公开(公告)号：US20240071983A1

公开(公告)日：2024-02-29

申请号：US18227697

申请日：2023-07-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Bongken YU ,  Cheolsoo HAN ,  Kwangjin BAE ,  Youngjin JANG ,  Inwook JUNG ,  Minchul CHO

IPC: H01L23/00 ,  B23K3/06

CPC classification number: H01L24/75 ,  B23K3/0623 ,  H01L2224/75804

Abstract: A solder ball attaching apparatus includes a working die, having an internal space maintained in a vacuum state, and a plurality of lifting members installed on the working die to be movable upwardly and downwardly. The working die may be provided with an upper plate on which the lifting members are installed. The upper plate may be provided with an insertion groove, into which an upper end portion of the lifting member is inserted when the lifting member is lowered, and a locking groove into which a lower end portion of the lifting member is inserted when the lifting member is raised. The lifting member may be lowered by a chip when the chip is seated on the lifting member and may be raised by elastic restoring force when the chip is removed.

公开(公告)号：US20250086113A1

公开(公告)日：2025-03-13

申请号：US18794433

申请日：2024-08-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chonghyun LEE ,  Minkyu KIM ,  Seokha SHIN ,  Youngjin JANG

IPC: G06F12/0862 ,  G06F12/0804 ,  G06F12/123

Abstract: An operating method of a storage controller includes, storing data and a source type of the data in a cache memory, when a cache hit occurs, determining a source type of data corresponding to the cache hit and updating a hit count corresponding to the determined source type among a plurality of hit counts, determining a source type with a dominant hit rate among a plurality of source types based on the plurality of hit counts, operating in a first mode when a result of the determining indicates that the source type with the dominant hit rate is a first type, and operating in a second mode when the result of the determining indicates that the source type with the dominant hit rate is a second type.