摘要:
A semiconductor device and a method for driving the same rapidly detect failure of a through-semiconductor-chip via and effectively repairing the failure using a latching unit assigned to each through-semiconductor-chip via. The semiconductor device includes a plurality of semiconductor chips that are stacked, and a plurality of through-semiconductor-chip vias to commonly transfer a signal to the plurality of semiconductor chips, wherein each of the semiconductor chips includes a multiplicity of latching units assigned to the through-semiconductor-chip vias and the multiplicity of latching units of each of the semiconductor chips constructs a boundary scan path including the plurality of through-semiconductor-chip vias to sequentially transfer test data.
摘要:
An yttrium based phosphor, a process for preparing the yttrium based phosphor, and a display device using the yttrium based phosphor, the yttrium based phosphor including a conducting material such as WO3 or SnO2, and exhibiting an enhanced luminance characteristic under low voltage, and high current density conditions.
摘要:
The present invention relates to a new compound of 2-amino-9-(2-substituted ethyl)purine and an effective method for preparing 9-[4-acetoxy-3-(acetoxymethyl)but-1-yl]-2-aminopurin (famciclovir) using the same. The 2-amino-9-(2-substituted ethyl)purine according to the invention is represented by the following formula (II′): (Formula II′) wherein R is a hydroxy, halogen, mesyloxy or tosyloxy group. The inventive method for the preparation of famciclovir comprises the steps of halogenating 2-amino-9-(2-substituted ethyl)purine to give 2-amino-9-(2-halogenoethyl)purine, and reacting the halogenated compound with diethylmalonate. The inventive preparation method allows famciclovir, a purine derivative drug with effective antiviral activity, to be prepared in a high selectivity of 100% in a pure form by using the inventive new compound of 2-amino-9-(2-substituted ethyl)purine. In addition, the inventive method allows the utilization of relatively mild reaction conditions, and thus, has high industrial process efficiency.
摘要:
An yttrium based phosphor, a process for preparing the yttrium based phosphor, and a display device using the yttrium based phosphor, the yttrium based phosphor including a conducting material such as WO3 or SnO2, and exhibiting an enhanced luminance characteristic under low voltage, and high current density conditions.
摘要:
A method of forming pixel cell for three-dimensional image display is provided. The method of forming pixel cell according to this invention relates to a method of forming pixel-cell in a three-dimensional image display system including an image display panel in which a plurality of unit patterns are arranged in a vertical direction and horizontal direction and an optical plate having repetitive pattern. The method according to this invention comprising regarding each side of rhombus pattern having an arbitrary vertex angle as a straight line having a predetermined slant; calculating a number of unit pattern in vertical direction and a number of unit pattern in horizontal direction, corresponding to said predetermined slant; approximating said predetermined slant to stepped patterns with said number of unit pattern in vertical direction and said number of unit pattern in horizontal direction; and forming said pixel cell using said stepped patterns. And integer-numbered unit patterns are arranged in said pixel cell. By the present invention, quality degradation of a three-dimensional image due to Moire patterns is reduced.
摘要:
A semiconductor system includes a controller; a semiconductor device comprising a plurality of stacked semiconductor chips stacked over the controller, and a plurality of through-silicon vias (TSVs) configured to commonly transfer a signal to the plurality of stacked semiconductor chips; and a defect information transfer TSV configured to transfer TSV defect information sequentially outputted from at least one of the semiconductor chips to the controller, wherein the controller comprises: a plurality of first repair fuse units configured to set first fuse information based on the TSV defect information; and a plurality of first TSV selection units configured to selectively drive the TSVs in response to the first fuse information.
摘要:
A semiconductor device includes a first transmission line and a second transmission line disposed at different layers; a contact fuse coupled with the first transmission line and the second transmission line; a power driver configured to apply an electric stress to the contact fuse; and a fuse state output unit configured to output a fuse state signal having a logic level corresponding to an electric connection state of the contact fuse.
摘要:
A semiconductor device includes a plurality of stacked semiconductor chips; and a plurality of through-silicon vias (TSVs) including first TSVs and redundant TSVs and configured to commonly transfer a signal to the plurality of stacked semiconductor chips. At least one of the semiconductor chips includes a plurality of repair fuse units configured to store defect information as to at least one defect of the TSVs; and a plurality of latch units allocated to the respective TSVs and configured to store a plurality of signals indicating at least one TSV defect and outputted from the plurality of repair fuse units.
摘要:
The present invention relates to a device and method for digital hologram recording and reconstructing that solves the problem of overlapping real and virtual images when reconstructing a hologram with a digital hologram device such as a digital hologram microscope. The device comprises a hologram reconstructing module for dividing the hologram area recorded on the CCD, recording in the interim each divided area whereby for each of the areas the pixel values of the rest of the areas except for that divided area is set to zero, outputting a reconstructed image with the virtual image removed by integrating each of the reconstructed hologram images recorded in the interim, and a control unit for controlling the hologram recording on the CCD, including dividing, mid-recording, and integration operations of the hologram reconstructing module, thus leading to perfect holographic information of the object.
摘要:
The present invention relates to a new compound of 2-amino-9-(2-substituted ethyl)purine and an effective method for preparing 9-[4-acetoxy-3-(acetoxymethyl)but-1-yl]-2-aminopurin (famciclovir) using the same. The 2-amino-9-(2-substituted ethyl)purine according to the invention is represented by the following formula (II′): (Formula II′) wherein R is a hydroxy, halogen, mesyloxy or tosyloxy group. The inventive method for the preparation of famciclovir comprises the steps of halogenating 2-amino-9-(2-substituted ethyl)purine to give 2-amino-9-(2-halogenoethyl)purine, and reacting the halogenated compound with diethylmalonate. The inventive preparation method allows famciclovir, a purine derivative drug with effective antiviral activity, to be prepared in a high selectivity of 100% in a pure form by using the inventive new compound of 2-amino-9-(2-substituted ethyl)purine. In addition, the inventive method allows the utilization of relatively mild reaction conditions, and thus, has high industrial process efficiency.