Abstract: An electronic device is provided. The electronic device includes a substrate, an electronic unit, and a circuit layer. The substrate has a first surface and a second surface, and the second surface is opposite the first surface. The electronic unit is disposed on the first surface. The circuit layer is disposed on the second surface. The circuit layer includes a plurality of first wirings and a plurality of second wirings. The plurality of first wirings are used to transmit a first signal. The plurality of second wirings are used to transmit a second signal. Moreover, a width of one of the plurality of second wirings is different from a width of one of the plurality of first wirings.

Abstract: The present disclosure describes a crown spring terminal, comprising: two connection bands respectively located at two ends of the crown spring terminal; and a plurality of spring lamellae arranged between the two connection bands and electrically connected to at least one of the two connection bands, wherein the plurality of spring lamellae comprise: simply supported beam and cantilever beam; and connection portion provided between at least one pair of adjacent simply supported beam and cantilever beam, to be used for providing electric connection between the at least one pair of adjacent simply supported beam and cantilever beam.

Abstract: An insert molded body of a connector is provided with terminals and a holding member. A supporting beam portion of each terminal extends in a width direction. First and second supporting portions extend upward from end portions of the supporting beam portion, respectively. The first and the second supporting portions have resilience and support first and second contact points, respectively. The first and the second contact points face each other in the width direction. Protruding portions protrude from the supporting beam portion in a pitch direction. The supporting beam portion has a maximum size in the pitch direction which is equal to a maximum size of the first and the second supporting portion. The protruding portions are embedded in the holding member in part, so that the terminal is held by the holding member. The supporting beam portion is visible from above.

Abstract: An electrical connector and assembly are provided. The electrical connector includes an insulative base and terminal columns. Each terminal column includes ground terminals and differential signal terminal pairs, the terminal columns are spaced apart from each other. Each ground terminal has a body portion and three elastic contact portions. Each signal terminal of each differential signal terminal pair has a body portion and an elastic contact portion. In two adjacent terminal columns, orthographic projections of the two elastic contact portions of each differential signal terminal pair are positioned within a range defined by a width of the elastic contact portions of the corresponding ground terminal, and an orthographic projection of the elastic contact portion positioned in a middle of each around terminal in the second direction is positioned within a range defined by a width of the two elastic contact portions of the corresponding differential signal terminal pair.

Abstract: When a first movable housing and a second movable housing are provided, relative positions of a first terminal and a second terminal are prevented from deviating from predetermined positions. A connector 1 includes a fixing housing 2, a first movable housing 31, a second movable housing 32, a first terminal 41, and a second terminal 42. The fixing housing 2 includes the first terminal holding portions 21A that hold the first fixing-side held portions 4B of the first terminals 41, and the second terminal holding portions 22A that hold the second fixing-side held portions 4B of the second terminals 42. The first terminal holding portion 21A and the second terminal holding portion 22A of the fixing housing 2 are integrally molded with resin.

Abstract: Methods, systems, and devices for connection designs for memory systems are described. A memory system may include a package and a printed circuit board (PCB). An interface of the package may be coupled with the PCB via a set of springs, where each spring may include a material configured to deform based at least in part on a shape of the package, a shape of the PCB, or both. The memory system may also include a set of latches that may secure the package in a fixed position relative to the PCB. That is, the set of springs may provide an electrical connection between the package and the PCB, and the set of latches may provide a mechanical connection between the package and the PCB. In some examples, the package, the PCB, or both, may include one or more connection structures configured to receive the latches.

Abstract: Provided is a connector device including: a first connector; and a second connector connected to the first connector. The first connector includes a first terminal, a first lock member, and a first housing. The second connector includes a second terminal, a second lock member, and a second housing. The first housing has a first plate portion, a first inner protruding portion, a first outer protruding portion, a first inner space, and a first outer space. The second housing has a second plate portion, a second inner protruding portion, a second outer protruding portion, and a second inner space. The first lock member has a first inner lock portion and a first outer lock portion. The second lock member has a second inner lock portion locked to the first inner lock portion and a second outer lock portion locked to the first outer lock portion.

Abstract: Providing a housing including an insulating material and a terminal integrated with the housing and including a conductive material, wherein the housing includes a protrusion extending in the longitudinal direction of the connector, the terminal includes a plate portion that extends in the vertical direction, the surface thereof exposed to one side surface of the protrusion; an opposing plate portion that extends in the vertical direction, the surface thereof exposed to another side surface of the protrusion; a coupling portion that couples the upper end of the plate portion and the upper end of the opposing plate portion; and a securing portion connected to the lower end of the plate portion, and a stepped portion is formed at the boundary of the surface of the plate portion and the surface of the coupling portion and the surface of the securing portion is covered by the insulating material.

