Sony Semiconductor Solutions Corporation announced the IMX742, a 1 mm-square CMOS image sensor packing approximately 0.51 effective megapixels for single-use medical endoscopes, featuring industry-first 5-meter digital transmission with sample shipments planned for November 2026.
Sony Develops Ultra-Compact IMX742 Image Sensor
The newly unveiled IMX742 image sensor pairs a back-illuminated device structure with an ultra-compact chip size measuring precisely 1.00 mm by 1.00 mm, according to data released by Sony Semiconductor Solutions Corporation (Sony). Built for narrow-diameter insertion tubes, the 1/17.7-type CMOS sensor features an effective pixel array of 720 by 720, yielding approximately 0.51 megapixels with a unit cell size of 1.00 µm by 1.00 µm.
Integrating an analog-to-digital converter directly onto a sensor of this scale typically presents severe layout hurdles. Sony overcame these constraints by shrinking peripheral circuitry while preserving adequate silicon area for the pixel matrix. Sofia Reyes writing for Asia Tech Times reported that the manufacturer shrank peripheral circuits, including the A/D converter, while maintaining sufficient pixel area. The design incorporates a rolling shutter and global reset mode alongside a Bayer CRA 30-degree filter and a 6-pin wafer-level chip scale package (WCSP).
Digital Signals Enable Lower-Noise Imaging over Single Cables
A primary engineering breakthrough in the IMX742 design involves signal handling over extended cabling. Traditional miniature endoscopes rely on analog transmission, which degrades in low-light conditions inside the body. By digitizing image signals directly on the chip, the new component achieves lower-noise imaging and supports a smooth frame rate of 60 fps alongside 30 fps operation.
To prevent cumbersome cable harnesses, the sensor utilizes proprietary bi-directional communication technology. This system transmits both control commands and video feeds through a single cable while keeping the sensor pin count down to six. Sony confirmed that the 5 m transmission distance was validated in its own evaluation environment utilizing an AWG44 cable.
Market Demand for Disposable Endoscopes and Upcoming Sample Shipments
Adoption of single-use disposable endoscopes is accelerating across hospitals and clinics to mitigate cross-contamination risks and ease the operational weight of equipment reprocessing. Thin endoscope applications such as bronchoscopes and ureteroscopes require sensors that fit into tight spaces without sacrificing visibility under compact LED illumination sources.
Sony has established sample shipments to begin in November 2026. According to coverage by Sofia Reyes for Asia Tech Times, the item lacks medical device classification and has not undergone medical evaluation or clearance, serving instead as a building block intended for integration into systems like medical devices. Furthermore, Asia Tech Times stated in its coverage that the item is not meant for medical use in Hong Kong, and that the announcement does not constitute promotional material in that region. Healthcare sectors are seeing an upward trend in the adoption of disposable, single-use endoscopes to ward off infections and alleviate the operational workload associated with post-use equipment management and reprocessing. Having previously supplied image sensors for multi-use endoscopes, Sony is now broadening its product lineup to target disposable endoscope applications amid growing market interest, thereby aiding the development of endoscope technologies engineered to satisfy demands for enhanced visibility, better operability, and minimized invasiveness.