摘要:
A semiconductor device includes a wafer and a dicing saw tape that is laminated to a back surface of the wafer. An active surface of the wafer is opposite the back surface of the wafer. The semiconductor device further includes a lamination tape disposed in contact with the wafer. The lamination tape includes an under-film layer contacting the active surface of the wafer. The lamination tape further includes an adhesive layer contacting the under-film layer.
摘要:
A semiconductor device begins with a wafer having a plurality of bumps formed on a surface of the wafer. An under-film layer is formed over the wafer to completely cover all portions of the bumps with the under-film layer. An adhesive layer is formed over the under-film layer. A support layer is attached over the adhesive layer. A back surface of the wafer undergoes grinding. The support layer provides structural support to the wafer. The support layer is removed to expose the adhesive layer. The adhesive layer is removed to expose the under-film layer. The wafer is singulated into semiconductor die. The semiconductor die is mounted to a substrate by applying force to a back surface of the semiconductor die to press the bumps through under-film layer to contact the substrate while the under-film layer provides an underfill between the semiconductor die and substrate.
摘要:
The present application relates to a compound of formula A-X—B, where (i) A-X—B form an ionic compound Ai Xi Bi where Ai and Bi are each individually an organic onium cation; and Xi is anion of the formula Q-R500—SO3− or (ii) A-X—B form a non-ionic compound Ac-Xc-Bc, where Ai, Bi, Q,, R500, Ac, Bc, and Xc are defined herein. The compounds are useful as photoactive materials.
摘要:
An apparatus and method for providing traceback connection using a connection redirection technique are provided. A packet blocking unit blocks an attack packet transmitted to the system and a first response packet output from the system in response to the attack packet, if a system attack sensing signal is received. A response packet generation unit generates a second response packet into which a watermark is inserted, in response to the attack packet, and transmits the second response packet to a system corresponding to the source address of the attack packet. A path traceback unit receives a detection packet containing transmission path information of the second response packet from a system existing on a transmission path of the second response packet, and based on the received detection packet, traces back the transmission path of the second response packet and identifies the location of the attacker system. According to the apparatus and method, even when an attacker attacks a predetermined system via a plurality of systems, the actual location of the attacker system can be traced back fast and accurately and damage of the victim system can be minimized.
摘要:
Semiconductor packages having a thin structure capable of easily discharging heat from a semiconductor chip included therein, and methods for fabricating such semiconductor packages, are disclosed. An embodiment of a semiconductor package includes a semiconductor chip having a first major surface and a second major surface, the semiconductor chip being provided at the second major surface with a plurality of input/output pads; a circuit board including a resin substrate having a first major surface and a second major surface, a first circuit pattern formed at the first major surface and provided with a plurality of ball lands, a second circuit pattern formed at the second major surface and provided with a plurality of bond fingers connected with the ball lands by conductive via holes through the resin substrate, cover coats respectively coating the first and second circuit patterns while allowing the bond fingers and the ball lands to be exposed therethrough, and a central through hole adapted to receive the semiconductor chip therein; electrical conductors that electrically connect the input/output pads of the semiconductor chip with the bond fingers of the circuit board, respectively; a resin encapsulate that covers the semiconductor chip, the electrical conductors, and at least part of the circuit board; and, a plurality of conductive balls fused on the ball lands of the circuit board, respectively.
摘要:
A greenhouse plant cultivation control system includes a plurality of solar cell modules providing light of different wavelengths to each of a plurality of areas in which plants are cultivated, and a movement of a plant to an area in which light of a wavelength required for the plant is provided is determined according to a type of the plant and a growth stage of the plant.
摘要:
A method of making a semiconductor device includes forming an under-film layer over bumps disposed on a surface of a wafer to completely cover the bumps, and forming an adhesive layer over the under-film layer. The method further includes attaching a support layer over the adhesive layer, removing a portion of a back surface of the wafer, and removing the support layer to expose the adhesive layer that remains disposed over the under-film layer. The method further includes removing the adhesive layer to expose the under-film layer while the bumps remain completely covered by the under-film layer, and singulating the wafer to form a semiconductor die. The method further includes pressing the bumps into contact with a substrate while the under-film layer provides an underfill between the semiconductor die and the substrate.
摘要:
The present invention relates to conversion of exhaust gas containing nitrogen oxide (NOx) such as NO, NO2 and N2O into N2 and H2O through catalytic reaction with injection of a reducing agent such as ammonia and urea. A fabrication method of zeolite honeycomb type catalyst for reducing nitrogen oxide of the present invention includes: (a) obtaining an inorganic binder by mixing and uniformly peptizing pseudo-boehmite, distilled water and a pH adjuster; (b) obtaining a paste by mixing and kneading zeolite, the inorganic binder, an organic binder and distilled water; (c) extruding the paste into an extrudate having a through pore of a regular structure; and (d) drying and heat treating the extrudate.