A contact comprises a first cylindrical section, a second cylindrical section, and a transition section connected between the first cylindrical section and the second cylindrical section. The first cylindrical section has a first peripheral wall with a first diameter and a first protrusion rib disposed on the first peripheral wall. The second cylindrical section has a second peripheral wall with a second diameter less than the first diameter and a second protrusion rib disposed on the second peripheral wall.

A method for forming a packaged electronic device includes providing a substrate comprising a lead and a pad. The method includes attaching a thermally conductive structure to the pad and attaching an electronic component to one of the thermally conductive structure or the pad. The method includes electrically coupling the electronic component to the lead, and forming a package body that encapsulates the electronic component and at least portions of the lead, the pad, and the thermally conductive structure, wherein the package body has a first major surface and a second major surface opposite to the first major surface, and one of the first bottom surface of the thermally conductive structure or the bottom surface of the pad is exposed in the first major surface of the package body.

A terminal block according to one aspect of the present disclosure is provided with a plurality of terminals, a bracket and a housing made of resin. Each of the terminals includes a first connecting portion projecting from the housing and a second connecting portion projecting toward a side opposite to the first connecting portion from the housing. The bracket includes a fixing portion projecting from the housing and to be fixed to a case. Each of the first connecting portions includes a connection hole, into which a bolt is inserted. The fixing portion includes a fixing hole, into which a bolt is inserted. An axial direction of each connection hole and that of the fixing hole coincide. The bending stiffness of the fixing portion is smaller than that of each of the first connecting portions.

A terminal block includes: a main body in which a conductor is accommodated; an attachment integrally projecting from the main body, the attachment being fastened and fixed to an attached body by a fastening member; and a rotation regulator in contact with a positioning part of the attached body to position the main body when the attachment is fastened to the attached body by the fastening member. The attachment has a recess at a root of the rotation regulator on a side in contact with the positioning part. The recess has a rounded surface at least on a side of the root of the rotation regulator.

A mold assembly includes a first upper portion, a second upper portion, and a base removably coupled to each other. A method of manufacturing an electrical connector with the mold assembly includes preheating a resin, mixing the resin with a hardener, preheating the mold assembly, injecting the resin hardener mixture into the mold assembly, and curing the resin hardener mixture.

A BGA structure having larger solder balls in high stress regions of the array is disclosed. The larger solder balls have higher solder joint reliability (SJR) and as such may be designated critical to function (CTF), whereby the larger solder balls in high stress regions carry input/output signals between a circuit board and a package mounted thereon. The larger solder balls are accommodated by recessing each ball in the package substrate, the circuit board, or both the package substrate and the circuit board. Additionally, a ball attach method for mounting a plurality of solder balls having different average diameters is disclosed.

Flexible circuits mountable in a standoff region between a chip carrier, e.g., a ball grid array (BGA) component, and a printed circuit board (PCB) of a surface-mount package are described. In an example, a flexible circuit includes holes to receive pins, e.g., solder balls, of the BGA component, and one or more conductive leads electrically connected to respective solder balls within the holes. The conductive leads may interconnect several solder balls within the standoff region, and may be electrically accessible through a test pad located laterally outward from the standoff region. Electrical signals may be monitored or driven through the test pad, and thus, the flexible circuit may be used as a debug tool for detecting and or correcting a design fault of the surface-mount package.

Provided is an electro-optical panel including a first area in which a circuit is formed and a first terminal area and a second terminal area that are arranged side-by-side in a Y direction when viewed from the first area. The first terminal area and the second terminal area are each provided with a terminal group including a plurality of terminals arranged in an X direction different from the Y direction, and at least one of wires from the first terminal area to the first area and from the second terminal area to the first area extends from between the first terminal area and the second terminal area and reaches the first area through an area outside of the first terminal area when viewed from a central axis of the electro-optical panel extending in the Y direction.

In accordance with an aspect of the present disclosure, a contact structure for an electronic device may include a printed circuit board (PCB) including at least one hole vertically formed through the PCB, a housing (e.g., a mechanical part) on which the PCB is seated, and a contact element, at least part of which is brought into contact with the housing disposed on a side of the hole of the PCB and below the same. The contact element may include a contact part soldered on a peripheral portion around the hole, and a protrusion passing through the hole and making contact with the housing disposed below the PCB.

A terminal compartment for installation in the hand hole of a utility pole. The compartment comprises a frame, such as an oval weldment ring with a cover. A terminal block support is movably mounted in the compartment for movement between an operating position and a deployed position. In the operating position, a terminal block fixed to the terminal block support is contained entirely inside the internal space of the utility pole. In the deployed position, the terminal block extends through the access opening at least partially outside the pole. The terminal block support may be an elongate rigid strip mounted vertically inside the compartment with a bottom end hingedly attached to the frame. In this way, once the cover is removed, the terminal block can be folded down to a horizontal position extending out through the access opening and affording easy access for repair and maintenance.