摘要:
A metallic liner stack including at least a Group VIIIB element layer and a CuMn alloy layer is deposited within a trench in a dielectric layer. Copper is deposited on the metallic liner stack and planarized to form a conductive interconnect structure, which can be a metal line, a metal via, or a combination thereof. The deposited copper and the metallic liner stack are annealed before or after planarization. The Mn atoms are gettered by the Group VIIIB element layer to form a metallic alloy liner including Mn and at least one of Group VIIIB elements. Mn within the metallic alloy liner combines with oxygen during the anneal to form MnO, which acts as a strong barrier to oxygen diffusion, thereby enhancing the reliability of the conductive interconnect structure.
摘要:
A first insulating film is formed on a semiconductor substrate. A first interconnection is formed in a trench formed in the first insulating film. A first barrier film is formed between the first interconnection and first insulating film. A second insulating film is formed on the upper surface of the first interconnection, and in a first hollow portion between the side surface of the first barrier film and the first insulating film. The second insulating film is formed from the upper surface of the first interconnection to a depth higher than the bottom surface of the first interconnection. The first hollow portion is formed below the bottom surface of the second insulating film.
摘要:
A method of manufacturing a semiconductor device, including forming an opening in an interlevel insulating film disposed on a semiconductor substrate, forming an auxiliary film containing a predetermined metal element, to cover an inner surface of the opening, forming a main film to fill the opening after forming the auxiliary film, the main film containing, as a main component, Cu used as a material of an interconnection main layer, and performing a heat treatment before or after forming the main film, thereby diffusing the predetermined metal element of the auxiliary film onto a surface of the interlevel insulating film facing the auxiliary film, so as to form a barrier film on the interlevel insulating film within the opening, the barrier film containing, as a main component, a compound of the predetermined metal element with a component element of the interlevel insulating film.
摘要:
A transistor formed on a semiconductor substrate has a gate electrode formed via a gate insulating film and first and second diffusion layers formed in the semiconductor substrate, the first and second diffusion layers being positioned at both sides of the gate electrode. A first electrode is connected to the first diffusion layer of the transistor. A capacitor insulating film formed on the first electrode is formed of a silicon oxide film containing a substrate which is faster than Cu in diffusion velocity and which more readily reacts with oxygen than Cu does. A second electrode formed on the capacitor insulating film is formed of one of a Cu layer and another Cu layer containing the substance.
摘要:
A semiconductor device according to an embodiment includes: a semiconductor substrate having a semiconductor element formed on a surface thereof; an interwiring insulating film formed above the semiconductor substrate; a wiring formed in the interwiring insulating film; a first intervia insulating film formed under the interwiring insulating film; a first via formed in the first intervia insulating film and connected to a lower surface of the wiring; a second intervia insulating film formed on the interwiring insulating film; a second via formed in the second intervia insulating film and connected to an upper surface of the wiring; and a CuSiN film formed in at least one of a position between the interwiring insulating film and the first intervia insulating film, and a position between the interwiring insulating film and the second intervia insulating film.
摘要:
Provided is a semiconductor device including first and second wiring layers, and dummy and conductive patterns. The first and second wiring layers each have a hollow structure, and are stacked vertically adjacent to each other on a semiconductor substrate. The dummy pattern is formed in the first wiring layer, and does not function as a signal line. The conductive pattern is formed in the second wiring layer. The dummy and conductive patterns have an overlapping portion where these patterns overlap each other, and a non-overlapping portion where these patterns overlap each other, as viewed from above the semiconductor substrate.
摘要:
An ink jet printer including a carriage which is movable relative to a sheet of paper, a recording head which is mounted on the carriage and records an image on the sheet by ejecting a droplet of ink toward the sheet, one or more ink tanks which store the ink or inks to be supplied to the recording head, a buffer tank which is mounted on the carriage, and one or more ink flow passages in which the inks are supplied from the ink tanks to the recording head via the buffer tank. The buffer tank has, at a height position higher than a height position where the recording head is provided, one or more air buffer chambers which accommodate respective amounts of the inks, and collect air bubbles produced in the ink flow passages. The printer further includes one or more air bubble discharging passages which communicate, at one ends thereof, with upper portions of the air buffer chambers, and discharge, via the other ends thereof, the air bubbles collected by the air buffer chambers.
摘要:
A method of fabricating a semiconductor device according to an embodiment includes: forming a precursor film containing therein a predetermined metallic element on a surface of a recess portion formed in an insulating film on a semiconductor substrate; forming a wiring formation film on the precursor film; performing a heat treatment in an oxidation ambient atmosphere to cause the precursor film and the insulating film to react with each other, thereby forming a self-formed barrier film containing a compound, containing therein the predetermined metallic element and a constituent element of the insulating film, as a basic constituent in a boundary surface between the precursor film and the insulating film, and moving the predetermined metallic element unreacted into the wiring formation film through diffusion to cause the predetermined metallic element unreacted to react with oxygen contained in the oxidation ambient atmosphere on a surface of the wiring formation film, thereby precipitating an unreacted metallic oxide film including the predetermined metallic element; forming the same material as that of the wiring formation film on the wiring formation film after the unreacted metallic oxide film is removed; and flattening the wiring formation film until a portion of the insulating film located outside the recess portion is exposed.
摘要:
An ink-jet printer, including: a printing head for performing printing on a print medium by ejecting ink from nozzles; an ink tank for storing the ink to be supplied to the printing head; an ink passage through which the ink is supplied from the ink tank to the printing head; a buffer tank which stores the ink supplied through the ink passage; and an air-discharging device which discharges an air accumulated in the buffer tank through an air-discharge passage and which includes a valve member operable to open and close a communication opening that is provided in the air-discharge passage a part of which functions as a valve chamber and having: a valve portion which opens and closes the communication opening and which includes a sealing member; and a rod portion connected to the valve portion, wherein the air-discharging device further includes air-discharge-flow assuring means for assuring a discharge flow of the air flowing from the buffer tank through the air-discharge passage.
摘要:
A reliability evaluation test apparatus of this invention includes a wafer storage section which stores a wafer in a state wherein the electrode pads of a number of devices formed on the wafer and the bumps of a contactor are totally in electrical contact with each other. The wafer storage section transmits/receives a test signal to/from a measurement section and has a hermetic and heat insulating structure. The wafer storage section has a pressure mechanism which presses the contactor and a heating mechanism which directly heats the wafer totally in contact with the contactor to a predetermined high temperature. The reliability of an interconnection film and insulating film formed on the semiconductor wafer are evaluated under an accelerated condition.