An electrical connector includes an insulating body and multiple terminals. The insulating body has multiple terminal holes running through an upper surface and a lower surface thereof. Each terminal has a connecting portion correspondingly located in a corresponding terminal hole, a conducting portion extending from the connecting portion, an elastic arm formed by bending upward and extending from the connecting portion upward out of the corresponding terminal hole, and a contact portion bending upward and extending from the elastic arm. When a chip module is pressed downward, a bottom surface of each conductive sheet of a circuit board downward abuts a top surface of the contact portion, and the elastic arm deforms downward. The contact portion, the elastic arm, the connecting portion and the conducting portion are integrally formed. A thickness of the connecting portion is greater than a thickness of the contact portion.

An electrical connector is electrically connected to a chip module having multiple contact pads. The electrical connector includes an insulating body having multiple accommodating grooves. Multiple conductive terminals are respectively accommodated in the accommodating grooves. Each conductive terminal has a main body portion accommodated in a corresponding accommodating groove and an extending arm extending forward from an upper end of the main body portion. Each extending arm of the conductive terminals is used to be upward electrically connected to a corresponding contact pad. At least one supporting portion is provided on the insulating body and located at one side of a corresponding accommodating groove. A first guide portion protrudes and extends from a top end of the supporting portion to upward abut the chip module. A horizontal projection of the extending arm of at least one conductive terminal partially overlaps with a horizontal projection of the first guide portion.

Described herein are devices, systems and methods for accessing devices, such as modules or printed circuit boards (PCBs), for electrical communications. Various connectors described herein utilize a side-edge surface of a device, such as a PCB, for connectivity in order to maximize the surface area on the PCB upon which electronic components can be mounted. Such connectors can be used to temporarily connect to devices (e.g., PCBs) for the purposes of debugging, testing and/or configuring circuitry, firmware and/or software. Each such connector utilizes the side-edge surface of a device along its thickness to provide connectivity, which is useful in many situations, including when the device (e.g., a PCB) is to be soldered as a part onto a larger board at a later point in time, or where multiple PCBs are stacked.

An electrical connector for electrically connecting a chip module to a circuit board includes an insulating body, and a plurality of terminals. Each of the terminals has a base accommodated in the insulating body and a mating portion contacting a conductive sheet of the chip module. A plurality of supporting portions extend upward from an upper surface of the insulating body, and an upper end of each of the supporting portions is provided with a crumple portion located below the mating portion of one of the terminals. The chip module is mounted on the electrical connector, the conductive sheet presses the mating portion, the mating portion abuts the crumple portion, and the crumple portion is pressed so that a height of the crumple portion is decreased.

A differential transmission board set includes a mounting board on which a compression connector is mounted and a contact board configured to come into contact with the compression connector. In the contact board, a second conductor layer is a ground layer and has a penetrating hole. The penetrating hole is formed in such a way that a first signal pad and a second signal pad are both located inside an inner edge of the penetrating hole. In the contact board, the penetrating hole is formed to overlap an outer region of the first ground pad and an outer region of the second ground pad.

An electrical connector includes: an insulative housing defining an upper face and a lower face and having a plurality of passageways running though the upper and lower face; and a plurality of contacts secured in the plurality of passageways of the insulative housing. Each of the plurality of contacts includes a base part, an upper arm extending from the base part, and a first part and a second part bent from opposite sides of the base part, a first limb bent from the first part and a second limb bent from the second part plate body. The first limb and the second limb are located staggered in an upper and lower direction, thereby the base part, the first and second part and the first and second limbs together form a tubular structure.

A socket includes a flat-plate-shaped housing, a plurality of contacts supported by the flat-plate-shaped housing, a frame attached to the flat-plate-shaped housing and extending along the flat-plate-shaped housing, a plurality of first solder balls disposed on a lower surface of the flat-plate-shaped housing and facing a circuit board, and a plurality of second solder balls disposed on the lower surface of the flat-plate-shaped housing. The frame defines, in an in-plane direction of the flat-plate-shaped housing, a position of an electronic component having a lower surface including a plurality of pads configured to contact the contacts upon the electronic component being mounted. The first solder balls electrically connect to each of the contacts and electrically connect to the circuit board. The second solder balls are not electrically connected to the contacts.

A contact for electrically connecting a first object and a second object includes a main body adapted to be connected to the first object, and a joint portion protruding from the main body toward the second object. The joint portion is adapted to be joined to the second object via solder. A part or portion of a contour of the joint portion is formed in an anchor shape. The anchor shape defines a normal vector including a vector component extending in an opposite direction to a protruding direction of the joint portion.

An electrical connector includes an insulating body and conductive terminals. The insulating body defines receiving holes, each of the receiving holes receiving a respective one of the conductive terminals. Each receiving hole includes a first hole portion, a second hole portion and a third hole portion. Each conductive terminal includes a main body, an elastic arm, and a connection portion. The main body is received in the second hole portion, the first hole portion and the third hole portion are respectively positioned on two opposite sides of the main body, and the elastic arm is at least partially positioned above the first hole portion. The insulating body includes a support portion located on a side of the main body, and the support portion and the third hole portion are located on the same side of the main body.

An electrical connector mounted on a circuit board and used to be electrically connected to an electrical module includes an insulating body, and multiple terminals provided on the insulating body. At least one of the terminals has: a connecting portion; an elastic arm, bending and extending upward from the connecting portion for being electrically connected to the electrical module; two extending arms, extending from the connecting portion, each of the two extending arms having a free tail end; and an electrical connecting portion, located at one of the free tail ends of the two extending arms for electrically connecting the two extending arms, and for increasing the volume and surface area of the terminal, so as to reduce impedance and improve high frequency thereof.