News: Suppliers
8 October 2024
Keysight unveils 3kV high-voltage wafer test system for power semiconductors
Keysight Technologies Inc of Santa Rosa, CA, USA has expanded its semiconductor test portfolio by introducing the 4881HV high-voltage wafer test system, which is said to improve the productivity of power semiconductor manufacturers by enabling parametric tests up to 3kV supporting high- and low-voltage in one-pass test.
Picture: Keysight's 4881HV high-voltage wafer test system.
Manufacturers have traditionally measured wafers using separate testers for high and low voltages. However, demand for power semiconductors is growing rapidly due to their multi-functionality, higher performance, and next-generation devices such as silicon carbide (SiC) and gallium nitride (GaN). As a result, customers need a solution to more accurately and efficiently test their devices and reduce time to market.
Keysight says that its new system addresses these challenges by allowing power device makers to perform process control monitoring (PCM) and wafer acceptance testing (WAT) in manufacturing. The new test system is said to deliver the following benefits:
- High-voltage capability to meet future needs: The high-voltage switching matrix (HV-SWM) supports up to 3kV requirements, is scalable up to 29 pins, and integrates with precision source measure units (SMUs). It enables highly flexible measurements from low current down to sub-pA resolution up to 3kV at any pins. Additionally, high-voltage capacitance measurement and various parametric tests are supported.
- One-pass testing increases productivity and efficiency: The HV-SWM enables a single test system instead of separate high-voltage and low-voltage test systems. Utilizing one system is more efficient and reduces the required footprint and testing time. The system integrates with factory automation environments using Keysight’s SPECS-FA software, which improves the efficiency of the entire production process.
- Enhanced safety and reliability: The test system has built-in protection circuitry and machine control, ensuring operators and equipment are not impacted by high-voltage surges during a test, and is compliant with safety regulations, including SEMI S2 standards.
