摘要:
A CMOS image sensor with improved sensitivity includes a main pixel array region of an active pixel array region formed on a semiconductor substrate. A passivation layer is formed over the sensor, and it is at least partially removed from the main pixel array region, such that incident light being detected by the main pixel array does not pass through the passivation layer. Optical absorption and refraction caused by the material of the passivation layer are eliminated, resulting in an image sensor with improved optical sensitivity.
摘要:
The present invention provides a method for preparing a nanoporous ultra-low dielectric thin film including a high-temperature ozone treatment and nanoporous ultra-low dielectric thin film prepared by the same method. The method includes preparing a mixture of an organic silicate matrix-containing solution and a reactive porogen-containing solution; coating the mixture on a substrate to form a thin film; and heating the thin film with an ozone treatment. The prepared nanoporous ultra-low dielectric thin film could have a dielectric constant of about 2.3 or less and a mechanical strength of about 10 GPa or more by improving a pore size and a distribution of pores in the thin film by performing an ozone treatment with high temperature and optimization of the ozone treatment temperature.
摘要:
It is possible to prevent that a liquid refrigerant is included in a refrigerant injected into a compressor. Accordingly, the risk of liquid compression of the compressor is greatly reduced, thereby decreasing the possibility of damage to the compressor and improving reliability and performance.
摘要:
An air includes: a compressor for compressing a refrigerant; an indoor heat exchanger for cooling or heating indoor with a refrigerant; an outdoor heat exchanger for exchanging heat of a refrigerant and outdoor air; an outdoor fan for ventilating outdoor air with the outdoor heat exchanger; a cooling/heating switching valve for switching cooling/heating; a first expansion device installed between the indoor heat exchanger and the outdoor heat exchanger; a CNT heater module installed between the outdoor heat exchanger and the cooling/heating switching valve to evaporate a refrigerant; a second expansion device installed between the outdoor heat exchanger and the CNT heater module; and a controller for sustaining a heating mode of the cooling/heating switching valve.
摘要:
In an air conditioning system, a first expansion device and a second expansion device playing a different role from each other are controlled in a different control method suitable for each role, thereby improving the performance and stability of the system. Furthermore, the control method for the first expansion device is differentiated according to the operation state of the air conditioning system, thereby improving the stability of the system. Furthermore, the intermediate pressure can be adjusted more rapidly and precisely according to the state of the air conditioning system by differentiating the control method for the first expansion device for adjusting the intermediate pressure depending on the degree of superheat of the refrigerant, thereby improving the stability and performance of the system. Furthermore, the first expansion device is gradually opened by controlling such that a change in opening degree may change according to the opening time of the first expansion device, thereby improving the stability of the system and achieving more stable switching of the control method for the first expansion device.
摘要:
The present invention relates to a production method for an ultra-low-dielectric-constant film, in which ratios are optimised in a mixed solution having a matrix consisting of a poly (alkyl silsesquioxane) copolymer and a porogen represented by Chemical formula 1, and in which this mixed solution is subjected to ultraviolet curing during a heat treatment. The ultra-low-dieletric-constant film of the present invention can be used as an intermediate insulating film for next generation semiconductors instead of the SiO2 dielectric films currently used, since pores of from 1 to 3 nm are uniformly distributed at from 10 to 30% and a very high degree of mechanical elasticity of from 10.5 to 19 GPa is achieved at a low dielectric constant from 2.12 to 2.4.
摘要:
An air conditioning system can improve the cooling/heating performance of the system because the injection of refrigerant into the compressor is achieved. The air conditioning system can further improve the cooling/heating performance in a low temperature region by injecting refrigerant as a two-phase refrigerant or a superheated vapor state into the compressor. The air conditioning system can prevent damage of the compressor and further improve reliability by controlling such that the ratio of a liquid refrigerant in the refrigerant injected into the compressor may be less than a set value.
摘要:
The present invention relates to a controlling method of an air conditioner. The controlling method of an air conditioner having a phase separator, an expansion valve, a control valve, an evaporator, a multistage compressor, and a condenser, includes the steps of sensing an order to operate the air conditioner, stabilizing the air conditioner, setting a degree of superheat of refrigerant in the air conditioner, and setting an optimum intermediate pressure of the refrigerant of the air conditioner.
摘要:
It is possible to prevent that a liquid refrigerant is included in a refrigerant injected into a compressor. Accordingly, the risk of liquid compression of the compressor is greatly reduced, thereby decreasing the possibility of damage to the compressor and improving reliability and performance.