摘要:
The present invention describes essentially three different embodiments for the implementation of low impedance (over frequency) power delivery to a die. Such low impedance to a high frequency allows the die to operate at package-level speed, thus reducing yield loss at the packaging level. Each embodiment addresses a slightly different aspect of the overall wafer probe application, lit each embodiment, however, the critical improvement of this disclosure is the location of the passive components used, for supply filtering/ decoupling relative to prior art. All three embodiments, require a method to embed the passive components in close proximity to the pitch translation substrate or physically in the pitch translation substrate.
摘要:
A method and electrical interconnect structure internal to a printed circuit board for the purposes of creating a reliable, high performing connection method between embedded component terminals, signal traces and or power/ground planes which may occupy the same vertical space as the embedded components, such as a capacitor or resistor. Further easing the assembly and reliability through the manufacturing process of said embedded component structures. In one structure castellated drilled, plated vias connect the trace or plane within the printed circuit board to the electrical terminals of the embedded component using a permanent and highly conductive attach material. In another structure, the trace or plane connect by selective side-wall plating, which surrounds the electrical terminal of the component This structure also uses a permanent and highly conductive attach material to electrically connect the component terminal to the plated side-wall and in a final embodiment the terminals are connected through a conductive attach material through a via in the z axis to a conductive pad.
摘要:
The present disclosure relates to reducing unwanted RF noise in a printed circuit board (PCB) containing an RF device. An isolation filter is embedded in a PCB containing an RDF device. By placing the isolation filter as close as possible to the RF device in order to dramatically reduce unwanted RF noise due to unavoidable coupling between Vias and planes in the PCB structure.
摘要:
The present invention provides for a method and structure for forming three-dimensionally routed dielectric wires between discrete points on the two or more parallel circuit planes. The wires may be freely routed in three-dimensional space as to create the most efficient routing between the two arbitrarily defined points on the two or more parallel circuit planes. Metalizing the outer surfaces of these three dimensional dielectric wires electrically coupling the discrete wires to their respective discrete contact points. Two or more of these wires may be in intimate contact to one another electrically coupling to each other as well as to two or more discrete contact pads. These electrically coupled contact pads may be on opposite sides or on the same side of the structure and the formed metalized wires may originate on one side and terminate on the other or originate and terminate from the same side
摘要:
A method and structure for improving signal integrity probing. A coaxial or a microcoaxial cable is threaded through an optional alignment substrate where the cable is used to support or align the cable or an array of cables. A conductive elastomer is placed on a cable or a microcoaxial cable to improve signal integrity probing.
摘要:
A method and a structure for a coaxial via that extend along the entire length of a signal via in a printed circuit board. Signal integrity is improved by providing ground shield for the entire length of the coaxial via. The ground shielding can be implemented by either providing ground cage vias around a signal via and routing a trace to the signal via on a built up layer or by providing a semi circle ground trench through a build up layer to permit a trace access to the signal via.
摘要:
The present invention relates to a method and an apparatus for a resurfaceable contact pad that uses; an epoxy to encapsulate contact pads so that the epoxy and encapsulated contact pads are coplanar on a silicon redistribution interposer. These redistribution interposers electrically connect a wafer semi-conductor to a probe card where it is necessary to convert the course pad arrangement of one with a fine pad arrangement of the other through the use of an interposer board. The present invention relates to an apparatus and a method creates resurfaceable contact pads which may be resurfaced one or multiple times with an abrasive sanding operation to recreate a coplanar surface should any contact pad surfaces become damaged, allowing for a more cost- effective repair.
摘要:
A method and an electrical interconnect mechanism in which elastomeric pins are printed onto metal retainer tabs having at least one protrusion or tab extending laterally therefrom to engage a catch or recess of the laminated housing so as to locate each of the elastomeric pins and secure them within the housing. In one embodiment a champher may be employed with a catch or recess to engagely secure a second protrusion or tab extending laterally from another side of said elastomeric pin. In another embodiment the elastomeric pin may have a solid metal ring or a slide collar around the center of the pin wherein the ring has one or two tabs for engaging the recess in the housing and if preferred also the recess of a champfer.
摘要:
An electrical connector electrically connects either an adaptor board or an electrical component to a main circuit board through the use of a thin printed circuit having an array of pads one each side where on one side the pads are connected to a main circuit board by solder balls, solder columns conductive epoxy or any other way practiced in the art and on the other side of the thin circuit the pads are connected to an adaptor board by a conductive compliant elastomeric material. The sides of the thin printed circuit are electrically connected to one another in ways practiced in the art.