Abstract: A connector (10) includes a set of type 1 contacts (4A) disposed in a type 1 holding area, the type 1 contacts (4A) being disposed facing each other, and a type 2 contact (4B) disposed in each of two type 2 holding areas sandwiching the type 1 holding area. When viewed from above, at least a portion of the type 2 contact (4B) is disposed in a range obtained by extending, in a first direction in which the type 1 holding area and the two type 2 holding areas are arranged, a region in which the set of type 1 contacts (4A) oppose each other in a second direction orthogonal to the first direction. Additionally, the type 2 contact (4B) includes a connecting portion that is connected to the circuit of the circuit board, and a contacting portion that is disposed at a position separated, from the connecting portion in a normal direction of an installation surface to the circuit board, and that contacts a terminal of a mating connector.

Abstract: An instrument tracker includes a case having an interior and exterior with a plurality of instrument seats, an inertial measurement unit (IMU), and a controller. The IMU and controller are arranged within the interior of the case and the controller is disposed in communication with the IMU and is responsive to instructions recorded on a memory to receive position information from the IMU, determine at least one of position and orientation of an instrument fixed relative to the case by the plurality of instrument seats using the position information received from the IMU, and transmit the at least one of position and orientation to a display device for displaying position and orientation of the instrument relative to a predetermined insertion path through a subject between an entry point on the surface of the subject and a region of interest within the interior of the subject. Instrument tracking systems and methods tracking position of instruments are also described.

Abstract: Various circuit board systems and methods of use and manufacture thereof are disclosed. A circuit board system can have a first circuit board including a substrate and a first component susceptible to electromagnetic interference carried by the substrate. The system can also include a second circuit board including a second substrate, and a shield engaged to the substrate of the first component, the shield at least partially covering the first component and being configured to protect the first component from electromagnetic interference, wherein the shield couples the substrate of the first circuit board to the substrate of the second circuit board.

Abstract: The present disclosure proposes a board-to-board connector terminal and a connector. The board-to-board connector terminal comprises: a male connector terminal including a first part; and a female connector terminal including a second part, wherein in the case of the male connector terminal and the female connector terminal adaptively installed, the male connector terminal is in contact with the female connector terminal; when the male connector terminal is detached from the female connector terminal, the second part abuts against the first part to prevent the male connector terminal being detached from the female connector terminal; in the case of the male connector terminal forcibly detached from the female connector terminal, the first part pushes the second part to cause the second part to be peeled off, such that the female connector terminal is damaged and does not work properly.

Abstract: Provided is an electric connector which includes: a housing; and a pair of reinforcement brackets reinforces both end sides of the housing in a longitudinal direction, wherein the housing has a bottom wall, a pair of short walls, a pair of long walls, an island-shaped protruding wall surrounded by the short walls and the long walls, and pairs of corner portions between a corresponding pair of short and long walls, each reinforcement bracket has an outer plate portion, a short wall protection portion, a pair of side plate portions, a pair of long wall protection portions, a pair of connection portions connecting the outer plate portion to the side plate portions, and a pair of corner protection portions, and each corner protection portion extends from either one of the outer plate portion or the side plate portions, and is formed to cover an upper surface of the corner portions.

Abstract: First terminals and second terminals are alternately arranged in the pitch direction. The first terminal has a first mount portion, and the second terminal has a second mount portion. Each of the supporting portions is resiliently deformable at least in part and extends from the first contact portion to support the second contact portion. The second contact portion of each of the first terminals and the second terminals faces the first contact portion in a width direction and is movable in the width direction due to resilient deformation of the supporting portion. In the second terminal, the extension portion extends from the second contact portion, and the second mount portion is formed in a part of the extension portion. The second mount portion is located apart from the first mount portion in the width direction.

Abstract: A package board according to an embodiment of the present disclosure includes a first core layer, a feeding wiring disposed on the first core layer, and a first connector mounted on the first core layer and electrically connected to the feeding wiring through a row directional side thereof. The feeding wiring includes a first portion extending in a column direction of the first core layer and a second portion bent from the first portion to extend in a row direction of the first core layer.

