More than 500 million pieces have been shipped in total! Many amplifiers of this domestic manufacturer can be calibrated to TI
Time:2022-09-17
Views:1713
Source: Core Bugs Author: Joey
Analog chip is a bridge connecting reality and virtual, and is an important part of semiconductor industry. Because of its slow product iteration, long life cycle and long-term experience accumulation, the industry has always been known as "one year digital, ten years analog".
Recently, the reporter from the column of Core Bugs "Entering the Industrial Chain" interviewed Zhang Zhicai, the general manager of Juxun Semiconductor Technology (Shanghai) Co., Ltd. (hereinafter referred to as "Juxun Semiconductor"), a leading domestic operational amplifier manufacturer. Discuss the current development of Juxun Semiconductor and its prospects for the future development of the industry under the background of accelerated development of domestic substitution of signal chain analog chips.
The cumulative shipment has exceeded 500 million pieces! It has entered the supply chain system of BYD, Xiaomi and other manufacturers by virtue of its comprehensive category advantages
It is understood that Juxun Semiconductor, founded in 2016, is a global chip design high-tech enterprise, focusing on the R&D, design and sales of high-performance, high-quality analog and mixed signal products. At present, the company has operational amplifiers, comparators, analog switches, analog-to-digital converters and other product lines, which are widely used in communication networks, consumer electronics, industrial control, automotive electronics, the Internet of Things and many other fields. Its cumulative shipment has exceeded 500 million.
"The company‘s products are mainly signal chain analog chip operational amplifiers, and gradually expand to converters, interface product chips and power management chips. After years of development, we now have more than 100 product models available for sale, and the performance of many products has reached the international leading level. With excellent comprehensive performance, the company‘s products have entered Xiaomi, Midea, Galanz, Yingqu Technology, Xinwangda, and Shiyuan , Scud, Kangtai Medical and many other well-known customers‘ supply chain systems. " Zhang Zhicai introduced to the reporter.
Major downstream cooperative customers of Juxun Semiconductor
Source: Juxun Semiconductor
As the main product of the company, operational amplifier (referred to as "operational amplifier") is an electronic integrated circuit containing multi-stage amplification circuit. In the actual circuit, it is usually combined with the feedback network to form a functional module. Its input stage is a differential amplifier with high input resistance and the ability to suppress zero drift; The intermediate stage is mainly used for voltage amplification, with high voltage amplification, which is generally composed of a common emitter amplifier circuit; The output pole is connected with the load, which has the characteristics of strong load carrying capacity and low output resistance.
At present, there are many kinds of op amps, including high-speed op amps, low-noise op amps, low-voltage low-power op amps, high-voltage general-purpose op amps, low-voltage nano ampere op amps, zero drift op amps, low-power op amps, high-precision general-purpose op amps, etc., which are widely used in many fields of the electronic industry.
"Signal amplification is the most common function of analog signal processing, which is generally realized by connecting operational amplifiers into dedicated amplification circuits. At present, we are a rare manufacturer of operational amplifiers with complete products in the industry. The operational amplifier products that have been mass produced include low-noise operational amplifiers, zero drift operational amplifiers, high-speed operational amplifiers, low-power operational amplifiers, nano amp operational amplifiers, etc. In addition, high-voltage high-precision operational amplifiers have entered the trial production stage." Zhang Zhicai said, "As the main product of the company, the annual shipment of Yunfang is more than 100 million, and the cumulative number of customers has exceeded 1000. The major customers are BYD, Xiaomi, Unilever, Gaobiao, etc."
Juxun Semiconductor has mass produced products
Source: Juxun Semiconductor
In terms of zero drift operation, Juxun Semiconductor mainly adopts TSMC‘s advanced CMOS process and new chopper circuit structure design, which can provide extremely low input offset voltage, and the input offset voltage is close to zero drift with time and temperature changes.
Taking GS83XX/GS85XX series products as an example, the maximum offset voltage of GS833X series is only 10 μ 5. Offset voltage drift max. 0.03 μ V/℃； The maximum offset voltage drift of GS85XX series is 0.03 μ V/℃, and built-in anti RF interference function. These high-precision, low quiescent current micro amplifiers can provide high impedance input (common mode range exceeds power rail voltage by 100mV) and rail to rail output (swing is less than power rail voltage by 50mV), and can use single or dual power supplies as low as 1.8V (± 0.9V) and as high as 5.5V (± 2.75V).
