Importance

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Abstract

A customizable circuit using a programmable interconnect and compatible TAB chip bonding design. The programmable interconnect comprises layers of wire segments forming programmable junctions rather than continuous wires. This segmentation is performed with an offset from line to line in each layer such that the ends of the segments in each layer form long diagonal lines having a pitch determined by the basic wire segment length. Uniform capacitance effects are achieved by alternating the layers of the wire segments. The terminal ends of the segments are positioned in a plane such that segments may be connected by short links to form the desired interconnect. The links which join the line segments customize the otherwise undedicated interconnect. Resistive links may be used to minimize undesirable transmission line effects. The segment ends may also be connected through electrically programmable elements. Carrier tape bonds the integrated circuit chips to the programmable interconnect. Also disclosed are methods for forming the interconnect and the TAB chip bonding design.

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First Claim