OnChip Introduces Small ESD Protection Diodes For HB LED

OnChip Devices introduced a wire-bondable miniature silicon ESD protection diode chips targeted for the High-Brightness and Power LED markets. OnChip’s ESD devices are built on silicon and offer back-to-back diode topology. They are available either in a single-wire or dual-wire formats. OnChip also offers ESD flip chips consisting of two solder bumps for surface mount application. All devices meet the requirements of IEC61000-4-2 level 4 (air discharge up to 15kV, contact discharge up to 8kV).

According to the company, High Brightness LEDs (HB LED) and High Power White LEDs using InGaN technology are poised to enable a market transition to energy efficient Solid State Lighting (SSL). These LEDs continue to make major inroads into lighting applications that were traditionally dominated by incandescents and other light sources. They can be found in a wide range of applications such as traffic signals, LCD backlights, mobile handset camera flashes, automotive brake lights, architectural lighting, and full-color displays. It is claimed that one of the main drawbacks of the HB-LED products is the fact that they are extremely ESD sensitive. OnChip states that its silicon diodes help eliminate this weakness.

OnChip’s ESD-8x8 single-wire ESD diode is only 200 x 200um in size and is available in a 100um (4 mils) thickness. The ESD-PL02 is a larger device with an approximate size of 18 x 18 x 6 mils and is designed to handle voltages as high as 28V. The ESD-PL02 is well-suited for protecting a string of LEDs such as RGB modules.

The OnChip ESD-8x8 is available immediately worldwide at $0.01 USD in quantities of 50,000. The ESD-PL02 is priced at $0.03 in quantities of 25,000.