Abstract: Provided is a board-to-board socket, including a socket body, socket terminal, and socket strengthener. The socket body includes a bottom wall, socket side walls, socket guide parts formed at lateral ends of the socket body, and an island part protruding upwards from the bottom wall. Socket guide parts each include a plug guide part receiving cavity, longitudinal outer peripheral wall, and lateral outer peripheral walls. The socket strengthener includes a main body part, lateral outer peripheral wall, and elastic arm parts. Tops of the elastic arm parts bend and extend towards longitudinal outer sides to form hitching part cavities hitched on top faces of the lateral outer peripheral walls.

Abstract: An axially resilient press-in contact pin includes a metal body and an electrically conductive, elastic element. The metal body includes a pin-shaped section and a press-in spring. The press-in spring is on a first end of the pin-shaped section. The elastic element surrounds at least portions of the pin-shaped section and extends beyond a second end (i.e., free end region) of the pin-shaped section.

Abstract: An electrical connecting apparatus according to the present disclosure is characterized in including a first electrode region in which a liquid metal is filled in a first recessed part that is capable of conducting with a substrate electrode of a first wiring substrate, a second electrode region in which a liquid metal is filled in a second recessed part that is capable of conducting with a substrate electrode of a second wiring substrate opposing the first wiring substrate in a vertical direction, and a connector that causes conduction between the first electrode region and the second electrode region by bringing one end part into contact with the liquid metal of the first electrode region and bringing the other end part into contact with the liquid metal of the second electrode region.

Abstract: The present disclosure pertains to a board connector comprising a plurality of radio frequency (RF) contacts for transmitting RF signals; an insulating part supporting the RF contacts; a plurality of transmission contacts coupled to the insulating part and between a first RF contact and a second RF contact, such that the first RF contact and the second RF contact are spaced in a first axial direction; and a grounding housing to which the insulating part is coupled, the grounding housing comprising an inner grounding wall, an outer grounding wall spaced apart from the inner grounding wall, and a grounding connection wall coupled to each of the inner and outer grounding walls, wherein the inner and outer grounding walls are double-shielding walls that surround the side of an inner space, and the first RF contact and the second RF contact are placed in the inner space surrounded by the double-shielding walls.

Abstract: A multilayer printed circuit board having a stackup including an upper half of the stackup and a lower half of the stackup, the multilayer printed circuit board having a top exposed surface and a bottom exposed surface, a first trace and via structure, having one portion disposed on the top exposed surface and another portion disposed within the upper half of the stackup, a second trace and via structure, having one portion disposed on the top exposed surface and another portion disposed within the upper half of the stackup, and first electrical components and second electrical components disposed on the top exposed surface of the multilayer printed circuit board and associated, respectively, with the first trace and via structure and the second trace and via structure, wherein the first electrical components are mounted orthogonally with respect to the second electrical components.

Abstract: An electrical connector set includes a first substrate having a first conductor, and a first internal terminal having a first mounting portion and a second mounting portion that are mounted on the first conductor of the first substrate and a projecting portion extending in a curved shape between the first mounting portion and the second mounting portion. The electrical connector set further includes a second substrate having a second conductor, and a second internal terminal having a third mounting portion that is mounted on the second conductor of the second substrate and a recessed portion forming the third mounting portion at a bottom portion, in which the projecting portion of the first internal terminal and the recessed portion of the second internal terminal are configured to be fitted to each other.

Abstract: A method for configuring an electrical contact zone of a terminal includes providing the terminal having a contact portion extending in a longitudinal direction of the terminal, forming a contact dome having a radius in the contact portion of the terminal, and forming a contact zone in the terminal at the contact dome. The contact zone is formed subsequent to a start of the step of forming the contact dome.

Abstract: A high voltage side hold-down includes a flat-plate shaped reinforcing plate part, a solder leg projecting downward from the reinforcing plate part, and a hold-down elastic piece supported like a cantilever beam by the reinforcing plate part. The hold-down elastic piece includes an elastic piece body, a contact part projecting upward beyond a CPU board opposed surface, and a displacement restriction part for restricting upward displacement of the contact part, sequentially from the base to the end of the hold-down elastic piece. A housing is formed in such a way that the contact part does not come into contact with the housing when the contact part is displaced downward and no longer projects upward beyond the CPU board opposed surface.

Abstract: Various configurations of compressible electrical assemblies are disclosed herein. Each variation of the compressible electrical assemblies includes at least one dielectric, an inner conductor and an outer conductor. Each inner and outer conductor may be configured as a compressible contact. One embodiment of a compressible electrical assembly includes an inner compressible contact, and outer compressible contact and a dielectric disposed at least partially between the inner compressible contact and the outer compressible contact. Each compressible contact also has a divaricated-cut section with a plurality of cuts defined by at least one cut angle measured between a pair of opposing inner surfaces.

