Wuxi Guanya Refrigeration Technology co., ltd

Control method for semiconductor test chiller to meet temperature requirements

The biopharmaceutical field requires high-precision temperature to control the activity of enzymes and the production of products; the chemical industry field requires specific temperatures to make chemical reactions proceed stably; the electronics manufacturing field needs to provide a constant temperature environment for various electronic components to make them stable Work and achieve better performance, such as: quartz crystal oscillator, electronic linear accelerator, etc.

Although there are many domestic manufacturers of temperature control equipment, there are very few semiconductor test chiller independently developed, especially in high-precision measurement and control. Semiconductor test chiller manufacturers have developed a method that takes into account high accuracy, high stability, and wide adjustment. The range of high-power temperature control systems is significant.

There are currently two types of direct cooling and indirect cooling.

The direct cooling method is a method in which the cooling unit directly cools the circulating water. First, the temperature sensor collects the temperature value to the temperature controller, and then after a specific control algorithm, the temperature controller controls the refrigeration unit and the heating unit to perform cooling and heating processes, respectively, so as to control the temperature near the set value. When the temperature of the circulating water deviates from the set value, the control system first performs cooling or heating processing. After the temperature of the circulating water enters the set threshold range, the temperature of the circulating water is gradually stabilized by fine-tuning the cooling and heating power.

The temperature control method directly controls circulating water, has high temperature control accuracy, and can be used under low temperature conditions; the disadvantage is that the system structure and control program are complicated.

The indirect cooling method is generally a temperature adjustment method by adjusting the flow ratios of the circulating water at two different temperatures and mixing to obtain the required water temperature. The mixing process is mainly achieved by adjusting the opening of the electric three-way valve. First, the temperature sensor detects the temperature of the two circulating waters respectively, and transmits the temperature value to the temperature controller, and then the temperature controller controls the opening of the electric three-way valve according to a specific control algorithm, that is, the two different temperature waters are controlled. The mixing ratio is more than the circulating temperature of the required temperature.

Semiconductor test chiller heat exchanger is a widely used indirect cooling device in modern industrial production, which can realize heat transfer between two or more fluids with different temperatures, so that the temperature of high temperature fluid or low temperature fluid can meet the process requirements. During the work of the heat exchanger, different heat exchange power and heat exchange efficiency are achieved by adjusting the flow rate of the medium or refrigerant. This kind of equipment has a large heat exchange power, usually hundreds of kilowatts or more, and is bulky and difficult to integrate and transport.

LNEYA's LL series is a chiller specially developed for the field of electronics production testing. This equipment is mainly used for cooling the heating part of semiconductor manufacturing equipment, cooling the heating part of laser devices, and analyzing the heating part of detection devices. The latest upgrade is not only for cooling but also for heating. The temperature control range can reach -5 ° C to 85 ° C, which improves the performance of precision cooling water circulation equipment and expands the application range of the equipment.
Related News
  • 2020 CPhI China The 20th World Pharmaceutical Raw Materials China Exhibition

    2020 CPhI China The 20th World Pharmaceutical Raw Materials China Exhibition

    December 17, 2020December 16-18 Booth number: W5P08 Shanghai New International Expo Center (Pudong)view
  • 483Meet Your Dream Equipment for Distillate CBD Extraction

    483Meet Your Dream Equipment for Distillate CBD Extraction

    February 6, 2021If you need equipment to distill CBD, you need to scrutinize your choices, as the equipment can vary in its features and design. When you use equipment that produces a CBD distillate, you want to seek out a system made by a manufacturer that provides proven and reliable products. You should also work with a business that can train you on the use of the equipment you buy.view
  • Won the second place in the 2022

    Won the second place in the 2022

    December 5, 2022On November 18, 2022, it was sponsored by the Jiangsu Provincial Association for Science and Technology, the Provincial Taiwan Affairs Office, the Provincial Department of Industry and Information Tec...view
  • LNEYA won the title of Jiangsu Provincial Gazelle Enterprise in 2022

    LNEYA won the title of Jiangsu Provincial Gazelle Enterprise in 2022

    January 13, 2023Recently, the Jiangsu Provincial Productivity Promotion Center officially released the evaluation results of the unicorn enterprises and gazelle enterprises in 2022 in Jiangsu and the high-tech zone, ...view
  • Approaching LNEYA 5 Main Products

    Approaching LNEYA 5 Main Products

    January 11, 2018Industrial Chiller:Industrial Chiller varies from dynamic temp. Special Chiller:Special Chiller consist of Multi-reactor chiller (TCU).Environmental Chamber:The test object is connected to a testing adapter. Industrial Freezer:Industrial freezer consist oview
  • The Analysis Of Ultra Low Freezer'S Price

    The Analysis Of Ultra Low Freezer'S Price

    July 4, 2018What are the characteristics and functions of ultra low freezer: 1. Ultra low freezer can prevent the precision of machine equipment from being influenced by the change of oil temperature in the proce...view
Related Products
  • SLJ -110℃~-150℃

    SLJ -110℃~-150℃

    January 11, 2018Temperature ranges from - 5 ~ - 150 ℃, can meet different temperature; Adopt environmental protection refrigerants; Famous brand semi-closed piston compressor, semi-closed bipolar piston compressor, semi-hermetic screw compressor, main brand are BOCK.view
  • Single Fluid Heat Transfer System SR

    Single Fluid Heat Transfer System SR

    April 10, 2018Working temperature range from -25℃to 200℃, other temperature range need to set to the widest temperature range(-50℃to 250℃) Centralized control of 2~20 reactors, each reactor's and jacket temperature can be set independently. One system control multipleview
  • Reactor Temperature System ZLF

    Reactor Temperature System ZLF

    April 10, 2018A set of cooling heat exchanger, heat exchanger, through proportional adjusting valve control cold heat into the heat exchanger, then through the uniform medium input to the reactor jacketed to do heat exchange and temp. Control, system has inside expansiview
  • LT -45℃~30℃

    LT -45℃~30℃

    April 10, 2018Low Temperature Cooling Chiller LT model: LT-5018N,LT-5040N,LT-5062N,LT-5090N,LT-50A1N,LT-50A2N;view
  • TES -45℃~250℃

    TES -45℃~250℃

    February 28, 2019-45℃~+200℃ 2.5kW~25kW ±0.3℃view
  • TES  -85℃~200℃

    TES -85℃~200℃

    February 28, 2019Temperature control range:-85 ° C ~ 200 ° CPower range:2.5kW~25kWTemperature control accuracy:±0.3°CModelTES-8525WTES-8555WTES-85A10WTES-85A15WTES-85A25WTemp. Range-85℃~200℃-85℃~200℃-85℃~200℃-85℃~200℃-85℃~200℃Heating P...view
products
Contact US
Tel: + 86 18751545184
E-mail: sales@cnzlj.com
Add: No.203, Hongyun Road, Hongshan Street, Optoelectronics Park, Xinwu District, Wuxi City, Jiangsu Province, China
code chat