This article compares Frequency Modulated Continuous Wave (FMCW) and Time of Flight (ToF) for LiDAR. In summary, FMCW is better in longer term but ToF is still better now. What are FMCW and ToF? Lidar can take on several different modalities, which can be classified by their dependence on incoherence or coherence of the laser…

3D sensing iToF vs. dToF

Figure 1. Apple’s promotion of DTOF

Kunihiro Hatakeyama et al. of Toppan Inc. and Brookman Technology Inc. (Japan) published an article titled “ A Hybrid ToF Image Sensor for Long-Range 3D Depth Measurement Under High Ambient Light Conditions” in the IEEE Journal of Solid-State Circuits. Abstract: A new indirect time of flight (iToF) sensor realizing long-range…

Canon develops CMOS sensor for monitoring applications with industry-leading dynamic range, automatic exposure optimization function for each sensor area that improves accuracy for recognizing moving subjects TOKYO, January 12, 2023-Canon Inc. announced today that the company has developed a 1.0-inch, back-illuminated stacked CMOS sensor for monitoring applications that achieves an…

According to Gartner, the top 10 global original equipment manufacturers (OEMs) decreased their chip spending by 7.6% and accounted for 37.2% of the total market in 2022. Global inflation and recession pressures sharply weakened demand for PCs and smartphones in 2022, impacting global OEMs production. Most of the top 10 semiconductor customers are major PC and smartphone OEMs. All top 10 companies in 2021 remained in 2022, with Apple and Samsung Electronics retaining the top two spots. Only Samsung Electronics and Sony increased their chip spending in 2022. (CN Beta, Gartner)

According to Strategy Analytics, the global smartphone user base will grow by 11% from 2023 to 2027. The global penetration rate of smartphones will continue to rise steadily. In the short term, it is due to the growth stimulated by the demand for home office during the epidemic, but the…

Intel’s CEO Patrick Gelsinger has made 4 commitments: One, deliver on 5 nodes in 4 years, achieving process performance parity in 2024 and unquestioned leadership by 2025 with Intel 18A. Two, execute on an aggressive Sapphire Rapids ramp, introduce Emerald Rapids in 2H23 and Granite Rapids and Sierra Forest in…

The science of creating pixels has made substantial progress in recent years. As a rule, high resolution image sensors need small, light-sensitive pixels. To capture as much light as possible, the pixel structure has evolved from front-side illumination (FSI) to a back-side illumination (BSI). This places the photodiode layer on…