Shiguangxinke: Solve the pain points of the lidar industry and promote the localization of high-performance SPAD chips
According to Jiweiwang news, there are very few companies in the world that have experience in mass production of area array SPAD chips, and Shiguang is one of them.
Shiguang focuses on highly integrated, full-chip, fully digital SPAD-SoC, targeting terminal applications such as autonomous driving, robots, and XR.
Through full-chip and fully digital system-on-chip integration, Shiguang integrates high-performance back-illuminated SPAD array, high-precision clock sampling matrix, single-photon ranging engine, high-concurrency dToF perception algorithm accelerator, lidar control unit and high-speed data interface, etc. Key modules are integrated into a single chip, realizing fully digital data collection and real-time on-chip processing of massive data, thereby greatly simplifying the system structure and helping lidar break through existing boundaries in terms of performance, appearance, reliability and cost. To ultimately realize the widespread application of three-dimensional perception.
Shiguang has successful experience in scarce capabilities such as devices, digital, area array, car specifications, and mass production. Core members have led the design of the world's first large area array SPAD chip for automotive lidar; the person in charge of each subsystem is He comes from the top Silicon Valley chip R&D team or international authoritative scientific research institutions, and has participated in the research and development of various large-scale chip projects.
Key technologies and innovation points:
1. Integrated sensing, computing and storage, highly integrated into chips
The light-recognizing SPAD-SoC integrates sensing (high-performance back-illuminated SPAD array, high-precision clock sampling matrix), computing (high-concurrency dToF sensing algorithm accelerator), and storage (single photon ranging engine) units into the same chip. so that the data transmission between modules is not limited by the bandwidth and delay between discrete chips.
2. Full digitalization
The fully digital architecture is recognized as the next generation lidar architecture. In the highly integrated SPAD-SoC solution for light recognition, photons enter the lidar and are converted into electrical signals, followed by subsequent data processing and point cloud presentation. , the entire process is digital, which solves the loss and distortion caused by the existing secondary conversion of digital to analog, resulting in a higher signal-to-noise ratio and higher accuracy.
3. 2D addressing
It supports 2D addressing scanning, with smaller partitions and lower crosstalk effects between different pixel channels in the same partition. It solves the industry's long-standing pain point of "high anti-pollution" and maintains high frame rates and long detection distances at the same time.
4. More than just imaging
Based on SPAD's infinite gain and single-photon detection capabilities, the light-recognizing SPAD-SoC has the characteristics of high-speed and low-light imaging; it can output 2D and 3D data at the same time, and can output a fixed resolution in real time without the need for a camera or post-processing of the data. depth image, signal image and environment image.
Shiguang SPAD-SoC has laid out intellectual property rights in multiple directions such as chip architecture, digital circuits, and SPAD devices. In terms of customer applications, it is mainly for autonomous driving applications, covering short, medium and long-range detection, and can be used for both forward long-range lidar and short-range blinding lidar to help realize ADAS, L4 and above autonomous driving; it is also targeted at robots , industrial automation and other applications.
A strong team provides unremitting motivation for Shiguang's continuous breakthroughs. Shiguang is also a pioneer in the VCSEL+SPAD lidar technology route. With its unique ability to define and optimize the SPAD-SoC chip architecture from the perspective of the lidar system, it has overcome the technical hurdles of highly integrated chips in the field of lidar and shortened development. Achieving optimal performance, efficiency and cost at the same time makes it possible to fully popularize lidar. The accumulation of SPAD technology routes gives Shiguang a leading advantage globally.
So far, Shiguang has completed angel round and Pre-A round financing of nearly 100 million yuan, and has won many honors..
Relying on the team's overall R&D capabilities, as well as its scarce technology and experience accumulation in SPAD devices, digital design, automotive mass production, and complete lidar machines, barriers to light recognition competition are constantly being established. At the same time, relying on Chiguang's strong engineering capabilities and rapid product iteration capabilities, Chiguang will bring more breakthrough SPAD-SoC chip products to the entire industry in the future.