A socket is to receive a memory module usable in a computing system. A latch is to retain the memory module seated in the socket. The latch is to generate a positive locking latch retention force to prevent removal of the memory module while the latch is in a latched position.

A negative electrode 1 for lithium secondary batteries, which can increase the charge/discharge capacity of a lithium secondary battery, includes a negative electrode current collector, a negative electrode active material layer, and a lithium layer. The negative electrode active material layer is disposed on regions and of the respective surfaces and of the negative electrode current collector. The lithium layer is disposed on uncovered regions and, which are regions of the respective surfaces and of the negative electrode current collector on which the negative electrode active material layer is not disposed. The lithium layer includes lithium.

An electrical connector connecting a male connector and a female connector in a freely engageable and detachable manner, in which: a male tab is provided at the male connector; a housing part where the male tab is inserted is provided at the female connector; a spring state contact piece and a beat piece to sandwich the male tab are provided at the housing part; and a protrusion protruding toward the male tab inserted into the housing part is provided at least one of the contact piece and the beat piece, wherein the protrusion includes a contact part which is in contact with the male tab inserted into the housing part and a sidewall part which is provided at a periphery of the contact part, and the contact part has so-called a star-shape in a plan view.

The invention relates to a direct plug-in element comprising: a plug housing (3), a direct contact (4) with a contact tongue (5), the contact tongue (5) having at least one contact section (50) for directly contacting an exposed contact area on a counterpart, and a catch device (6) for an interlocked connection between the plug housing (3) and the direct contact (4), in order to retain the direct contact (4) in the plug housing (3), the direct contact (4) being arranged in the plug housing (3), the contact tongue (5) having a first and second flat side (52, 53) and a first and second narrow side (54, 55), the catch device (6) comprising a first catch element (60) on the direct contact (4) and a second catch element (61) formed on the plug housing (3) complementary to the first catch element (60), the first catch element (60) being arranged on one of the flat sides (52, 53) of the direct contact (4), and the contact section (50) being arranged on one of the narrow sides (54, 55) of the contact tongue (5).

A contact structure and assembly for a microelectronics device includes first and second electrically conductive contacts being helically shaped. A carrier element is attached to and positioned between the first and second contacts. The first and second contacts are in electrical communication with each other, and the first and second contacts are in a mirror image relationship with each other. A pair of insulating substrates each include electrically conductive members. A contact point on each of the first and second contacts is attached and electrically communicating to respective electrically conductive members such that the first and second electrically conductive contacts between the pair of insulating substrates form an electrically conductive package. A metal layer on the carrier element provides electrical conductivity through a first opening defined by the carrier element between the first and second portions of the helix shaped contact.