Zhang Zhicai pointed out that: "Since the epidemic, the forehead temperature gun, like the mask, has become a hot product in the market, and many manufacturers have begun to enter the market. At present, there are many kinds of forehead temperature gun schemes, such as SoC scheme, digital sensor scheme and general MCU+high-precision op amp scheme. Among them, the general MCU+high-precision op amp scheme is relatively easy to mass produce, and other schemes are now facing the defect of insufficient capacity. The company‘s zero drift op amp temperature drift The maximum value is 50nV/° C, and the input offset voltage Vos has a maximum drift of 0.95uV within the temperature range of the national standard, which is far less than the national standard of 16uV. At present, it has been widely used in the forehead guns of Jingbei Medical, Kangtai Medical, Floatable Medical and other manufacturers. "
In terms of low-voltage and low-power operational amplifiers, GS600X series is the representative, which is specially designed for various low-voltage general-purpose applications. This series of amplifiers has a gain bandwidth product of 1MHz, with a minimum operating voltage of 1.8V and a voltage conversion rate of 0.8V/ μ s. The static current under 5V supply voltage is only 75 μ A. In addition, the amplifier is integrated with anti RF interference function.
Low voltage low power operational amplifier GS6001
Source: Juxun Semiconductor
With the continuous reduction of circuit power supply voltage, low voltage operational amplifier design is becoming a research hotspot. According to Zhang Zhicai, Juxun low-voltage low-power operational amplifier chips include single channel GS6001, dual channel GS6002, four channel GS6004, etc., which can be used in sensor interfaces, smoke detectors, medical instruments and portable systems. Among them, the minimum operating voltage of GS6001 can be as low as 1.8V. This new rail to rail low-voltage operational amplifier has a great competitive advantage over its peers in terms of cost, and can be used in applications such as Internet of Things sensing devices, portable instruments and meters, smart homes, etc.
It is worth mentioning that with the technical breakthrough and application innovation in IC design, the product "Low voltage and low power consumption operational amplifier GS6001" of Juxun Semiconductor won the ASPENCORE "2021 China IC Design Achievement Award" annual best amplifier/data converter, which fully demonstrates the high recognition of Juxun products by customers and the market.
In addition, in terms of low-voltage and low-noise operational amplifiers, the GS8634 product of Juxun Semiconductor has entered the intelligent controller supply chain system of No. 9 Company‘s two wheeled vehicles by virtue of its excellent performance. It is understood that the GS8634 has a 6MHz high gain bandwidth product, 4.2V/ μ S conversion rate, 13nV/√ Hz noise. Among them, high bandwidth gain and low noise can ensure the accuracy of current detection to ensure the normal operation of the whole system and provide high-quality performance.
The signal chain chip ushers in the golden age of domestic substitution, and Juxun Semiconductor can benchmark many of the same type of operational amplifier products of Texas Instruments
It is well known in the industry that analog chips refer to chips that process continuous physical quantities such as light, sound, electricity/magnetism and natural analog signals such as temperature. They are mainly composed of power management chips and signal chain chips according to product types. Among them, the signal chain chip refers to the integrated circuit that has the ability to transmit, transmit, convert, amplify and filter analog signals, accounting for about 47% of analog chips.
Benefiting from a longer life cycle and more decentralized application scenarios, the market of signal chain analog chips has enjoyed a good development trend in recent years, and the industry scale has grown steadily. According to WSTS data, the global signal chain chip sales will be about 34.829 billion dollars in 2021, and it is expected to grow to 45.175 billion dollars by 2023. China is the world‘s major signal chain chip market, with the market scale accounting for about 1/3 of the global market.
From the perspective of the competition pattern, the market share of the global signal chain chip is roughly the same as that of analog chips. Texas Instruments, Adelaide Nuovo, Scarlett, Infineon, Italy France Semiconductor, NXP, Maxine, Anson, Microchip and Renesa Electronics together account for about 63% of the market share of the global market. Among them, Texas Instruments, as the leading enterprise in the industry, has more than 80000 products, accounting for 19% of the global market share, and is the absolute leading enterprise in the field of signal chain and even analog chips.
Source: IC Insights; Core starling finishing
In terms of domestic market, signal chain chip manufacturers mainly include Simbond, SRIPP, Huiding Technology, Xinhai Technology, etc. At present, domestic products are still in the low-end field, mainly in the field of amplifiers, comparators, and interface chips. The product homogeneity is serious, and there is less involvement in high-end ADC, high-frequency devices, base station signal link chips and other fields. In addition, domestic factories are small in commodity category and scale, lacking the ability of overall serialization solutions.
