摘要:
The present invention relates to a flame retardant resin composition for a printed circuit board and a printed circuit board using the same, in more detail, to a flame retardant resin composition which includes: (a) a complex epoxy resin (b) an amino triazine type curing agent; (c) a curing accelerator; and (d) an inorganic filler, so that the flame retardant resin composition not only can show an excellent thermal stability, an excellent mechanical strength and a suitability for the imprinting lithography method but also can improve the reliability of a substrate by reducing a thermal expansion ratio, and to a printed circuit board using the same.
摘要:
The present invention relates to a method for manufacturing a printed circuit board, more particularly to a method for manufacturing a printed circuit board, in which an oxidant capable of polymerizing conductive polymers is selectively marked on a board using imprinting, and the monomer of a conductive polymer is filled in the selected pattern and polymerized, to provide a conductive polymer wiring pattern. With the method for manufacturing a printed circuit board according to certain aspects of the invention as set forth above, a printed circuit board can be given finer wiring widths to allow a highly integrated, highly efficient printed circuit board. Thus, a printed circuit board (PCB) or a flexible printed circuit boards (FPCB) can be manufactured that is applicable to industrial, clerical, and domestic electric electronic products, by a new technique of forming conductive polymer wiring using imprinting.
摘要:
A method for manufacturing a printed circuit board, in which an oxidant capable of polymerizing conductive polymers is selectively marked on a board using imprinting, and the monomer of a conductive polymer is filled in the selected pattern and polymerized, to provide a conductive polymer wiring pattern. With the method for manufacturing a printed circuit board, a printed circuit board can be given finer wiring widths to allow a highly integrated, highly efficient printed circuit board. Thus, a printed circuit board (PCB) or a flexible printed circuit boards (FPCB) can be manufactured that is applicable to industrial, clerical, and domestic electric electronic products, by forming conductive polymer wiring using imprinting.
摘要:
A method for manufacturing printed circuit board is disclosed. With a method for manufacturing a printed circuit board which includes: (a) stacking an insulation substrate, in which a first align hole is perforated, onto a support plate, to one side of which a guide pin is joined, such that the guide pin is inserted into the first align hole, where the first align hole is formed in correspondence with the guide pin, (b) stacking an imprinting mold, in which a second align hole is perforated, onto the support plate, such that the guide pin is inserted into the second hole formed in correspondence with the guide pin, and (c) stacking and pressing a pressing plate onto the support plate, and compressing the insulation substrate and the imprinting mold together, where an intaglio pattern is formed in a surface of the insulation substrate facing the imprinting mold, in correspondence with a circuit pattern, and a raised pattern is formed in a surface of the imprinting mold facing the insulation substrate, in correspondence with the circuit pattern, the installation of expensive aligning equipment is unnecessary in aligning an imprinting mold and an insulation substrate, and it is possible to form the intaglio patterns by imprinting on several insulation substrates at the same time by collectively stacking the several imprinting molds and the insulation substrates and compressing, and to prevent defects caused by the expansion and contraction of the insulation substrate which occur during the forming of the intaglio patterns.
摘要:
The present invention discloses a method for preparation of a hybrid comprising magnetite nanoparticles and carbon nitride nanotubes, comprising: preparing carbon nitride nanotubes by plasma chemical vapor deposition (CVD); dissolving the prepared carbon nitride nanotubes in triethyleneglycol to form solution and adding Fe (acetylacetonate)3 to the solution to obtain a mixture; and heating and cooling the mixture to form a hybrid comprising magnetite nanoparticles and carbon nitride nanotubes, in which the carbon nitride nanotubes are doped with magnetite nanoparticles.
摘要:
A flash memory device including memory cells, each memory cell configured to store bits, a sensing circuit configured to sequentially sense, for each memory cell, sets of the bits of the memory cell, a data rearrangement unit configured to receive words of data and to rearrange bits of the words to be stored in the memory cells, and an output circuit configured to output a group of the words using the sets of bits from one sensing, at least as early as during a subsequent sensing of sets of bits.
摘要:
Disclosed is a method for patterning a nanomaterial using solution evaporation. More particularly, the method for patterning a nanomaterial using solution evaporation includes; coating the nanomaterial with a polymer material and uniformly dispersing the coated nanomaterial in a solvent to prepare a solution containing the nanomaterial, and pouring the nanomaterial-containing solution on a substrate, enabling the nanomaterial to be patterned after evaporation of the solvent.
摘要:
A heat-releasing printed circuit board and semiconductor chip package are disclosed. The heat-releasing printed circuit board includes an insulation layer, on a surface of which a circuit pattern is formed, and a solder resist, which is stacked on the insulation layer, where the solder resist contains carbon nanotubes. The heat-releasing printed circuit board allows the heat generated in a semiconductor chip to be dispersed in several directions of the board or package, to improve heat-releasing property.
摘要:
Disclosed are carbon nitride (C1-xNx) nanotubes with nano-sized pores on their stems, their preparation method and control method of size and quantity of pores thereof.The present invention further has an object of providing the C1-xNx nanotube with pores having the size of not more than 1 nm over structure of the nanotube and a method for preparing the same.Another object of the present invention is to provide the control method of the size and quantity of pores with size of not more than 1 nm in the preparation of the C1-xNx nanotube with the pores over structure of the nanotube.The present invention can produce the C1-xNx nanotube with nano-sized pores by reacting hydrocarbon gas and nitrogen gas through plasma CVD in the presence of metal catalyst particles, wherein x ranges from 0.001 to 0.2.
摘要:
A flash memory apparatus having a single body type rotary cover, wherein a cover is not completely separated from a main body so that loss of the cover is prevented. The flash memory apparatus includes: a flash memory main body including a rectangular shaped case within which a memory element is mounted. A USB terminal piece is electrically connected with the memory element and is installed at a front end of the case to project therefrom and a hinge protuberance formed on at least one side of the case. A cover defined by a pair of parallel plate members facing each other with an interval corresponding to the thickness of the case is provided. The cover has an open front end and a closed rear end. Both lateral ends of the cover are open. The parallel plate members have a pair of hinge holes joined to the hinge protuberance, so that the cover is rotatable with respect to the flash memory main body, whereby the USB terminal piece is either received in an inner space of the cover or rotated for exposure to the outside of the cover.