摘要:
Disclosed is a drill bit for making a hole through stacked PCBs includes a drill part formed with drilling edges on an outer surface thereof and brought into contact with the PCBs, that is, a workpiece in which to make the hole; a reamer part formed on the rear end of the drill part and having at least one reaming edge for finishing the surface of the hole; and a shank part formed on the rear end of the reamer part and mounted to a machine tool.
摘要:
The present invention relates to a capacitor-embedded PCB and a method of manufacturing the same. The capacitor-embedded PCB includes a dielectric layer, a lower electrode layer formed under the dielectric layer, and an upper electrode layer formed on the dielectric layer and configured to have at least one first blind via hole that is inwardly formed.
摘要:
A technique for providing service processor (SP) access to registers, e.g., control and status registers (CSRs), located within hardware modules of a computer system, ensures access to the CSRs within a predetermine time period. The computer system includes a host module (HM) and a plurality of client modules (CMs). The CMs each include one or more associated registers, and each of the CMs is separately addressable. At least one of the CMs operates at a different clock frequency than the remaining CMs and includes a clock synchronizer, which provides a clock signal to facilitate reading of or writing to the associated registers of the CM by the HM.
摘要:
Disclosed is a CVD apparatus for depositing polysilicon without a separate following annealing process, the CVD apparatus comprising: a chamber to form a thin film on a substrate; a showerhead placed in an upper part of the chamber to inject reaction gas onto the substrate; a distributor formed with distributing holes to uniformly distribute the reaction gas; a catalyst hot wire unit to heat and dissolve the reaction gas injected through the distributing holes of the distributor; a chuck on which the substrate is mounted; a discharging hole to discharge the reaction gas; and a shielding wall provided as a lateral wall of the chamber and formed with a heater to suppress particle generation. With this configuration, the particle generation is minimized and thus the yield is enhanced. Also, the thin film has good crystallinity, and decreased hydrogen content.
摘要:
The present invention relates to a photosensitive composition comprising a triazine-based photoactive compound containing oxime ester. The photosensitive composition according to the present invention has good sensitivity, retention rate, mechanical strength, heat resistance, chemical resistance and developing durability since it contains, as photopolymerization initiator, a compound having an oxime ester group and a triazine group in one molecule and thus effectively absorbs UV radiation. Therefore, the photosensitive composition according to the present invention is advantageous not only in curing of materials for color filters, resin black matrixes, column spacers, overcoats and passivation films of liquid crystal displays, but also in high temperature process characteristics.
摘要:
An inductively coupled plasma processing apparatus is disclosed. The inductively coupled plasma processing apparatus includes a reaction chamber, a substrate holder for forming a plasma space in the reaction chamber and for supporting a processing substrate therein, a shield provided at the lateral side of the substrate holder, a plurality of openings formed below the substrate, and a linear antenna in the lower portion of the reaction chamber to which a high frequency power signal is applied. Thus, the inductively coupled plasma processing apparatus can uniformly distribute the density of the plasma so that a large-sized flat panel display can be implemented.