circuit, wherein the photonic integrated circuit comprises a second optical coupling layer comprising a second taper portion; and
disposing the light-emitting component on the photonic integrated circuit, wherein the light-emitting component and the photonic integrated circuit are stacked in a stacking direction, and the first taper portion and the second taper portion overlap in the stacking direction;
wherein in providing the photonic integrated circuit, the photonic integrated circuit comprises a FEOL (Front End of Line) circuit layer having a recess; the manufacturing method further comprises:
forming an insulation layer to encapsulate the light-emitting component;
in disposing the light-emitting component on the photonic integrated circuit, a portion of the insulation layer is located within the recess of the photonic integrated circuit.
2 . The manufacturing method as claimed in claim 1 , further comprising:
disposing the light-emitting component on a carrier through a bonding layer; and
forming the insulation layer on the carrier to encapsulate the light-emitting component, wherein the insulation layer comprises a first insulation portion and a second insulation portion, and the second insulation portion protrudes with respect to the first insulation portion;
wherein in disposing the light-emitting component on the photonic integrated circuit, the second insulation portion is located within the recess of the photonic integrated circuit.
3 . The manufacturing method as claimed in claim 1 , wherein in providing the light-emitting component, the gain medium layer, the first contact layer and the first optical coupling layer are formed on a substrate; the manufacturing method further comprising:
disposing the light-emitting component on a carrier through a bonding layer; and
removing the substrate from the light-emitting component.
4 . The manufacturing method as claimed in claim 1 , wherein in providing the light-emitting component, the first contact layer is a P-type contact, the first optical coupling layer is a waveguide layer, the light-emitting component further comprises a N-type contact, and the P-type contact and the N-type contact are disposed on the opposite two sides of the waveguide layer.
5 . The manufacturing method as claimed in claim 1 , wherein in providing the light-emitting component, the first contact layer and the first optical coupling layer are located at the same side of the gain medium layer.
6 . The manufacturing method as claimed in claim 2 , where in disposing the light-emitting component on the photonic integrated circuit, the photonic integrated circuit has a surface, the recess is recessed with respect to the surface, the first optical coupling layer and the second optical coupling layer are disposed adjacent to the surface.
7 . The manufacturing method as claimed in claim 1 , wherein the first optical coupling layer is exposed from the photonic semiconductor device.
8 . The manufacturing method as claimed in claim 2 , wherein in forming the insulation layer on the carrier to encapsulate the light-emitting component, the insulation layer encapsulates the gain medium layer and the first contact layer, but exposes the first optical coupling layer.
9 . The manufacturing method as claimed in claim 8 , wherein in forming the insulation layer on the carrier to encapsulate the light-emitting component, the insulation layer has an insulation surface, the first optical coupling layer has a coupling surface, and the insulation surface and the coupling surface are flush with each other.
10 . The manufacturing method as claimed in claim 1 , wherein in providing the light-emitting component, the first contact layer is a P-type contact, and the first optical coupling layer is a N-type contact.
11 . The manufacturing method as claimed in claim 10 , wherein in providing the light-emitting component, the P-type contact and the N-type contact are located at the opposite two sides of the gain medium layer.
12 . The manufacturing method as claimed in claim 1 , wherein in providing the light-emitting component, the gain medium layer has a coupling portion, the first taper portion protrudes with respect to the coupling portion.
13 . A manufacturing method of a photonic semiconductor device, comprising:
providing a light-emitting component, wherein the light-emitting component comprises a gain medium layer and a first optical coupling layer having a first taper portion, the gain medium layer has a coupling portion, and the first taper portion protrudes with respect to the coupling portion;
providing a photonic integrated circuit, wherein the photonic integrated circuit comprises a second taper portion; and
disposing the light-emitting component on the photonic integrated circuit, wherein the light-emitting component and the photonic integrated circuit are stacked in a stacking direction, and the first taper portion and the second taper portion overlap in the stacking direction;
wherein in providing the photonic integrated circuit, the photonic integrated circuit comprises a FEOL circuit layer having a recess; the manufacturing method further comprises:
forming an insulation layer to encapsulate the light-emitting component;
in disposing the light-emitting component on the photonic integrated circuit, a portion of the insulation layer is located within the recess of the photonic integrated circuit.
14 . The manufacturing method as claimed in claim 13 , further comprising:
disposing the light-emitting component on a carrier through a bonding layer; and
forming an insulation layer on the carrier to encapsulate the light-emitting component, wherein the insulation layer comprises a first insulation portion and a second insulation portion, and the second insulation portion protrudes with respect to the first insulation portion;
wherein in disposing the light-emitting component on the photonic integrated circuit, the second insulation portion is located within the recess of the photonic integrated circuit.
15 . The manufacturing method as claimed in claim 13 , wherein in providing the light-emitting component, the gain medium layer and the first optical coupling layer are formed on a substrate; the manufacturing method further comprising:
disposing the light-emitting component on a carrier through a bonding layer; and
removing the substrate from the light-emitting component.
16 . The manufacturing method as claimed in claim 14 , where in disposing the light-emitting component on the photonic integrated circuit, the photonic integrated circuit has a surface, the recess is recessed with respect to the surface, the first optical coupling layer and a second optical coupling layer of the photonic integrated circuit are disposed adjacent to the surface.
17 . The manufacturing method as claimed in claim 13 , wherein the first optical coupling layer is exposed from the photonic semiconductor device.
18 . A manufacturing method of a photonic semiconductor device, comprising:
providing a light-emitting component, wherein the light-emitting component comprises a gain medium layer, a P-type contact, a N-type contact and a waveguide layer having a first taper portion, the gain medium layer has a coupling portion, the first taper portion protrudes with respect to the coupling portion, and the P-type contact and the N-type contact are disposed on the opposite two sides of the waveguide layer;
providing a photonic integrated circuit, wherein the photonic integrated circuit comprises a second taper portion; and
disposing the light-emitting component on the photonic integrated circuit, wherein the light-emitting component and the photonic integrated circuit are stacked in a stacking direction, and the first taper portion and the second taper portion overlap in the stacking direction;
wherein in providing the photonic integrated circuit, the photonic integrated circuit comprises a FEOL circuit layer having a recess; the manufacturing method further comprises:
forming an insulation layer to encapsulate the light-emitting component;
in disposing the light-emitting component on the photonic integrated circuit, a portion of the insulation layer is located within the recess of the photonic integrated circuit.
19 . The manufacturing method as claimed in claim 18 , further comprising:
disposing the light-emitting component on a carrier through a bonding layer; and
forming the insulation layer on the carrier to encapsulate the light-emitting component, wherein the insulation layer comprises a first insulation portion and a second insulation portion, and the second insulation portion protrudes with respect to the first insulation portion;
wherein in disposing the light-emitting component on the photonic integrated circuit, the second insulation portion is located within the recess of the photonic integrated circuit.
20 . The manufacturing method as claimed in claim 18 , wherein in providing the light-emitting component, the P-type contact and the waveguide layer are located at the same side of the gain medium layer.