led package

  1. Splendor

    Vote Top Horticulture LED Manufacturers | Who Produce the Best LEDs for Grow Lights

    What Is a Horticulture LED Horticulture LEDs are solid state light sources that produce photosynthetically active radiation (PAR) over the spectral range of 400 to 700 nanometers (nm) to drive photosynthesis in plants. Additionally, horticulture LEDs can be used to produce electromagnetic...
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    Vote Top Mid-power LED Manufacturers | Who Produce the Best Mid-power LEDs

    What Are Mid-power LEDs Mid-power LEDs are LED packages that operate with a power consumption of less than 1 watt but higher than 0.1 watt. Striking a fair balance between cost and efficacy, mid-power LEDs are leading the transition from inefficient, short-lived lighting systems to the cutting...
  3. Shine

    Knowledge What Is LED Binning?

    LED binning is a process of sorting LEDs according to specific criteria such as chromaticity, lumen output (luminous flux), and sometimes forward voltage (amount of voltage it takes to turn on an LED). Variability in the manufacturing process from wafer production and crystal growth to component...
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    Knowledge What Is a COB LED?

    A COB LED is a surface-emission LED package that mounts an array of LED chips, known as “LED dies”, onto a metal-core printed circuit board (MCPCB) or a ceramic substrate to produce homogenous, high flux density illumination. It thus has this name because the chips directly attached to the...
  5. Shine

    Knowledge What Is an SMD LED?

    An SMD LED is a semiconductor package that is designed exclusively for automatic population of printed circuit boards using surface mount technology (SMT). SMD is short for "surface mounted device". SMD LEDs are designed to be compatible with existing industrial SMT processes where automated...
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    Knowledge What Are RGB, RGBW, RGBA and RGBWA LEDs?

    RGB, RGBW, RGBA and RGBWA LEDs are multi-chip or multi-channel LED packages designed to produce a broad spectrum of precisely controllable light, including white light of different chromaticities and millions of saturated colors and pastels. An RGB LED refers to an LED package that integrates...
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    Knowledge What Is a Phosphor-converted LED (PC-LED)?

    A phosphor-converted LED refers to an LED package that uses phosphor conversion (PC) to broaden the spectral power distribution (SPD) of its optical radiation. An LED chip by nature is a narrow-band emitter with a full width at half maximum (FWHM) value in the range of from about 15 nm to about...
  8. Splendor

    Knowledge What Is a Violet-pump LED?

    A violet-pump LED is a phosphor-conversion white LED package which uses a violet LED chip (InGaN die) to pump light into a wavelength converting element (down-converter). The wavelength converting element that contains red, green and blue phosphors provides complete conversion of...
  9. Splendor

    Knowledge What Is a Blue-pump LED?

    A blue-pump LED is a phosphor-conversion white LED package which uses a blue LED chip (InGaN die) to pump light into a wavelength converting element (down-converter). The wavelength converting element contains one or more conversion phosphors. It absorbs blue photons form LEDs and produces...
  10. Shine

    Knowledge What Are GaN-on-Sapphire, GaN-on-SiC, GaN-on-Si, and GaN-on-GaN?

    Gallium nitride (GaN), an III-V compound semiconductor, holds a dominant position in the solid state lighting industry and has emerged as the preferred choice in the power electronics market. GaN devices such as an LED has a heterostructure grown on a substrate by metal-organic vapor phase...
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    Knowledge What Is a QFN EMC LED Package?

    A QFN EMC LED package is a plastic LED package that shares a lot in common with the architecture of plastic leaded chip carrier (PLCC) mid-power packages but comes with improved thermal stability and interconnect reliability. QFN is short for Quad Flat No-lead. A QFN package is designed in a way...
  12. Shine

    Knowledge Types of LED Packages for Lighting Applications

    An LED package is a fully functional LED light source that produces optical radiation through electroluminescence and, in many instances, photoluminescence within a semiconductor device. LED packages are packaged LED dies (chips) with all elements available to facilitate integration of the light...
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    Knowledge LED Tutorial: LED Chips and LED Packages

    An LED chip is a bare semiconductor die that has a p-n junction sandwiched between oppositely doped layers. LED chips have a narrow spectral band and emit light of a single color. The selection of semiconductor and doping materials determines the spectral power distribution of light emitted from...
  14. Shine

    Knowledge What is an LED die (LED chip)?

    An LED die, more commonly known as an LED chip, is a small block of compound semiconductor material that has a p-n junction (positive-negative junction) sandwiched between oppositely doped layers. Under biased conditions the p-n junction can break down causing current to flow from the p-side of...
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    Vote Top CSP LED Manufacturers | Who Produce the Best Chip Scale LED Packages

    What Is a CSP LED A chip scale package (CSP) LED is defined as an LED package that has a close ratio between the volume of the LED chip and the total volume of the LED package. A CSP package is essentially a bare LED die (chip) on which a phosphor layer is coated, with the underside of the die...
  16. Splendor

    Vote Top High Power LED Manufacturers | Who Produce the Best High Power LEDs

    What Is a High Power LED A high power LED is commonly defined as an LED package that operates at 1 watt of power or higher. This high flux density light source may be driven at current from hundreds of mA to more than an ampere, and a single LED can pump out hundreds or even thousands of lumens...
  17. Splendor

    Vote Top COB LED Manufacturers | Who Produce the Best Chip-on-Board LED Packages

    What Is a COB LED A chip-on-board (COB) LED is a multi-die LED package in which an array of diodes are directly mounted and electrically interconnected onto a metal-core printed circuit board (MCPCB) or a ceramic substrate. The die matrix is then coated with an organic polymer containing a...
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