公开(公告)号：US20220359341A1

公开(公告)日：2022-11-10

申请号：US17537689

申请日：2021-11-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Tae Hwan KIM ,  Jae Choon KIM ,  Kyung Suk OH

IPC: H01L23/38 ,  H01L23/00 ,  H01L23/31 ,  H01L23/522 ,  H01L23/48 ,  H01L25/16 ,  H01L23/373

Abstract: A semiconductor package includes a first package substrate, a first semiconductor chip on the first package substrate, a plurality of first chip bumps between the first package substrate and the first semiconductor chip, a plurality of second semiconductor chips sequentially stacked on the first semiconductor chip, a molding member which covers the plurality of second semiconductor chips, on the first semiconductor chip, and a thermoelectric cooling layer attached onto a surface of the first semiconductor chip. The thermoelectric cooling layer includes a cooling material layer extending along the surface of the first semiconductor chip, a first electrode pattern which surrounds the plurality of first chip bumps from a planar viewpoint, in the cooling material layer, and a second electrode pattern which surrounds the first electrode pattern from the planar viewpoint, in the cooling material layer.

公开(公告)号：US20130259073A1

公开(公告)日：2013-10-03

申请号：US13845602

申请日：2013-03-18

Applicant: Korea Advanced Institute of Science and Technology ,  SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hong Sig KIM ,  Wang Yuhl OH ,  Tae Hwan KIM ,  Jae Guyn LIM ,  Han Saem CHO

IPC: H01S5/068

CPC classification number: H01S5/06821 ,  H01S3/1303 ,  H01S3/137 ,  H01S5/06216 ,  H01S5/0687 ,  H01S5/141 ,  H01S5/146

Abstract: An apparatus and method for stabilizing an output of a laser is provided. An optical amplifier oscillates light having a first wavelength band. A filter filters the light having the first wavelength band to output light having a second wavelength band narrower than the first wavelength band. The light having the second wavelength band may correspond to an output of a laser. To stabilize the wavelength center of the output laser, at least a portion of the light having the second wavelength band may be transferred to a fiber Bragg Grating (FBG) through a coupler. By performing feedback of a difference between the signal output from the FBG and a laser modulation signal, an offset corresponding to a lead zirconate titanate (PZT) operating parameter of a Fabry-Perot filter may be controlled to automatically stabilize the wavelength center.

Abstract translation: 提供一种稳定激光输出的装置和方法。 光放大器振荡具有第一波长带的光。 滤光器对具有第一波长带的光进行滤光，以输出具有比第一波长带窄的第二波长带的光。 具有第二波长带的光可以对应于激光的输出。 为了稳定输出激光器的波长中心，具有第二波长带的光的至少一部分可以通过耦合器传送到光纤布拉格光栅（FBG）。 通过执行从FBG输出的信号与激光调制信号之间的差异的反馈，可以控制对应于法布里 - 珀罗滤波器的锆钛酸铅（PZT）工作参数的偏移量以自动稳定波长中心。