A wafer test device and methods of assembling a wafer test device involve a first laminate structure, and a second laminate structure arranged to interface with a microcircuit of the wafer. The wafer test device includes a compliant layer between the first laminate structure and the second laminate structure. The compliant layer includes an elastomer that exhibits compliance within a limited range of movement.

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.

Devices and methods for a sealed electrical connector are described herein. Some embodiments include a spring connecting a first PCB to a second PCB, wherein the spring includes a first end portion in contact with the first PCB, a second end portion in contact with the second PCB, and a middle portion extending between the first end portion and the second end portion, a spacer surrounding the middle portion of the spring, a first seal seated in a first groove of the spacer and in contact with the first PCB, and a second seal seated in a second groove of the spacer and in contact with the second PCB.

A system and method for providing electromagnetic compatibility (EMC) protection for a removable component through a retractable EMC protection apparatus. The EMC protection apparatus includes an actuation pin, a stabilizing bracket, an actuation arm, a spring brace, an arm spring, a second stabilizing bracket, a rounded pin, an angled engagement feature, an enclosure opening, a conductive surface, a protection device spring, and a retractable EMC protection device. The actuation pin is configured to engage upon a surface of an end product upon insertion of the removable component into the end product. The activation arm is configured to simultaneously compress the arm spring against the stop brace and to push on the angled engagement feature. The angled engagement feature is configured to push in a downward direction on the conductive surface to seal an enclosure opening of the removable component with the retractable EMC protection device.

A spring connector includes: a conductive tube; a movable pin that has a tip end portion protruding from an opening of the tube along an axial direction of the tube; a movable body that is provided inside the tube and that has one end portion in contact with a rear end portion of the movable pin; and a spring that is provided inside the tube and that is configured to urge another end portion of the movable body in a direction in which the movable pin protrudes. The other end portion of the movable body is an inclined surface inclined with respect to the axial direction, and at least one of the one end portion of the movable body and the rear end portion of the movable pin includes a convex portion.

A multi-core connector used for 5G communication repeater, in which as a 5-core connector, with respect to prior art, an overall diameter is reduced from 32-35 mm to about 24.10 mm; the maximum external diameter is reduced from about 39.73 mm to about 27.70 mm, increasing an adaptive frequency from DC-20 GHz to DC-40 GHz to meet a demand of mmWave; an outer conductor of a female connector and that of a male connector abut against each other, so a gap possibly existed in the prior art is cancelled in a contacting interface, so as to enhance a shielding effect; in order to improve a push-on accuracy and avoid a traditional blind mate, right orientation indicating marks are set on a cylindrical surface of the male connector and that of the female connector, respectively; at least two bayonets are arranged circumferentially on an outer insert guiding surface of a male connector shell, and grooves matched with the bayonets are arranged circumferentially on an inner receptacle guiding surface of a female connector shell; a cylinder surface of a coupling nut is provided with spiral grooves, thus after the bayonets enter the spiral grooves, once the coupling nut is rotated up to an angle, the plug and socket can be clicked.

Electrical interposer devices and systems include a body and a plurality of pins. The plurality of pins are disposed within the body. The plurality of pins extend beyond a first side of the body. Similarly, the plurality of pins extend beyond a second side of the body. The plurality of pins are configured to provide electrical communication between a first electrical component and a second electrical component.

Apparatus and method are disclosed for engaging a guide pin for installation or removal. The tool has a housing with a plunger positioned within the housing. A support tube has at least two extensions that protrude from the housing when an engagement mechanism is depressed and grips the guide pin when the engagement mechanism is released.

Devices and methods for a sealed electrical connector are described herein. Some embodiments include a spring connecting a first PCB to a second PCB, wherein the spring includes a first end portion in contact with the first PCB, a second end portion in contact with the second PCB, and a middle portion extending between the first end portion and the second end portion, a spacer surrounding the middle portion of the spring, a first seal seated in a first groove of the spacer and in contact with the first PCB, and a second seal seated in a second groove of the spacer and in contact with the second PCB.

A skin care device formed to cover the left side and right side of a human head and applying a micro current to a mask, includes: a wearing portion extending from the left side of the head through the back side to the right side; and an applying portion formed at each of two ends of the wearing portion and applying the micro current to the mask, wherein the applying portion includes: a conductive portion in contact with the mask; a cover portion to which the conductive portion is coupled and which includes a printed circuit board (PCB) generating the current; and a connecting portion electrically connecting the PCB and the conductive portion to each other, the connecting portion being formed of a conductive spring in elastic contact with the conductive portion.