As biology and cell carrier
Single window and window array TEM silicon nitride membrane are mainly used as a support film for TEM (transmission electron microscopy) sample holder to achieve high-resolution characterization of biological or material samples under electron microscope. It can also be used as a supporter for biological cells in TEM (transmission electron microscope), SEM (scanning electron microscope), AFM (atomic force microscope), Raman spectrometer and XRD (X-ray diffraction) equipment.
Micro porous windows are manufactured by advanced MEMS process, which enables substrate-free observation of nano tubes, 2D materials and other nano-samples. Compared with micro grid carbon films, micro porous silicon nitride membrane has cleaner surface and more uniform micro porosity, which is very suitable for high-resolution characterization of biological or material samples.
the minimum film thickness can be up to 10nm, silicon nitride membrane material absorbs less electron beam;
surface roughness <0.5nm, refocusing frequency can be reduced when the window is scaned in a large area;
can withstand the highest temperature of 1000℃;
the film is resistant to acid and alkali corrosion; under the action of electron beam, it is resistant to most chemicals;
no other structure in the membrane, Cu avoidance and C avoidance observation can be achieved;
piece-by-piece inspection under light microscopy, strictly control the quality;