People pursuit of images has never stopped, this makes the noisy image sensor industry in recent years.From last year when it bought the majority ansion beauty;By the SONY announced this year will be gradually stopped before March 2017 CCD grain film sensors, which will into stronger CMOS sensor research and development, and starting from April SONY IMX214 laminated type CMOS image sensor area out of stock, the whole trend of the mobile phone cameras in serious shortage of supply chain;OmniVision to recent acquisitions by Chinese institutions, the indications are that the rising demand for video image, the different application industry schlieren instrument image sensor industry is undergoing a technical evolution and innovation.In fact, the future market development of CCD and CMOS image sensor, has been able to see from the current planning of fabs answers.The image sensor are the biggest products such as mobile phone, tablet, notebook and so on are very useful to the CCD;Security market is the capital of the CCD originally, but starting in 2014 CCD a sharp contraction in the market."In the future must be a CMOS image sensor to account for the mainstream market position, CCD will grain shadow instrument to keep the existence of a certain proportion in some special industries such as aerospace, medical, military industry, monitoring industry).In terms of suppliers, SONY, samsung, and OmniVision dominates the high-end market share;Other important manufacturers include: ansion beauty majority, Toshiba of Japan, South Korea Hynix Hynix, local micro, thought than wonders photoelectric branch, byd, Taiwan, etc.Among them, some companies are quickly with high pixel CMOS image sensor (20 million pixels), so as to adapt to the trend of the development of the camera Gao Qinghua, regarding this, li xiang said that the design of the high pixel CMOS image sensor mainly face two challenges:1, technological aspects: 1.12 um and smaller pixel "through silicon light" (or "back exposure") manufacturing process, and the light-sensitive chips and peripheral circuit is divided into upper and lower layer stack of wafer process, etc.;2, design aspects, such as high-speed, high-speed high-performance RAMPADC circuit design MIPI channel design, power consumption problem brought by the circuit scale, and stack process of the lower level chip collaborative design, etc.
From the current market situation, in under 2 m and specifications of the products on the market, the domestic CMOS sensor has firmly occupy more than 80% of the share;In addition, 5 m product line have started to confrontation and international companies to share is growing;But there is no domestic company 8 m production line to realize commercial production.From the point of the above information, as domestic image sensor products from international companies and large gap, after all, the mainstream of 8 m / 13 m have no mass production, but actually not.In fact, in addition to the micro grid division, Beijing branch, byd microelectronics and other than are native of CMOS sensor industry in recent years.From the perspective of future development of the CMOS image sensor industry competition will be more reflected in the industry integration, resource integration, market control ability on the comprehensive strength of CMOS image sensor will toward the better photo experience, focus speed faster, more intelligent application experience.The dosage of CMOS image sensor's largest mobile phone market, at present is mainly used to take pictures of the static picture, and a growing demand for high resolution, basically above 8 million pixels achieve even more than the quality of the same digital camera., on the other hand, in addition to static photographs, video shooting and upload them to the application of network video clips also more and more, for example, now can take FullHD full hd video, but the future for 4 k2k ultra-high resolution as well as a variety of applications such as high-speed photography slow-motion replay function is the trend of The Times, accordingly, the application makes the CMOS image sensor in high resolution at the same time, also requires a high speed response ability.In terms of on-board camera, it is said that by 2016, the size of the market is expected to reach more than 80 million pieces per year.This area is the biggest main current needs VGA resolution of product, at present the mainstream of the application system is to simulate the interface, and there are some companies in the development of digital interface system products, such as HD (720 p, 720 pixels), Full - HD Full HD (1080 p, 2 million pixels), etc., and all products have to be has high sensitivity and wide dynamic range performance.And in the field of monitoring, compared to the past SONY CCD sensor pattern of unify the whole country, the development and generalization of the CMOS sensor can really carry the banner of security monitoring industry?In response, the industry said cautiously optimistic attitude.Veteran said, how can you get it ready CMOS chip related surveillance camera products, not a few words can say clearly, CMOS chip, the cost is low, the price is low, profits thin, combined with CMOS chip production is simple, there is not much technical content, which can lead to lower into the line of "threshold".In addition, CMOS chip is the most deadly and the most difficult to overcome difficulties must match the IR - CUT the double filter switcher, and over the years has been unable to cancel the grain shadow instrument, it also needs to be further enhance the performance of CMOS sensor.(source: esmchina)
