Method for manufacturing semiconductor light-emitting element
View Patent ↗The invention is directed to the provision of a method for manufacturing a semiconductor light-emitting element that eliminates the need for preparing a plurality of different fluorescent sheets. The method for manufacturing the semiconductor light-emitting element containing an LED die includes the steps of arranging the LED die on a fluorescent sheet containing a fluorescent substance and adjusting the amount by which the LED die is depressed into the fluorescent sheet so that the semiconductor light-emitting element has a desired color emission.
1. A method for manufacturing a semiconductor light-emitting element containing an LED die, comprising the steps of:
arranging said LED die on a fluorescent sheet containing a fluorescent substance; and
adjusting an amount by which said LED die is depressed into said fluorescent sheet so that said semiconductor light-emitting element has a desired color emission.
2. The method for manufacturing the semiconductor light-emitting element according to claim 1 , further comprising the step of preparing a plurality of LED dies having substantially identical emission wavelength distributions, and wherein
said plurality of LED dies having substantially identical emission wavelength distributions are arranged side by side on said fluorescent sheet, and
said plurality of LED dies having substantially identical emission wavelength distributions are depressed into said fluorescent sheet by applying pressure simultaneously to said plurality of LED dies by using a head.
3. The method for manufacturing the semiconductor light-emitting element according to claim 2 , wherein
some of said plurality of LED dies are caused to emit light,
pressure is applied to some of said plurality of LED dies while measuring the color of light emitted from some of said plurality of LED dies caused to emit light,
the amount of depression is determined so that the color of light emitted from some of said plurality of LED dies caused to emit light matches said desired color emission, and
other LED dies which are other than some of said plurality of LED dies caused to emit light among said plurality of LED dies are depressed simultaneously into said fluorescent sheet by said determined amount of depression by applying pressure simultaneously to said other LED dies.
4. The method for manufacturing the semiconductor light-emitting element according to claim 3 , wherein said head is capable of applying pressure and heat.
5. The method for manufacturing the semiconductor light-emitting element according to claim 2 , wherein said head is capable of applying pressure and heat.
6. The method for manufacturing the semiconductor light-emitting element according to claim 1 , wherein
said fluorescent sheet is laminated to a transparent stage,
said LED die is depressed into said fluorescent sheet while causing said LED die to emit light,
the color of emitted light is measured through said transparent stage, and
the amount of depression is determined so that the color of the emitted light matches said desired color emission.
7. The method for manufacturing the semiconductor light-emitting element according to claim 1 , further comprising the step of applying an adhesive material between said fluorescent sheet and said LED die before depressing said LED die into said fluorescent sheet.
8. The method for manufacturing the semiconductor light-emitting element according to claim 1 , further comprising the step of molding a reflective resin so as to surround said LED die after adjusting said amount of depression.
9. The method for manufacturing the semiconductor light-emitting element according to claim 8 , further comprising the steps of:
after said molding step, cutting said fluorescent sheet together said reflective resin to separate each individual semiconductor light-emitting element; and
mounting said separated semiconductor light-emitting element on a surface mount carrier tape.