Abstract: An interconnection for flex circuit boards used, for instance, in a quantum computing system are provided. In one example, the interconnection can include a first flex circuit board having a first side and a second side opposite the first side. The interconnection can include a second flex circuit board having a third side and a fourth side opposite the third side. The first flex circuit board and the second flex circuit board are physically coupled together in an overlap joint in which a portion of the second side for the first flex circuit board overlaps a portion of the third side of the flex circuit board. The interconnection can include a signal pad structure positioned in the overlap joint that electrically couples a first via in the first flex circuit board and a second via in the second flex circuit board.

Abstract: An information handling system includes a printed circuit board. The printed circuit board includes first and second pads of a first differential pair, a hatched ground, and first and second traces of a second differential pair. The first and second pads of the first differential pair are routed a surface of the printed circuit board. The hatched ground routed within a first layer of the printed circuit board. The first and second traces of the second differential pair are routed below the first and second pads and the hatched ground within a second layer of the printed circuit board. The hatched ground dampens crosstalk between signals on the traces and signals on the differential pair pads.

Abstract: A plug connector for a board-to-board connector according to an embodiment includes: a connector main body which includes one pair of first sidewalls extended in a first direction and facing each other, and one pair of second sidewalls extended in a second direction perpendicular to the first direction, and facing each other; one pair of fitting nails which are over-molded in the plug connector; and a plurality of plug terminals which are over-molded on the one pair of second sidewalls, wherein each of the one pair of fitting nails includes: an upper surface contacting an upper end of the first sidewall; a central reinforcement portion which is curved downward from the upper surface to come into contact with at least a portion of an outer surface of the first sidewall; one pair of lateral reinforcement portions which are extended from the upper surface and are curved downward to come into contact with at least portions of respective outer surfaces of the one pair of second sidewalls; and one pair of arm porti

Abstract: A connector is provided with a half body part, each of which including a connector main body and a plurality of terminals arranged at a predetermined pitch and integrated with the connector main body by insert molding, a main body end part formed at both ends of the connector main body by coupling the connector main bodies of the half body parts arranged in parallel, and a reinforcing metal fitting integrated with the main body end part.

Abstract: A printed structure comprises a device comprising device electrical contacts disposed on a common side of the device and a substrate non-native to the device comprising substrate electrical contacts disposed on a surface of the substrate. At least one of the substrate electrical contacts has a rounded shape. The device electrical contacts are in physical and electrical contact with corresponding substrate electrical contacts. The substrate electrical contacts can comprise a polymer core coated with a patterned contact electrical conductor on a surface of the polymer core. A method of making polymer cores comprising patterning a polymer on the substrate and reflowing the patterned polymer to form one or more rounded shapes of the polymer and coating and then patterning the one or more rounded shapes with a conductive material.

Abstract: An electrical connector that includes a plurality of inner terminals that are arrayed in a first direction and extend in a second direction, an insulating member that has a terminal holding part that holds the inner terminals, and an outer terminal that surrounds the inner terminals when viewed in a third direction. The terminal holding part includes an insulating extending part that extends in the first direction. The outer terminal includes an outer extending part that extends in the first direction while being spaced apart from the insulating extending part along at least part thereof. An opening that extends in the first direction is formed between the insulating extending part and the outer extending part. The states of inner mounting parts of the inner terminals can be checked through the opening.

Abstract: An orthogonal electrical connector system includes vertical electrical connectors that are configured to e mated to each other so as to place respective pluralities of first and second substrates that are oriented orthogonal to each other in data communication with each other through the mated electrical connectors. Other connector systems are also disclosed.

Abstract: A connector (1) according to the present disclosure includes: a first connector (10) including a pair of first contacts (30a) each of which includes a first contacting portion (34a) and that are attached to a first insulator (20); a second connector (50) including a pair of second contacts (70a) each of which includes a second contacting portion (74a) and that are attached to a second insulator (60), the second contacting portion (74a) being in contact with the first contacting portion (34a) in a fitted state; and a shield member that is attached to the first insulator (20) and the second insulator (60).

