A typical integrated circuit interconnects millions of microscopic transistors and resistors with aluminum wires buried in silicon-dioxide insulation. Yet, aluminum wires and silicon-dioxide insulation are less attractive than copper wires and polymer-based insulation, which promise both lower elect
A typical integrated circuit interconnects millions of microscopic transistors and resistors with aluminum wires buried in silicon-dioxide insulation. Yet, aluminum wires and silicon-dioxide insulation are less attractive than copper wires and polymer-based insulation, which promise both lower electrical resistance and capacitance and thus faster, more efficient circuits. Unfortunately, current techniques cannot realize the promise because copper reacts with the polymer-based insulation to form copper dioxide within the polymer, reducing effectiveness of the copper-polymer combination. Accordingly, the inventor devised a method which uses a non-acid-precursor to form a polymeric layer and then cures, or bakes, it in a non-oxidizing atmosphere, thereby making the layer resistant to copper-dioxidizing reactions. Afterward, the method applies a copper-adhesion material, such as zirconium, to the layer to promote adhesion with a subsequent copper layer. With reduced copper-dioxide, the resulting interconnective structure facilitates integrated circuits with better speed and efficiency.
대표청구항▼
A typical integrated circuit interconnects millions of microscopic transistors and resistors with aluminum wires buried in silicon-dioxide insulation. Yet, aluminum wires and silicon-dioxide insulation are less attractive than copper wires and polymer-based insulation, which promise both lower elect
A typical integrated circuit interconnects millions of microscopic transistors and resistors with aluminum wires buried in silicon-dioxide insulation. Yet, aluminum wires and silicon-dioxide insulation are less attractive than copper wires and polymer-based insulation, which promise both lower electrical resistance and capacitance and thus faster, more efficient circuits. Unfortunately, current techniques cannot realize the promise because copper reacts with the polymer-based insulation to form copper dioxide within the polymer, reducing effectiveness of the copper-polymer combination. Accordingly, the inventor devised a method which uses a non-acid-precursor to form a polymeric layer and then cures, or bakes, it in a non-oxidizing atmosphere, thereby making the layer resistant to copper-dioxidizing reactions. Afterward, the method applies a copper-adhesion material, such as zirconium, to the layer to promote adhesion with a subsequent copper layer. With reduced copper-dioxide, the resulting interconnective structure facilitates integrated circuits with better speed and efficiency. tions being filed on even date herewith. U.S. patent application, entitled MARKING 3D LOCATIONS FROM ULTRASOUND IMAGES filed in the names of Frank Sauer, Ali Khamene, Benedicte Bascle; U.S. patent application entitled LOCAL 3D RECONSTRUCTION FROM ULTRASOUND IMAGES and filed in the names of Frank Sauer, Ali Khamene, Benedicte Bascle; U.S. patent application entitled SPATIOTEMPORAL FREEZING OF ULTRASOUND IMAGES IN AUGMENTED REALITY VISUALIZATION and filed in the names of Frank Sauer, Ali Khamene, Benedicte Bascle; and U.S. patent application entitled USER INTERFACE FOR AUGMENTED AND VIRTUAL REALITY SYSTEMS and filed in the names of Frank Sauer, Lars Schimmang, Ali Khamene.
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