公开(公告)号：US10946483B2

公开(公告)日：2021-03-16

申请号：US16517789

申请日：2019-07-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Young-Chul Kwon ,  Man-Hee Han

IPC: B23K26/53 ,  H01L21/78 ,  B23K26/06 ,  B23K26/073 ,  B23K26/067 ,  B23K26/08 ,  B23K26/70

Abstract: A laser apparatus may include a spectrum controller and a spectrum modulator. The spectrum controller may control a center wavelength and/or a bandwidth of a spectrum of a laser beam. The spectrum modulator may modulate the spectrum of the laser beam having the center wavelength and/or the bandwidth controlled by the spectrum controller. Thus, the laser beam may have the spectrum optimal for a semiconductor fabrication process. Particularly, the substrate may be accurately diced using the laser beam having the optimal spectrum.

公开(公告)号：US09816725B2

公开(公告)日：2017-11-14

申请号：US14540435

申请日：2014-11-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Young-Chul Kwon ,  Sung Woo Kim ,  Euy Sung Chu ,  Jee Yong Kim

IPC: F28F3/00 ,  F24F12/00 ,  F28D9/00 ,  F28F9/00

CPC classification number: F24F12/006 ,  F28D9/00 ,  F28D9/0062 ,  F28F9/001 ,  Y02B30/16 ,  Y02B30/563

Abstract: A heat exchanger usable with a ventilator, the heat exchanger having an improved structure so that air passing through the heat exchanger may be prevented from leaking. The heat exchanger of the general inventive concept includes a heat-exchanging element having a plurality of liners stacked in a uniformly spaced state and a plurality of spacers disposed between the liners to define air passages, and corner guides respectively coupled to corners of the heat-exchanging element. Each of the corner guides includes a guide channel forming a space to receive the corner of the heat-exchanging element so that the corner guides securely come into close contact with the heat-exchanging element, and to minimize a loosening of the corner guide due to an adhesive applied between the heat-exchanging element and the corner guide.