Abstract:
Flexible interconnects, flexible integrated circuit systems and devices, and methods of making and using flexible integrated circuitry are presented herein. A flexible integrated circuit system is disclosed which includes first and second discrete devices that are electrically connected by a discrete flexible interconnect. The first discrete devices includes a first flexible multi-layer integrated circuit (IC) package with a first electrical connection pad on an outer surface thereof. The second discrete device includes a second flexible multi-layer integrated circuit (IC) package with a second electrical connection pad on an outer surface thereof. The discrete flexible interconnect is attached to and electrically connects the first electrical connection pad of the first discrete device to the second electrical connection pad of the second discrete device.
Abstract:
A capillary tool for use in feeding, bending, and attaching a bonding wire between a pair of bond pads includes a body and a heating element. The body has an internal tube that extends from a first surface of the capillary tool to a second surface of the capillary tool. In some implementations, the internal tube has a portion with a generally helical shape that includes at least a portion of one complete revolution about a central axis of the body. The heating element is coupled to the body to provide a heat affected zone along a portion of the internal tube that heats the bonding wire as the bonding wire is fed through the internal tube.
Abstract:
Flexible integrated circuit (IC) modules, flexible IC devices, and methods of making and using flexible IC modules are presented herein. A flexible integrated circuit module is disclosed which includes a flexible substrate and a semiconductor die attached to the flexible substrate. An encapsulating layer, which is attached to the flexible substrate, includes a thermoplastic resin and/or a polyimide adhesive encasing therein the semiconductor die. The encapsulating layer may be an acrylic -based thermally conductive and electrically isolating polyimide adhesive. Optionally, the encapsulating layer may be a B- stage FR-4 glass-reinforced epoxy thermoplastic polymer or copolymer or blend. The die may be embedded between two flexible substrates, each of which includes a layer of flexible polymer, such as a polyimide sheet, with two layers of conductive material, such as copper cladding, disposed on opposing sides of the layer of flexible polymer.