Samsung Electronics Co., Ltd.

Se-Young Yang

Wang-Ju Lee

Sun-Won Kang

Yeo-Hoon Yoon

Provided are a rotation joint capable of compensating for a mismatch due to thermal expansion and a semiconductor device having the same. The rotation joint can include a support member and a first contact member coupled to a first portion of the support member such that a surface of the first contact member is moveable relative to a surface of the support member adjacent to the first contact member. The first contact member can include solder material.

Rotation joint and semiconductor device having the same

Integrated circuit packages include an integrated circuit mounting substrate having a hole that defines an inner wall of the integrated circuit mounting substrate. An integrated circuit is provided in the hole. A sinuous lead frame extends from the integrated circuit and is connected to the inner wall. The sinuous lead frame extends back and forth along a given direction, and may include a U- and/or V-shape, and round and/or jagged portions. Related packaging methods are also disclosed.

Integrated circuit packages including sinuous lead frames

Provided is a wafer level chip scale package that reduces the parasitic capacitance generated between ball pads and the solder balls, and enhances the joint reliability between the ball pads and the solder balls. The wafer level chip scale package provides a conductive pattern in each ball pad section, on which a solder ball is mounted, so as to have a spiral or mesh shape, provides a space defined by the conductive pattern such that a first dielectric layer under the conductive pattern is exposed, and provides the solder ball on a top surface of each ball pad section such that part of the solder ball is inserted into the space defined by the conductive pattern. When viewed from the top, the dielectric layer is exposed from each ball pad section by an area of about 50% or less.

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Seoul, South Korea

Se-Young Yang