Abstract: Provided is a connector capable of suppressing deformation and breakage due to an external force, and the connector can be fitted with a counter connector by entering an accommodation space of the counter connector, and includes a housing that holds a contact and includes a side wall at an end portion in a first direction intersecting a fitting direction in which the connector and the counter connector are fitted with each other, a frame that surrounds the housing, and a reinforcing member having a higher rigidity than that of the housing, in which connector, part of the reinforcing member is attached to the side wall while being interposed between an outer surface and an inner surface of the side wall, the outer surface being situated on a side facing the frame, and the inner surface being situated on an opposite side from the outer surface.

Abstract: A connector is provided with a half body part, each of which including a connector main body and a plurality of terminals arranged at a predetermined pitch and integrated with the connector main body by insert molding, a main body end part formed at both ends of the connector main body by coupling the connector main bodies of the half body parts arranged in parallel, and a reinforcing metal fitting integrated with the main body end part.

Abstract: A circuit board assembly is provided and includes a first circuit board, a second circuit board and a first connecting module. The first connecting module includes a first connecting wire, a first connector and a second connector. The first circuit board includes a first processor, and the second circuit board includes a second processor. One end of the first connector is connected to one end of the first connecting wire, and the other end of the first connector is connected to the first circuit board. One end of the second connector is connected to the other end of the first connecting wire, and the other end of the second connector is connected to the second circuit board. The first connector is adjacent to the first processor, and the second connector is adjacent to the second processor.

Abstract: An electrical connector assembly and its manufacturing method are described, wherein the electrical connector assembly includes a bridging conductive component. The multiple conductive terminals achieve electrical connection through the bridging conductive component without the use of jumper wires, meeting the requirements for signal transmission in the electrical connector assembly. The manufacturing method of the electrical connector assembly involves the step of combining multiple electrical connector components with the bridging conductive component. Thus, during the assembly of the electrical connector assembly, customization of the electrical connection relationship of conductive terminals can be achieved by adjusting multiple electrical connector components and the bridging conductive component. This customization ensures compliance with the requirements for signal transmission in the electrical connector assembly, meeting the specific needs and developments of electronic devices.

Abstract: A circuit mounting assembly can include a circuit board, a chassis, a sheet of thermally conductive dielectric material, and one or more fasteners configured to compress the sheet between the circuit board and the chassis to provide vibration isolation and electrical isolation between the chassis and the circuit board, and to provide thermal conduction between the chassis and the circuit board.

Abstract: An electrical connector assembly includes an electrical plug connector and an electrical receptacle connector corresponding to the electrical plug connector. The electrical plug connector includes a plug insulated housing as well as plug terminals and buckling portions on the plug insulated housing. The electrical receptacle connector includes a receptacle insulated housing as well as receptacle terminals and locking components on the receptacle insulated housing. The locking components at the two sides of the electrical receptacle connector are firmly buckled with the buckling portions at the two sides of the electrical plug connector. Therefore, during the use of the electrical connector assembly, the electrical plug connector can be prevented from detaching off the electrical receptacle connector.

Abstract: Implementations of a semiconductor package may include: a substrate, a case coupled to the substrate, and a plurality of press-fit pins. The plurality of press-fit pins may be fixedly coupled with the case. The plurality of press-fit pins may have at least one locking portion that extends from a side of the plurality of press-fit pins into the case and the plurality of press-fit pins may be electrically and mechanically coupled to the substrate.

Abstract: A connector is mounted on a circuit board when used. The connector has a housing and a terminal which has a held portion, a supporting portion, a coupling portion, a contact portion and a guiding portion. The coupling portion has a fulcrum. The guiding portion receives a vertical force from a mating terminal at a specific contact location. The guiding portion receives, at the specific contact location, a frictional force caused by friction between the mating terminal and the guiding portion upon movement of the mating terminal on the guiding portion. An action line of a combined force of the vertical force and the frictional force intersects with one of the circuit board and the housing at a reference point. The fulcrum is positioned beyond the reference point in a first orientation of a first horizontal direction.

Abstract: A plug system includes a plug connector part, which has a plug connector housing and a multiplicity of connection terminals, which are arranged on the plug connector housing and which each have a spring element forming a clamping leg, and a plug device, which has a multiplicity of electrically conductive plug elements. The plug elements of the plug device for electrically contacting the connection terminals of the plug connector part can each be connected in a plugging manner along a plugging direction to one of the connection terminals of the plug connector part and, in a connected position, are mechanically operatively connected to the clamping leg of the spring element of the respective connection terminal. At least some of the plug elements have a different height measured along the plugging direction.

