DISCO Fiber Optic Sensor HPF-223 (DBCHPFP2203-01)

The DISCO Sensor HPF-223 (associated part number: DBCHPFP2203-01) is a non-contact optical fiber sensor used in wafer dicing saws for height measurement and blade breakage detection (BBD). It serves as a critical consumable component within the equipment’s blade condition monitoring and focusing system.

Core Functionality: Utilizing optical fiber to transmit light signals, the sensor monitors the wear and structural integrity of the dicing blade in real time. During high-speed cutting, if a blade chips or breaks—causing an obstruction in the optical path or a degradation in the signal—the sensor immediately triggers an alarm and halts the machine, thereby preventing batch defects on the wafers. Additionally, it facilitates non-contact automatic focusing for the blade tip, ensuring consistent cutting depth.

Engineering Context: As a delicate optical component, the HPF-223 requires regular inspection or replacement. Its performance directly influences the sensitivity and false-alarm rate of the BBD system, making it a vital spare part for the routine maintenance of DISCO’s fully automatic dicing saws (such as the DFD/DAD series). This model is frequently encountered in the supply channels for used or refurbished spare parts.