Light-emitting device with a spacer at bottom surface

An electronic display system, comprising:

• a substrate, the substrate having a top surface;
• a plurality of through-holes located on the substrate;
• a plurality of light-emitting devices attached on the top surface of the substrate;
• wherein each of the plurality of light-emitting devices further comprises a light source die, a plurality of leads, and an encapsulant body of encapsulant material;
• wherein the encapsulant body comprises at least one side surface, a bottom surface, and at least one spacer of the encapsulant material defining the body;
• wherein the bottom surface of the encapsulant body comprises an outer perimeter;
• wherein the encapsulant body comprises at least one trench located at the bottom surface of the encapsulant body and wherein the at least one trench extends outwardly through the outer perimeter;
• wherein two of the plurality of leads having elongated portions protruding from the bottom surface of the encapsulant body respectively;
• wherein the at least one spacer is substantially shorter compared to the elongated portions of the at least two of the plurality of leads that protrude from the bottom surface;
• wherein each of the plurality of light-emitting devices is attached to the top surface of the substrate by inserting the plurality of leads into the plurality of through-holes such that the at least one spacer is in contact with the top surface of the substrate, creating an air vent between the bottom surface of the plurality of light-emitting device and the top surface of the substrate;
• and wherein the air vent extends from the at least two of the plurality of leads and is configured to exhaust air outwardly from the encapsulant body.

An electronic system, comprising:

• a substrate, the substrate having a top surface;
• a plurality of through-holes located on the substrate;
• a light-emitting device attached on the substrate, the light-emitting device having a plurality of leads, an encapsulant body of an encapsulant material, and a die encapsulated by the encapsulant body;
• wherein the encapsulant body of the light-emitting device further comprises at least one spacer, at least a side surface and a bottom surface;
• wherein the at least one spacer is a protrusion of the encapsulant body protruding from the bottom surface of the encapsulant body but distanced away from the plurality of leads;
• wherein the encapsulant body has an outer perimeter;
• wherein the encapsulant body comprises at least one trench located at the bottom surface of the encapsulant body;
• wherein the at least one trench is formed surrounding the at least one spacer such that the at least one trench extends outwardly through the entire outer perimeter;
• wherein the light-emitting device is attached to the top surface of the substrate by inserting the plurality of leads into the plurality of through-holes such that the at least one spacer is in contact with the top surface of the substrate, creating an air vent between the bottom surface of the encapsulant body and the top surface of the substrate;
• wherein the air vent extends between the plurality of leads and the outer perimeter of the encapsulant body;
• and wherein air may be trapped inside the plurality of through-holes and the air vent is configured to release the trapped air outwardly from the body.