Abstract: A battery module of the present disclosure may include, a cell assembly including at least one battery cell, a busbar assembly including a terminal busbar electrically connected to an electrode lead of the cell assembly, and a busbar frame covering the cell assembly on at least one side, and an insulating frame covering the busbar assembly from the outside, and further including a nut which is set to a floatable size in a nut insertion chamber adjacent to a terminal busbar and provided with a space inside the insulating frame, and is mounted in the nut insertion chamber.

Abstract: A connector includes a plurality of inner terminals and an outer terminal. The plurality of inner terminals are arrayed with intervals therebetween in a direction. The plurality of inner terminals are terminals that are connected to a ground potential. The outer terminal is disposed around the group of the plurality of arrayed inner terminals and are connected to a ground potential. The outer terminal includes side wall members that are shaped so as to extend in the direction and be parallel to the plurality of inner terminals. The inner terminals include connection parts that are connected to the side wall members.

Abstract: An electrical connector is capable of performing stable inspection without affecting an extraction force of a connector engagement portion. The electrical connector includes a housing having an electrical insulation property, an internal terminal held by the housing, and an external terminal held by the housing, with the external terminal to be electrically connected to a ground. The external terminal includes a fitting portion having a first engagement wall portion at one side and having a second engagement wall portion at the other side in a plan view from a connector insertion/extraction direction. A first engagement portion is formed at the first engagement wall portion, and a second engagement portion is formed at the second engagement wall portion.

Abstract: Described herein are battery modules and methods of fabricating thereof. In some examples, a battery module comprises an enclosure, separated into two enclosure portions and a thermal portion, positioned between the two enclosure portions. Two enclosure portions are in part defined by side walls, which can be tapered. The thermal portion comprises two thermal walls, which are operable as the bottoms of the two enclosure portions and form a thermal cavity between these thermal walls. In some examples, the enclosure is a monolithically cast component. Alternatively, the enclosure can be partially cast with one thermal wall welded thereafter to a cast subassembly. The battery module also comprises two sets of batteries, each positioned into a corresponding enclosure portion. Each battery set is interconnected with an interconnecting assembly, positioned between the battery set and the corresponding cover, for this enclosure portion.

Abstract: Provided is a connector which includes: an insulating housing; and a conductive terminal, in which the terminal is fixed to the housing, and includes a mounting portion connected to a board and a contact portion protruding from the mounting portion in a fitting direction, and a thickness of the contact portion is greater than a thickness of the mounting portion in a direction perpendicular to the board.

Abstract: A structural connector system for providing an electrical connection between electronic componentry is disclosed. The structural connector system includes a structural member, including an electrically insulating matrix, an electrically conducting path, a first end surface, a second end surface, and a first component engaging surface. The first component engaging surface includes a first mechanical coupler configured to mechanically couple a first electronic component or a first chassis component to the structural member and a first electrical coupler configured to electrically couple the first electronic component or the first chassis component to a first end of the electrically conducting path.

Abstract: An electrical connector may include an insulating body, metal terminals exposed in a mating port of the insulating body, and a metal housing that includes walls. The walls may encircle the insulating body such that a first space is located between a first side of the insulating body and a first wall of the metal housing, a second space is located between a second side of the insulating body and a second wall of the metal housing, and a length of the first space is different from a length of the second space. The first and second walls may face in opposite directions. The mating port may receive a portion of a mating connector. The first wall may include first latching portions in communication with the first space, and the second wall may include second latching portions in communication with the second space.

Abstract: A substrate unit includes a first connector including a first terminal and a first housing accommodating the first terminal, and to be connected to an external connector, a first substrate on which the first connector is mounted, a second connector including a second terminal and a second housing accommodating the second terminal, and to be connected to the external connector, a second substrate on which the second connector is mounted and a case accommodating the first substrate and the second substrate. The first housing is provided with a first locking portion. The second housing is provided with a second locking portion. The first locking portion and the second locking portion are locked to each other. The first terminal and the second terminal are disposed to face an opening provided in the case through which the external connector is to be connected to the first connector and the second connector.

Abstract: A printed structure comprises a device comprising device electrical contacts disposed on a common side of the device and a substrate non-native to the device comprising substrate electrical contacts disposed on a surface of the substrate. At least one of the substrate electrical contacts has a rounded shape. The device electrical contacts are in physical and electrical contact with corresponding substrate electrical contacts. The substrate electrical contacts can comprise a polymer core coated with a patterned contact electrical conductor on a surface of the polymer core. A method of making polymer cores comprising patterning a polymer on the substrate and reflowing the patterned polymer to form one or more rounded shapes of the polymer and coating and then patterning the one or more rounded shapes with a conductive material.