UV-C LED Sealing Lid
UV-C LED sealing lids are designed for optimal bonding, using materials like aluminum nitride (AIN) and alumina that share similar coefficients of thermal expansion. The glass component features high transmittance in the UV-C wavelength range.
Available in three lid types—thin, high-power and light diffusion (boasting the world’s highest light extraction efficiency)—each offers unique features suited for a wide range of applications. Based on your requirements, we can recommend the ideal combination of lid type and solder to achieve the best performance.
Features
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Lid remains intact and durable even when joined with solder, using bonding materials (AIN: aluminum nitride, alumina) that share similar coefficients of thermal expansion.
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Available in three shapes: flat, square, and dome.
Product Lineup and Properties
| Product | Flat Lid | Square Lid | Dome Lid |
|---|---|---|---|
| Photo |  |
 |
 |
| Glass | UV-C high-transmitting glass (BU-41) | ||
| UV-C AR Coating | Double-sided | Double-sided | Double-sided |
| Type | Thin type | High-power type | Light diffusion type |
| Light extraction efficiency | 89% | 92% | 95% |
| Light distribution angle | 100° | 110° | 120° |
| Features | - Plate shape suitable for cavity-type AIN package - Ideal for thinning package designs |
- Simplifies AIN package structures - High light extraction efficiency |
- Achieves world’s highest light extraction efficiency, making it perfect for high-output UV-C LEDs - Provides a wider beam angle compared to square designs - Supports dome diameters ranging from 2.4 mm to 60 mm - Ensures high productivity |
| - Any metal solder can be formed depending on the reflow temperature. (300℃ : AuSn solder, 250℃ : SnAgCu solder) | |||
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