UMC’s eHV technology is built on a logic CMOS process platform, enabling the integration of high-voltage devices and advanced logic circuitry within the same process. This capability is critical for display driver ICs (DDICs), which must efficiently manage multiple voltage domains while delivering precise signal to meet the requirements of today’s high-performance display panels. UMC’s eHV process technology offers a robust device portfolio, strong power-handling capability, and scalable design flexibility to support DDIC applications with demanding performance and reliability requirements.
UMC’s eHV platform spans multiple technology nodes from 0.8µm to 14nm, enabling optimized trade-offs among integration level, power consumption, and high-voltage requirements. To address the differences between LCD and OLED in breakdown voltage, driving schemes, and power characteristics, UMC provides node-specific eHV devices and process options across its portfolio. Comprehensive design enablement and production ramp support help reduce porting and verification efforts, shorten time-to-production, improve manufacturing consistency, aggressive yield ramp, and enhance supply predictability.
UMC’s eHV solutions support a broad range of display applications across everyday devices—from small- and mid-size panels used in smartphones, tablets, wearables, and notebooks to large-size panels for TVs and monitors. eHV also extends to fast-growing emerging display technologies such as micro-LED and micro-OLED, as well as advanced automotive displays and immersive AR/VR devices. In these applications, high performance, high reliability, efficient power management and chip area reduction are essential.
