Light source device

A light source device, comprising:

• a substrate including a first surface and a second surface opposite to the first surface;
• an upper electrode layer disposed on the first surface of the substrate and including a first upper electrode pad and at least one second upper electrode pad, wherein the first upper electrode pad includes a die-bonding portion and a periphery portion arranged outside of the die-bonding portion;
• a lower electrode layer disposed on the second surface of the substrate and including a first lower electrode pad and at least one second lower electrode pad;
• a plurality of first conductive posts and a plurality of second conductive posts;
• a light emitter mounted on the die-bonding portion of the first upper electrode pad and electrically connected to the at least one second upper electrode pad;
• a surrounding frame disposed on the first surface and surroundingly disposed at an outer side of the light emitter;
• and
• a light permeable member disposed on the surrounding frame and covering the light emitter,
• wherein the first conductive posts are embedded in the substrate to connect the first upper electrode pad and the first lower electrode pad, and the first conductive posts are arranged along at least three sides of the light emitter at the periphery portion, and
• wherein the second conductive posts are embedded in the substrate to connect the at least one second upper electrode pad and the at least one second lower electrode pad.