Light emitting device including light transmissive member with concave portions

1. A light emitting device comprising:

a light emitting element having a top surface; and

a light-transmissive member covering at least the top surface of the light emitting element, the light-transmissive member having a principal surface located above the top surface of the light emitting element; wherein:

the principal surface of the light-transmissive member comprises a plurality of concave portions;

an absorption, corresponding to Si—OH, appearing in an absorption spectrum by the light-transmissive member, in a wave number range greater than 3700 cm −1 and less than 3000 cm −1 , is larger than an absorption appearing in an absorption spectrum by a silicone resin, in the wave number range greater than 3700 cm −1 and less than 3000 cm −1 ; and

absorption peaks, corresponding to Si—CH 3 , appearing in the absorption spectrum by the light-transmissive member, at a wave number of 2960 cm −1 or in a vicinity thereof and at a wave number of 800 cm −1 or in a vicinity thereof, are respectively lower than absorption peaks appearing in the absorption spectrum by the silicone resin, at the wave number of 2960 cm 1 or in the vicinity thereof and at the wave number of 800 cm −1 or in the vicinity thereof, the absorption spectra being obtained by infrared spectroscopy.

2. The light emitting device of claim 1 , wherein the plurality of concave portions have a depth of 0.9 μm or greater.

3. The light emitting device of claim 1 , wherein:

the light-transmissive member contains a silicone resin; and

the silicone resin contains an organic polysiloxane including at least one phenyl group in a molecule.

4. The light emitting device of claim 1 , wherein:

the light-transmissive member contains a silicone resin; and

the silicone resin contains an organic polysiloxane including a D unit, in which two methyl groups are bonded to a silicon atom.

5. A light emitting device comprising:

a light emitting element having a top surface; and

a light-transmissive member covering at least the top surface of the light emitting element, and having a top surface located above the top surface of the light emitting element; wherein:

the light-transmissive member contains a silicone resin;

the top surface of the light-transmissive member comprises a plurality of concave portions; and

a tackiness of the top surface of the light-transmissive member is in a range of 0.1 N·cm −2 to 8 N·cm −2 .

6. The light emitting device of claim 5 , wherein the plurality of concave portions have a depth of 0.9 μm or greater.

7. The light emitting device of claim 5 , wherein the silicone resin contains an organic polysiloxane including at least one phenyl group in a molecule.

8. The light emitting device of claim 5 , wherein the silicone resin contains an organic polysiloxane including a D unit, in which two methyl groups are bonded to a silicon atom.