| 摘要 |
PROBLEM TO BE SOLVED: To improve, in particular efficiency of mass production of a light- emitting diode, to make thinner as the light-emitting diode, and to make color tone of the light-emitting diode closer to desired color tone, by forming a recessed part by a coining work where a substrate is thrust with a protruding- shaped punch. SOLUTION: A substrate is formed, in such a that a metal piece acting as a lead electrode is placed in a metal mold before liquid crystal polymer is injected to insert-form and then is taken out after cooling. Then a recessed part for placing an LED chip on the formed substrate is formed by coining work. Multiple protruding-shaped punches 27, standing in a row are dropped toward heated substrates 21 to form recessed shapes 23 by thrusting, and then the punches are returned right above. By sending multiple substrates 21 standing in a row before cutting into each under the punches in the order, efficiency of forming the recessed part on the substrate 21 is improved by for. |
