led package

  1. 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...
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    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...
  6. 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...
  7. 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...
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    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...
  10. 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...
  11. Shine

    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...
  12. 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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    Explore Best CSP LEDs

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    Explore Best High Power LED Packages

    High power LEDs are single-chip or multi-die LED packages fabricated typically on ceramic substrates. Efficient thermal design allows the high flux density LEDs to deliver dependable lighting with excellent lumen maintenance and high color stability over the lifetime of the product...
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    Explore Best COB LEDs

  16. Shine

    Explore Best Mid-power LED Packages