摘要:
A method of making a fusion bonded circuit structure. Each major surface of an LCP substrate is provided with a seed layers of a conductive material. Resist layers are deposited on the seed layers. The resist layers are processed to create recesses corresponding to a desired circuitry layers on each side of the LCP substrate. The recesses expose portions of the seed layers of conductive material. The LCP substrate is electroplated to simultaneously create conductive traces defined by the first recesses on both sides of the LCP substrate. The resist layers are removed to reveal the conductive traces. The LCP substrate is etched to remove exposed portions of the seed layers adjacent the conductive traces. LCP layers are fusion bonded to the major surfaces of the LCP substrate to encapsulate the conductive traces in an LCP material. The LCP layers can be laser drilled to expose the conductive traces.
摘要:
An electrical connectors with electrodeposited terminals that are grown in place by electroplating cavities formed in a series of resist layers. The resist layers are subsequently stripped away. The resulting terminal shape is defined by the shape of the cavity created in the resist layers. Complex terminal shapes are possible. The present conductive terminals are particularly useful for electrical interconnects and semiconductor packaging substrates.
摘要:
An electrical interconnect and a method of making the same. A plurality of contact members are located in through holes in a substrate so distal portions of the contact members extend above a first surface of the substrate in a cantilevered configuration and proximal portions of the contact members are accessible along a second surface of the substrate. A flowable polymeric material located on the second surface of the substrate is fusion bonded to the proximal portions of the contact members so the flowable polymeric material substantially seals the through holes in the substrate. An insulator housing is bonded to the first surface of the substrate with the distal portions of the contact members located in through holes in an insulator housing, so the distal portions are accessible from a second surface of the insulator housing.
摘要:
A method of making a package for a semiconductor device having electrical terminals. At least one semiconductor device is located on a substrate. A first dielectric layer is printed on at least a portion of the semiconductor device to include first recesses aligned with a plurality of the electrical terminals. A conductive material is deposited in the first recesses forming contact members. A second dielectric layer is printed on at least a portion of the first dielectric layer to include second recesses aligned with a plurality of the first recesses. A conductive material is deposited in at least a portion of the second recesses to include a circuit geometry and a plurality of exposed terminals. A compliant material is deposited in recesses in one or more of the first and second dielectric layers adjacent to a plurality of the exposed terminals.
摘要:
A test socket for IC devices includes a multi-layered socket housing with at least one center layer and first and second surface layers. The first and second surface layers have a thickness and dielectric constant less than that of the center layers. A plurality of contact members are located in center openings in the center layer with distal ends extending into openings in the first and second layers. The distal ends of the contact members having at least one dimension greater than the openings in the first and second surface layers to retain the contact members in the socket housing. The contact members include center portions with major diameters less than the diameters of the center openings, such that an air gap is maintained between the contact members and the center layer.
摘要:
An electrical interconnect between terminals on an IC device and contact pads on a printed circuit board (PCB). The electrical interconnect includes a substrate with a first surface having a plurality of openings arranged to correspond to the terminals on the IC device. A compliant material is located in the openings. A plurality of first conductive traces extend along the first surface of the substrate and onto the compliant material. The compliant material provides a biasing force that resists flexure of the first conductive traces into the openings. Vias extending through the substrate are electrically coupled the first conductive traces. A plurality of second conductive traces extend along the second surface of the substrate and are electrically coupled to a vias. The second conductive traces are configured to electrical couple with the contact pads on the PCB.
摘要:
A method of making a multilayered, fusion bonded circuit structure. A first circuitry layer is attached to a first major surface of a first LCP substrate. A plurality of first recesses are formed that extend from a second major surface of the first substrate to the first circuitry layer. The first recesses are then plated to form a plurality of first conductive pillars of solid metal that substantially fill the first recesses. A plurality of second recesses are formed in a second LCP substrate corresponding to a plurality of the first conductive pillars. The second recess are plated to form a plurality of second conductive structures that extend between first and second major surfaces of the second substrate. The second major surface of the first substrate is positioned adjacent to the second major surface of the second substrate. The first conductive pillars are aligned with the second conductive structures. The stack is then fusion bonded to mechanically couple the first conductive pillars to the second conductive structures.
摘要:
A high density region for a low density circuit. At least a first liquid dielectric layer is deposited on the first surface of a first circuitry layer. The dielectric layer is imaged to create plurality of first recesses. Surfaces of the first recesses are plated electro-lessly with a conductive material to form first conductive structures electrically coupled to, and extending generally perpendicular to, the first circuitry layer. A plating resist is applied. A conductive material is electro-plated to the first conductive structure to substantially fill the first recesses, and the plating resist is removed.
摘要:
A test socket for IC devices includes a multi-layered socket housing with at least one center layer and first and second surface layers. The first and second surface layers have a thickness and dielectric constant less than that of the center layers. A plurality of contact members are located in center openings in the center layer with distal ends extending into openings in the first and second layers. The distal ends of the contact members having at least one dimension greater than the openings in the first and second surface layers to retain the contact members in the socket housing. The contact members include center portions with major diameters less than the diameters of the center openings, such that an air gap is maintained between the contact members and the center layer.
摘要:
An electrical connector and a method of make the same. The electrical connector includes an insulator housing formed with a plurality of through holes extending from a first surface to a second surface of the insulator housing. A flowable polymeric material is located adjacent at least one retention region in each of the through holes. Contact members are positioned within each of the through holes. Energy and/or pressure is applied to the electrical connector so the flowable polymeric material flows into engagement with retention features on the contact members. The electrical connector is cooled so the flowable polymeric material fuses to the contact members in a retention regions.