Toshiba Launches Ultra-small Chip Scale Package White LEDs For Lighting Applications

by Rizwan Baig | Tuesday, Apr 22, 2014 | 1862 views

Toshiba Corporation today announced the launch of ultra-small chip scale package white LEDs for lighting applications that can reduce the mounting area by 90% compared to conventional 3.0 × 1.4 mm package products. [1] The new “TL1WK series” will start sample shipment from April.


The new products utilize gallium nitride-on-silicon (GaN-on-Si) process technology and a new process technology that fabricates the elements of a packaged LED on an 8-inch silicon wafer. The LEDs are the industry’s smallest in sub-watt class (1/4-1/2W) white LEDs[2], with a package size of just 0.65 × 0.65mm, but they achieve a luminous efficacy of 130lm/W[3] and superior heat dissipation. Using the new white LEDs makes it possible to achieve a narrow beam in small-size lighting equipments and can contribute to innovation in lighting design.

The new white LEDs will be showcased at “Light + Building”, a trade fair for lighting and architecture in Frankfurt, Germany from March 30 to April 4.


Light sources for general lighting, including straight tube lights, light bulbs and ceiling lights

Main Specifications of the New Products

Series Name TL1WK Series
Package Size 0.65 × 0.65 mm (Typ.)
Color Temperature 5000K
Color Rendering Index (Ra) 80 (Min)
Forward Current 180mA (Max)
Luminous Efficacy 130lm/W (Typ.)
Others Color variations under planning
(4000K, 3000K, 2700K)



  • [1] Toshiba survey.
  • [2] As of March 27, 2014. Toshiba survey.
  • [3] During 60mA operation. Toshiba survey.


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