摘要:
Provided is a vertical semiconductor light-emitting device and a method of manufacturing the same. The method may include sequentially forming a lower clad layer, an active layer, and an upper clad layer on a substrate to form a semiconductor layer and forming first electrode layers on the upper clad layer. A metal support layer may be formed on each of the first electrode layers and a trench may be formed between the first electrode layers. The substrate may be removed and a second electrode layer may be formed on the lower clad layer.
摘要:
A fuel cell system comprises: a fuel cell stack (100) where an anode (110) and a cathode (120) are arranged under a state that an electrolyte membrane is positioned therebetween; a fuel tank (300) for storing a fuel; a fuel circulation supply means (400) for circulation-supplying a fuel stored in the fuel tank (300) to the anode of the fuel cell stack; an air supply unit (200) connected to the cathode of the fuel cell stack (100) by an air supply line, for supplying oxygen, etc. to the cathode (120); a sensing unit (500) for measuring a concentration of at least one of fuels supplied to the anode (110) and a control unit for receiving a signal of the sensing unit (500) and informing replacement time of a fuel. According to this, a fuel usage is maximized by informing replacement time of a used fuel and a filter (450) for filtering impurity by detecting a fuel consumption degree and an impurity generation amount.
摘要:
A CMOS image sensor includes a photodiode, a switch configured to transfer a signal sensed by the photodiode to a sensing node, and a comparator electrically and directly connected to the sensing node and configured to compare the sensed signal of the sensing node and a ramp signal. Reset offset of the comparator is maintained at a constant offset voltage level during an initialization mode.
摘要:
A method for forming a semiconductor device includes forming a gate pattern over a silicon substrate, forming gate spacers over both sidewalls of the gate pattern, forming a dummy gate spacer over a sidewall of each one of the gate spacers, forming a recess region having inclined sidewalls extending in a direction to a channel region under the gate pattern by recess-etching the silicon substrate, filling the recess region with an epitaxial film, which becomes a source region or a drain region, through a selective epitaxial growth process, and removing the dummy gate spacer.
摘要:
Disclosed herein is a method for manufacturing a spaghetti food packaged in a retort pouch, comprising: (a) boiling dry spaghetti noodles in hot water; (b) cooling and dehydrating the boiled spaghetti noodles; (c) spraying oil over the dehydrated spaghetti noodles; (d) packing the oiled spaghetti noodles in a retort pouch; and (e) subjecting the packed spaghetti noodles to multiple retort sterilization under predetermined temperature, time and pressure conditions. The spaghetti noodle product can be stored at room temperature for 12 months or longer without germ growth therein and can be instantly cooked al dente only by microwaving rather than by boiling in water.
摘要:
An apparatus and method determines neighbor Base Station (BS) information in a wireless communication system where a macro cell and a Femto cell coexist. The method includes, when a preamble scanning duration arrives, acquiring preamble information on at least one neighbor BS through preamble scanning. It is determined whether to scan a header for at least one neighbor BS among neighbor BSs for which the preamble information are acquired, in consideration of at least one of the acquisition or non-acquisition of new preamble information through the preamble scanning and a variation of an environment of a preamble acquired through the preamble scanning. And, in case that it is determined to scan the header, a header for a corresponding neighbor BS is scanned and header information of the neighbor BS is acquired.
摘要:
A semiconductor device having a recessed active edge is provided. The semiconductor devices include an isolation layer disposed in a substrate to define an active region. A gate electrode is disposed to cross over the active region. A source region and a drain region are disposed in the active region on both sides of the gate electrode. A recessed region is disposed under the gate electrode and on an edge of the active region adjacent to the isolation layer. A bottom of the recessed region may be sloped down toward the isolation layer. The gate electrode may further extend into and fill the recessed region. That is, a gate extension may be disposed in the recessed region. A method of fabricating the semiconductor device is also provided.
摘要:
A process of preparing a radioactive compound containing a fluorine-18 isotope is provided. In one embodiment, the process may comprise forming a [18F] fluoroalkyl triflate by triflating a [18F] fluoroalkyl compound with AgOTf, and forming a [18F] fluoroalkylated radioactive compound through alkylation between the [18F] fluoroalkyl triflate and a radioactive compound precursor having at least one group selected from NH, OH and SH.
摘要:
The present invention relates to a process for preparing electrode catalyst materials for a polymer electrolyte membrane fuel cell (PEMFC), and particularly to a high-performance platinum-non-platinum mixed electrode catalyst (Pt—RuOs/C) having a physically mixed structure of RuOs alloy and platinum materials, which is prepared by adding a small amount of platinum (Pt) to RuOs alloy materials highly dispersed on a carbon support, where the amount of platinum used is drastically reduced as compared to the conventional platinum materials, thus lowering the manufacturing cost.
摘要:
A method of providing a call transfer service and a mobile terminal using the same are provided. When a call connection request signal transmitted to a mobile communication server through a PSTN is received, any one of previously stored phone numbers is selected and a service of transferring a call to the selected phone number according to the received call connection request signal is requested. Therefore, when call connection is requested, it is selected whether a call is to be transferred, when a call is transferred, a phone number to transfer a call can be dynamically selected according to a user situation, and thus user convenience according to call transfer can be improved.