Samsung Electronics Co., Ltd.

Korea Atomic Energy Research Institute

Sunguk Lee

Youngkyu Lim

Gookmi Song

Gyujin Choi

Doyeon Kim

Changeun Joo

Chilwoo Kwon

Sunghoan Kim

Dongjun Hyun

Myoungho Kim

Kyungmin Jeong

Sunyoung Noh

Shinyoung Kang

Changhoi Kim

The present invention relates to an electric vehicle charging device and to a method for controlling same. The electric vehicle charging device includes a plurality of charging cables installed in one electric vehicle charger. After battery charging of a vehicle, which has arrived first, is completed using one charging cable, a next vehicle is immediately charged using another charging cable such that even in a state where the vehicle, which has arrived first, does not leave a charging station, the next vehicle can be charged. Accordingly, it is possible to improve convenience of an electric vehicle user, and minimize waiting time for charging. Therefore, it is possible to improve the operational efficiency of the electric vehicle charger.

Electric vehicle charging device and method for controlling same

A package substrate may include an insulation substrate, at least one redistribution layer (RDL) and a redistribution pad. The RDL may be included in the insulation substrate. The redistribution pad may extend from the RDL. The redistribution pad may include at least one segmenting groove in a radial direction of the redistribution pad. Thus, the at least one segmenting groove in the radial direction of the redistribution pad may reduce an area of the redistribution pad. Therefore, application of physical stress to a PID disposed over the redistribution pad may be suppressed, and thus generation of cracks in the PID may be reduced. Further, spreading of the cracks toward the redistribution pad from the PID may also be suppressed, and thus reliability the semiconductor package may be improved.

Package substrate and semiconductor package including the same

Package substrate including a redistribution pad extending from a redistribution layer and including segmenting grooves along a redial direction thereof and semiconductor package including the same

Package substrate including segment grooves arranged in a radial direction of a redistribution pad and semiconductor package including the same

The method of manufacturing a connection structure of a semiconductor chip includes: preparing a semiconductor chip having a first surface having a connection pad disposed thereon and a second surface opposing the first surface and including a passivation layer disposed on the first surface and covering the connection pad; forming an insulating layer on the first surface of the semiconductor chip, the insulating layer covering at least a portion of the passivation layer; forming a via hole penetrating through the insulating layer to expose at least a portion of the passivation layer; exposing at least a portion of the connection pad by removing the passivation layer exposed by the via hole; forming a redistribution via by filling the via hole with a conductive material; and forming a redistribution layer on the redistribution via and the insulating layer.

Method of manufacturing connection structure of semiconductor chip and method of manufacturing semiconductor package

Growing community of inventors

Suwon-si, South Korea

Sunguk Lee