Samsung Electro-mechanics Co., Ltd.

Samsung Electronics Co., Ltd.

Yonsei University

Samsung Sdi Co., Inc.

Skhynix Inc.

Jung-Hyun Park

Myung-Sam Kang

Ji-Eun Kim

Hoe-Ku Jung

Jeong-Woo Park

Won-Jun Jang

Seong-Ook Jung

Jung-Hyun Cho

Min-Ho Kim

Je-Gwang Yoo

Sang-eun Lee

Chang-Sup Ryu

Sung-Woo Park

Chang-Hoon Choi

Jung-Geun Jee

Seongook Jung

Yong-Ho Baek

Sang-Hoon Lee

Ki-Hyun Hwang

Woong Hee Lee

Jong-Deuk Son

Yeo-Wan Yun

Hyeon-Deok Lee

Sae-Weon Roh

Jae-Hoon Choi

Hun-Hyeoung Leam

Kyungho Ryu

Hwan-woong Choi

Kwan-heum Lee

Young-Gwan Ko

Hyoeng-ki Kim

Joo-Sung Park

Se-hun Oh

Wook-Je Kim

Sang-Kyoung Lee

Won-Chul Hwang

Jong-Gyu Choi

Jun-ho Jung

Ye-Ran Ji

Kyung-Hwan Ko

Jung-Il Han

Shuhichi Okabe

Nam-Hyun Kim

Sang-Duck Kim

Kyung Ho Ryu

Dong Hun Jung

Nam-Keun Oh

Young-Ji Kim

Sung-Kyu Jung

Doo-Chan Hwang

Jong-Keun Jeon

Chang-Sup Mun

Yong-woo Hyung

Heui-Seog Kim

Young-Chul Lee

Sung-Ho Song

Soon-Wook Jung

Dong-Hoon Jung

Hyeck-Jin Jeong

Seok-Young Yoon

Nam-Hong Lee

Jae-Young Ahn

Won-chul Hwang

Jin-man Chung

Kyung-Ro Yoon

Joon-Young Lee

Young-Sub You

Jae-Yub Kwon

Youngjae An

Kiryong Kim

Hyucksang Yim

Jong-Sang Ban

Jin-Joo Chung

Kyung-Sook Lee

Sang-Youl Lee

Jung-Pil Yu

Jun-Ho Jung

A mandrel that can uniformly form a thickness of an electrode assembly and minimize deformation of an electrode plate upon swelling. The mandrel that is configured to wind an electrode of a rechargeable battery includes: a first reel and a second reel with a gap therebetween, wherein the first reel includes a gap surface facing the second reel, a first front surface and a second front surface that are connected by the gap surface, and a first inclined surface and a second inclined surface that connect the first front surface and the second front surface, wherein the first inclined surface is longer than the second inclined surface.

Mandrel for spiral-winding electrode

Desktop computer

A printed circuit board and a method of manufacturing the same is described herein. The printed circuit board includes a first insulating layer having a first circuit embedded in a first surface thereof, a second insulating layer disposed on a second surface of the first insulating layer, the second insulating layer having a cavity therein, an electronic component mounted inside the cavity with an adhesion member, and a third insulating layer disposed on the second insulating layer to embed the electronic component.

Printed circuit board and method for manufacturing the same

A threshold voltage measuring device may include a metal-oxide-semiconductor (MOS) transistor, a drain voltage clamping circuit configured to control a drain voltage of the MOS transistor wherein the drain voltage having a substantially constant level, and a constant current supply circuit configured to cause a drain-source current to flow through the MOS transistor wherein the drain-source current having a substantially constant magnitude.

Device for measuring threshold voltage of a transistor based on constant drain voltage and constant drain source current

A rechargeable battery includes an electrode assembly including a first electrode plate, a second electrode plate, and a separator between the first electrode plate and the second electrode plate, a can in which the electrode assembly is accommodated, the can including an opening at one side, the opening being hermetically sealed by a cap plate, and a top plate on the cap plate. The top plate includes a first welding unit and a second welding unit that are coupled to the cap plate, and a third welding unit that is between the first welding unit and the second welding unit. The first welding unit is connected to the cap plate and includes first through third welding points. The first through third welding points collectively forming a triangular shape.

