Method of making light emitting diodes

A method of making a plurality of light emitting diodes simultaneously, comprising steps of:

• providing a wafer and a first bonding layer;
• adhering the first bonding layer to a bottom side of the wafer;
• cutting the wafer to form a plurality of LED dies on the first bonding layer;
• adhering a second bonding layer on top sides of the plurality of LED dies;
• removing the first bonding layer;
• mounting the second bonding layer with the plurality of LED dies on a base having a plurality of recesses, in which the second bonding layer attaches a top surface of the base, and the LED dies are received in tops of the recesses, respectively;
• treating the second bonding layer to cause the second bonding layer to lose its viscosity and letting the plurality of LED dies fall into bottoms of the recesses of the base, respectively, in which the LED dies are entirely received in the recesses with the top sides thereof lower than the top surface of the base;
• electrically connecting both electrodes of each of the LED dies to electric poles in the base;
• filling transparent material into the recesses to encapsulate the LED dies;
• and
• cutting the base to form the plurality of light emitting diodes.