Samsung Electronics Co., Ltd.

Yejin Cho

Dohyung Kim

Hwanwook Park

Young San Kang

Yunho Lee

Won Ho Kang

Bora Kim

Dongyoon Seo

Wonseop Lee

Kwang Won Park

Hyunsoo Shim

Sung Tack Hong

Chang Min Jeon

Seungyeong Lee

A method of operating a host device includes transmitting a read command that requests information related to an eye open monitor (EOM) operation performed in a memory device to the memory device, and receiving a response signal including the information related to the EOM operation performed in the memory device from the memory device.

Method of identifying information related to an eye open monitor (EOM) operation performed in a memory device, and memory system performing the method

A PCB includes a plurality of layers spaced apart in a vertical direction, a first detection pattern and a second detection pattern and pads connected to the first detection pattern and the second detection pattern. The first detection pattern and the second detection pattern are provided in a respective one of a first layer and a second layer adjacent to each other such that the first detection pattern and the second detection pattern are opposed to each other. The pads are provided in an outmost layer. Each of the first detection pattern and the second detection includes at least one main segment extending in at least one of first and second horizontal directions and a diagonal direction. A time domain reflectometry connected to a pair of pads detects a misalignment of the PCB by measuring differential characteristic impedance of the first detection pattern and the second detection pattern.

Printed circuit boards and memory modules

Growing community of inventors

Hwaseong-si, South Korea

Yejin Cho