摘要:
Disclosed herein is an air conditioner having a single oil separator mounted on a confluent discharging channel, to which are connected discharging channels provided at a plurality of compressors, and an electronic expansion valve, of which the opening level is controllable, mounted on an oil collection pipe connected to the oil separator. As a result, the number of the oil separators is decreased. Consequently, the present invention has the effect of simplifying the structure of the air conditioner and reducing the manufacturing costs of the air conditioner. Furthermore, refrigerant is bypassed by controlling the opening level of the electronic expansion valve to control the flow rate of the refrigerant. Consequently, the present invention has the effect of eliminating an additional bypassing device, and therefore, simplifying the structure of the air conditioner and the controlling method of the air conditioner.
摘要:
An electrode assembly and a lithium ion secondary battery using the same capable of preventing a short circuit from being created in an outer peripheral portion of the electrode assembly. Uncoated areas of positive and negative electrode plates and an active material layer in the inner and outer peripheral portions of the electrode assembly are optimally aligned such that the thickness of the electrode assembly is uniformly formed widthwise along the electrode assembly.
摘要:
Methods of fabricating a MIM capacitor and a dual damascene structure of a semiconductor device are disclosed. A disclosed method comprises forming a first conducting material as a lower interconnect on a semiconductor substrate; sequentially depositing second and third insulating layers over the first conducting layer; performing a first damascene process to form via holes and a trench within the second and the third insulating layers; filling the via holes and the trench to form a first contact plug connected to a lower interconnect and a second contact plug to contact the lower electrode of a MIM capacitor; forming the MIM capacitor over the second contact plug; sequentially depositing fourth and fifth insulating layers over the entire surface of the resulting structure; performing a second damascene process to form a via hole and a trench within the fourth and the fifth insulating layers; and filling the via hole and the trench to form a contact plug in contact with the upper electrode of the capacitor and another contact plug connected to the lower metal interconnect.
摘要:
Semiconductor devices and methods of making the same are disclosed. According to one example, a semiconductor device having dual spacer may include a semiconductor substrate, a gate oxide film and a gate poly provided in a device region of the semiconductor substrate, a halo/pocket implant region formed in a region of the semiconductor substrate by which the gate poly is defined, and an inner spacer formed at a side wall of the gate poly for defining the width of a lower portion of the gate poly. The semiconductor device may also include an outer spacer formed at the side wall of the gate poly for defining the width of an upper portion of the gate poly, source/drain regions provided on the semiconductor substrate under the gate oxide film, and a salicide film provided on surfaces of the gate poly and the source/drain region.
摘要:
A method of measuring skin moisture content, the method including: measuring a differential rate of a skin impedance of a predetermined skin area of a user for a predetermined period of time; and determining that the skin area is a moist area when the differential rate of skin impedance is greater than or equal to a predetermined value for a predetermined period of time, and determining that the skin area is a dry area when the differential rate of skin impedance is less than the predetermined value for the predetermined period of time.
摘要:
A waveguide PIN photodiode is provided. The waveguide PIN photodiode includes a lower light guide layer, a light absorption layer, an upper light guide layer, and a cladding layer. The lower light guide is formed on a substrate, and the light absorption layer is formed on the lower light guide layer. The upper light guide layer is formed on the light absorption layer, and the cladding layer is formed on the upper light guide layer. The lower light guide layer, the light absorption layer, and the upper light guide layer constitute a core layer, which is an optical waveguide, and graded index distribution is symmetrically formed in a depth direction, centering around the light absorption layer having a highest refractive index.
摘要:
Provided is an optical transceiver module of an optical transceiver, which is used for optical communications. The optical transceiver module prevents electrical crosstalk between a light source and a light receiver. Additionally, the optical transceiver module includes an optical transceiver unit including a light source and a light receiver together integrated into a substrate, a circuit unit including a drive circuit driving the light source and a detect circuit reading a signal of the light receiver, and a crosstalk prevention unit connected between the substrate and ground to prevent electrical crosstalk between the light source and the light receiver.
摘要:
A portable display device having improved durability includes: a mold frame mounting a first display panel and a back light assembly thereon; at least one printed circuit board, arranged on one surface of the mold frame, to supply control signals to the first display panel; and a protruding portion, surrounding and wrapping at least two sides of the at least one printed circuit board, and extending from at least two side surfaces of the mold frame, the at least two side surfaces of the mold frame being connected together.
摘要:
Disclosed are a semiconductor device and a method of fabricating the same. The semiconductor device includes an isolation layer on a semiconductor substrate, and an active area which protrudes from the isolation layer (and the substrate) and which has rounded edge portions; a gate insulating layer and a gate electrode on the active area; and source/drain impurity areas in the active area adjacent to sides of the gate electrode.
摘要:
A coating apparatus and an operating method thereof that prevent damage to the nozzle of a spinless coater from impurities on a substrate during resin coating of the substrate, and impurities remaining on a stage at the bottom of the substrate. The coating apparatus comprises a stage, a nozzle, a nozzle cleaner, and a stage cleaner. A substrate is placed upon the stage. The nozzle discharges resin on the substrate to perform coating. The nozzle cleaner cleans the nozzle. The stage cleaner cleans the stage. The operating method includes removing a coated first substrate from atop a stage, cleaning the stage using a stage cleaner, introducing a second substrate to be coated onto the cleaned stage, and discharging resin through a nozzle onto the second substrate and coating the second substrate.