Zhang Zhicai pointed out that: "From the perspective of the industrial chain, as the local enterprises have long been positioned at the downstream of the signal chain chip, there is still a huge gap between the domestic manufacturers and the signal chain chip giants, such as Dezhou Instruments, Adeno and other international manufacturers. Juxun Semiconductor has a relatively complete range of products in the signal chain field, and its technical level is at the leading domestic level. It is one of the few domestic companies that can directly compete with global well-known companies in the same industry, and has broken through overseas technologies in key areas Technology monopoly. "
The Bugs on Chip reporter noticed that although China‘s signal chain chip market has accounted for 1/3 of the global market, the self-sufficiency rate is only about 12%, and there is a huge gap between the production and manufacturing of chips and their own consumption. In addition, due to the highly decentralized characteristics of the signal chain chip market, one or two companies cannot achieve full monopoly. Even if it is as powerful as Texas Instruments, its market share will be only 19% in 2021, which undoubtedly provides a favorable development opportunity for Chinese manufacturers.
With the increase of domestic substitution demand, with the support of policies and capital, China‘s signal chain chip enterprises have entered the golden period of development, and relevant products have been continuously verified and introduced by downstream key customers.
"There are many kinds of signal chain chips, and each segment has a dominant position. For example, Texas Instruments has the first market share in the amplifier market, but Infineon has a large advantage in the power chip market. On the whole, there is no single enterprise that has a dominant position in all signal chain segment markets, so there is still a lot of development opportunities for domestic alternatives to the segment track. At present, our amplifier products can benchmark Texas Similar models of instruments can be compared with them in terms of performance and power consumption, while they can be made cheaper. " Zhang Zhicai emphasized.
Compared with the IDM model adopted by international giants, the Fabless model does not need to invest too much capital in building plants and purchasing equipment. Therefore, domestic signal chain chip manufacturers are expected to accelerate their development by continuously increasing R&D investment and asset light Fabless model, and gradually narrow the gap with international leading manufacturers.
"At present, we use TSMC‘s wafer foundry and Changdian Technology‘s packaging test to ensure the advancement of the company‘s product process technology and packaging technology." Zhang Zhicai said, "In terms of sales network, the company‘s distribution channel has a dual approach online and offline, and Juxun Semiconductor products are available in Huaqiang Mall (www.hqbuy. com) and other channels."
Major partners of Juxun Semiconductor Industry Chain
Source: Juxun Semiconductor
In order to speed up the pace of development, Juxun Semiconductor has taken frequent actions in the capital market in recent years. In 2022, Yujie Electronics successfully acquired Juxun Semiconductor and became a major shareholder of the company. As a leading automotive sensor chip supplier in China, many types of automotive sensor chips have been successfully mass produced and shipped in Ningde Times, Volkswagen, SAIC, Baolong Technology, Sany Heavy Industry and other major customers.
Juxun and Jujie Electronics jointly developed vehicle specification level simulation products
Source: Juxun Semiconductor
Zhang Zhicai said: "This cooperation between Juxun and Jujie Electronics belongs to a strong alliance. Both parties are speeding up the pace of research and development of car gauge level simulation products. At present, many car gauge chips are under AEC-Q100 certification. In the future, Juxun will join hands with Jujie Electronics to speed up product research and development, and integrate internal resources in the automotive electronics, industrial and energy storage markets to provide customers with battery pack sensing, tire pressure monitoring, signal conditioning, wireless sensing, wireless communication, and power management , signal chain products and other overall solutions, as well as full life cycle support and services, strive to become the leader in the domestic semiconductor industry. "
epilogue
Compared with digital chips, analog chips have the characteristics of complicated application fields, long life cycle, long personnel training time, low price but stable, and closer coordination with the manufacturing process. Based on these characteristics, products, customers and talents need to simulate the long-term accumulation of enterprises, which is the main source of their long-term competitive advantages.
Since its establishment, Juxun Semiconductor has always adhered to the continuous innovation of technology and products, and constantly increased R&D investment to expand product categories and iterative upgrading to meet various needs of analog chips in various downstream market segments. It is believed that the company will further improve the competitiveness of its products in the market to achieve steady growth in scale and profits after cooperating with Yujie Electronics.
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