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Microfluidic Circulation System (Liquid)

Microfluidic Circulation System (Liquid)

Other brands of liquid sample tables commonly used in the market, due to the restriction of their own liquid pool chip design scheme, can only push the large flow of liquid through the sample table and the peripheral area of the chip through the huge pressure generated by the liquid pump, which has the security risk of a large amount of liquid leakage. The liquid enters the nanopore channel in the middle of the chip mainly by diffusion effect, and there is no real flow rate control in the chip observation window. Different from this, our company uses microfluidic technology, through the piezoelectric microcontrol system for fluid differential control, to achieve micro upgrade of micro fluid transport, each liquid push process, the liquid microfluidic circulation system and sample table in the amount of redundant liquid only slightly up, effectively ensure the safety of electron microscopy. Compared with O-ring sealing, the polymer membrane surface contact sealing technology increases the sealing contact area and effectively reduces the leakage risk. On the touch screen control panel, there are two optional modes: set flow rate and set flow rate, which can quickly and easily change the liquid flow rate, control the liquid layer thickness and other experimental conditions. From confirmation of the change condition to stabilization, the time can be controlled within 10 seconds. Static closed working mode can also be selected on the touch screen control panel. The material of the fluid pipe is PTFE or PEEK non-metallic pipe, which is inert to most fluids to avoid contamination of the fluid sample and ensure that no other foreign matter is introduced into the experimental environment.

Eletron Microscope Flange

Eletron Microscope Flange

When replacing the fluid pool chip with a static pool chip, you do not need to remove the flange, but only need to replace the flow channel hole plug. The liquid thermoelectric in situ sample station can be connected with the mainstream electrochemical workstation through the flange to perform electrochemical impedance spectroscopy, cyclic voltammetry, chronocurrent method, cyclic polarization, charge-discharge curve analysis.

SEM High Vacuum Leak Checking Station

SEM High Vacuum Leak Checking Station

It is composed of a visual high vacuum leak detection chamber and a high vacuum pre-pumping system, which simulates the internal environment of the electron microscope, and can quickly check the tightness of the sample table and MEMS chip to ensure the safety of the electron microscope. Limit vacuum ≤8×10-7 hPa, leak detection operation vacuum ≤5.4×10-6 hPa.

Thermal Controller

Thermal Controller

The temperature controller customized for the electron microscope customer is adapted to the in-situ micro-zone heating chip of our company, and the micro-zone of the in-situ heating chip is heated and controlled by electric heating. The heating chip and the high-frequency feedback temperature controller are transmitted through the electrical connection unit for high-frequency temperature signals. The high precision and high frequency output, reception, feedback and adjustment of temperature signal are realized through the high precision temperature control program, so as to carry out the process of program heating and cooling.

Electrochemical Work Station

Electrochemical Work Station

Environment Gloves Box（Ⅰ/Ⅱ/Ⅲ）

Environment Gloves Box（Ⅰ/Ⅱ/Ⅲ）

Water vapor can be pumped into the cabin to achieve saturated vapor pressure when the chip is injected liquid (aqueous solution), and inert gases such as nitrogen and argon can be combined with the cabin to improve the success rate of chip injection and improve the experimental efficiency. The size of the chip environment sample bin can be customized by customers.

High-precision Chip Assembly Instrument

High-precision Chip Assembly Instrument

The high-precision chip assembler is used for the alignment package of the upper and lower chips of the chip. It has multi-dimensional motion functions such as xyz and rotation, which can realize the precise bonding of the upper and lower chips with "0" error and the external packaging operation. The independently adapted vacuum sample shifter can ensure the safe movement of the chip, prevent drops, and reduce chip damage. The high-resolution digital microscopy system is composed of an autofocus camera, a digital display screen, a high-resolution microscope, and a coaxial light source. It has the functions of taking photos and recording videos, and the resolution is better than 1 micron.

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