摘要:
A printed circuit board assembly having an edge joined first and second sub-circuit board is provided. The first sub-circuit board includes an edge with a stair-step profile interconnection wherein each of the stairs on the profile exposes an area of a signal layer. Each exposed portion of the signal layer has a plurality of signal pads thereon. The second sub-circuit board includes an edge with an inverse stair-step profile interconnection. A pad-on-pad connector is positioned in-between and electrically interconnects the respective signal layers on each sub-circuit board.
摘要:
A device to access and/or verify connections between a chip package and a printed circuit board (“PCB”), specifically within packages lacking back-side measurement access, includes a housing for insertion between the chip package and PCB. A passageway in the housing connects an entrance and an exit from the housing. The entrance is disposed on an end of the housing facing away from the chip package. The exit is disposed on a side of the housing below the chip package such that the passageway is directed at a signal path between the chip package and the PCB. A conductor disposed in the passageway is movable between a retracted position in which a contact end of the conductor is disposed within the passageway of the housing and an extended position in which the contact end of the conductor is disposed outside of the housing and in contact with the signal path.
摘要:
Disclosed herein is a method comprising drilling a first hole in a multilayered device; the multilayered device comprising a fill layer disposed between and in intimate contact with two layers of a first electrically conducting material; the fill layer being electrically insulating; plating the first hole with a slurry; the slurry comprising a magnetic material, an electrically conducting material, or a combination comprising at least one of the foregoing materials; filling the first hole with a fill material; the fill material being electrically insulating; laminating a first layer and a second layer on opposing faces of the multilayered device to form a laminate; the opposing faces being the faces through which the first hole is drilled; the first layer and the second layer each comprising a second electrically conducting material; drilling a second hole through the laminate; the second hole having a circumference that is encompassed by a circumference of the first hole; and plating the surface of the second hole with a third electrically conducting material.
摘要:
Methods and systems for controlled formation of a resist in a via. In one embodiment, a method for plating at least a portion of the inside of a via formed in an object may include filling the via with a resist capable of selective three-dimensional polymerization. The resist may be selectively polymerized, and developed. When the resist is developed, only a portion of the resist is removed according to whether the portion is polymerized, thereby leaving a remaining portion in the via and forming a desired structure in the via.
摘要:
A device for connecting a plurality of assemblage-mounted optical transmitters to a plurality of assemblage-mounted optical receivers mounted on a selected side of an assemblage includes a planar frame configured to be coupled to the selected side of the assemblage. A plurality of first redirecting structures is affixed to the planar frame and each is configured to receive a first optical signal from a different assemblage-mounted optical transmitter. Each first redirecting structure transmits a second optical signal, corresponding to the first optical signal, along a preselected path. A plurality of second redirecting structures is affixed to the planar frame and each is configured to receive the second optical signal from a different one of the first redirecting structures. Each of the second redirecting structures transmits a third optical signal, corresponding to the second optical signal, to a different one of the assemblage-mounted optical receivers.
摘要:
A device for connecting a plurality of assemblage-mounted optical transmitters to a plurality of assemblage-mounted optical receivers mounted on a selected side of an assemblage includes a planar frame configured to be coupled to the selected side of the assemblage. A plurality of first redirecting structures is affixed to the planar frame and each is configured to receive a first optical signal from a different assemblage-mounted optical transmitter. Each first redirecting structure transmits a second optical signal, corresponding to the first optical signal, along a preselected path. A plurality of second redirecting structures is affixed to the planar frame and each is configured to receive the second optical signal from a different one of the first redirecting structures. Each of the second redirecting structures transmits a third optical signal, corresponding to the second optical signal, to a different one of the assemblage-mounted optical receivers.
摘要:
A method, system and computer program product for implementing an enhanced optical mirror coupling and alignment mechanism utilizing two-photon resist. An initial placement is provided for one or more vias on a printed circuit board. A via is filled with a resist. A series of tightly focused light beams suitably exposes the resist at varying depths in the via, the varying depths defining a sloped polymer in the via after removing resist that had not been at the focus of the light beam. The sloped polymer is coated with reflective material to reflect light into or out of the via.
摘要:
A method, system and computer program product for implementing an enhanced optical mirror coupling and alignment mechanism utilizing two-photon resist. An initial placement is provided for one or more vias on a printed circuit board. A via is filled with a resist. A series of tightly focused light beams suitably exposes the resist at varying depths in the via, the varying depths defining a sloped polymer in the via after removing resist that had not been at the focus of the light beam. The sloped polymer is coated with reflective material to reflect light into or out of the via.
摘要:
Exemplary embodiments of the present invention relate to a method for making multilayer flexible printed circuit carrier. The method comprises producing a first flexible conductor layer having a first width, producing a second flexible conductor layer having a second width larger than the first width, and separating a first side of the first flexible conductor and a first side of the second flexible conductors with a first insulator. The method also comprises placing a second insulator over at least a portion of a second surface of the first flexible conductor, and wrapping a portion of the second flexible conductor over the at least a portion of the second surface of the first flexible conductor.
摘要:
A method, system and computer program product are provided for implementing enhanced low loss, thin, high performance flexible circuits. A plurality of predefined values including predefined layout, spacing and density of conductor, signal trace construct, shape and feature values are provided for each signal layer in a flexible circuit. Volumetric calculations are performed using the predefined values for each signal layer in the flexible circuit and a respective adjacent adhesive layer is characterized for each signal layer providing a respective optimized adjacent adhesive layer.