White semiconductor light emitting element and manufacturing method thereof

• Main Author: NISHIHARA, TAIHEI
• Format: Patent
• Language: Chinese; English
• Published: 16.10.2007
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

Electrode films (11, 12) are formed at both ends on an insulating substrate (1). An LED chip (2) emitting blue light is mounted on the insulating substrate (1). The LED chip (2) has a pair of electrodes electrically connected to the pair of electrode films (11, 12), respectively by connection means (3). A half of the LED chip (2) is coated by resin containing a red color conversion member (4a) for converting blue light into red light in such a manner that the half of the LED chip (2) is in contact with the resin, thereby forming a first resin layer (4). The other half of the LED chip (2) is similarly coated by resin containing a green color conversion member (5a) for converting blue light into green light, thereby forming a second resin layer (5). As a result, it is possible to attach the resin containing emission light color conversion members directly to the LED in such a manner that the red and green emission light color conversion members are not mixed with each other and obtain a white semiconductor ligh