Abstract: An advanced microelectronic coil device incorporating a toroidal core and a plurality of sets of windings, wherein the windings are separated by one or more layers of insulating material. In one embodiment, the insulating material is vacuum-deposited over the top of a first set of windings before the next set of windings is wound onto the core. In this fashion, the insulating material insulates the entire first winding from the second without the need for individual insulation on each of the windings, or the use of margin tape. The use of the vacuum-deposited insulating layer(s) provides a high degree of dielectric strength, yet consumes a minimum space since the insulation on each winding is minimized. The toroidal core is also optionally provided with a controlled thickness gap for controlling saturation of the core.

Abstract: A delay line having an inductive component in which inductive windings are made on multiple post bobbin units to maintain spacing and alignment. Two multiple bobbin units are collectively wound and then secured together with the bobbins interfitting to form a rigid, precisely aligned element, with the wires from each bobbin positioned for ease of connection. The inductive component is mounted on the base of a dual in-line package (DIP), capacitors are secured in the inductive component and the electrical connections are made to connect the inductors and capacitors to the contact pins of the DIP. The assembly is then potted or otherwise enclosed for protection.