Rechargeable battery

A circuit board including a core layer having a first surface and a second surface opposite to the first surface; a first build-up layer and a second build-up layer formed on the first surface and the second surface of the core layer, respectively, and including a conductive pattern and a conductive via; and an outer layer formed on the surface of the first build-up layer and the second build-up layer, wherein at least one build-up layer of the first build-up layer and the second build-up layer comprises a photosensitive insulating layer in which a cavity is disposed and a thermal dissipation unit disposed in the cavity.

Circuit board and method of manufacturing the same

A method of testing a semiconductor device using the test equipment includes loading an undivided printed circuit board (PCB) including unit PCBs in a test equipment. A semiconductor device is mounted in each of the unit PCBs. Product information of the undivided PCB loaded in the test equipment is confirmed. The undivided PCB whose product information has been confirmed is electrically connected to one of a plurality of main testers of the test equipment. Each of the main testers includes a main test interface directly connected to a cloud server in which firmwares for various kinds of tests are stored. The product information of the undivided PCB is transmitted to the main tester electrically connected to the undivided PCB. The main tester to which the product information has been transmitted performs a main test of the undivided PCB using the product information. The undivided PCB on which the main test has been performed by the main tester is unloaded from the test equipment.

Test equipment for testing semiconductor device and methods of testing semiconductor device using the same

An element embedded printed circuit board includes: a substrate including an insulation layer, a first circuit layer formed on a first surface of the insulation layer, and a second circuit layer formed on a second surface of the insulation layer; and an element including an electrode part and embedded in the insulation layer, wherein the electrode part is in contact with the first circuit layer.

Element embedded printed circuit board and method of manufacturing the same

An illumination device includes a conversion unit that controls an emission direction of light emitted from a light-emitting unit included in the illumination device. The conversion unit includes a ball-shaped main body, and may be formed between an upper body, which includes the light-emitting unit, and a lower body. An assembly unit may be formed in the upper body to couple the conversion unit, and the light emission direction may be appropriately controlled by controlling the shape of the ball-shaped main body.

Illumination device that switches light emission direction

Keyboard for tablet computer

A time-to-digital converter includes a first gated ring oscillator, a second gated ring oscillator, a phase adjusting unit, and a digital converter unit. The first gated ring oscillator includes a plurality of first delay cells connected in a cyclic structure and operating in response to an enable signal. The second gated ring oscillator includes a plurality of second delay cells connected in a cyclic structure and operating in response to the enable signal. The phase adjusting unit adjusts a phase of a second circulation signal circulating in the second gated ring oscillator so as for the second circulation signal to have a predetermined phase difference with respect to a first circulation signal circulating in the first gated ring oscillator. The digital converter unit samples output signals of the first delay cells and the second delay cells to output a digital value corresponding to duration of the enable signal.

Time-to-digital converter

Provided is a delay locked loop (DLL) including a ring oscillator (RO) including a delay line to delay a reference clock signal and generate a delayed clock signal, wherein the RO circulates, through the delay line, a feedback clock signal corresponding to the delayed clock signal to synchronize N cycles of the feedback clock signal with a cycle of the reference clock signal (where N is an integer number equal to or larger than 2); and a first frequency divider dividing the frequency of the delayed clock signal by 1/N (where N is an integer number equal to or larger than 2) to generate an output clock signal.

Delay locked loop and method of generating clock

Portable computer

A method of manufacturing a printed circuit board having a bump is disclosed. The method includes preparing a first carrier having a first circuit formed thereon, compressing the first carrier to one surface of an insulation layer such that the first circuit is buried, stacking an etching resist on the first carrier in accordance with where the bump is to be formed and forming the bump by etching the first carrier. In accordance with an embodiment of the present invention, the difference in height between a bump and its adjacent bump in a printed circuit board can be reduced, and thus electrical connection between an electronic component and the printed circuit board can be better implemented.

Method of manufacturing printed circuit board having bump

Growing community of inventors

Suwon-si, South Korea

Jung-Hyun Park