The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 12, 2024

Filed:

Nov. 16, 2021
Applicant:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Inventor:

Junghoon Kang, Anyang-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/498 (2006.01); H01L 23/31 (2006.01); H01L 23/00 (2006.01);
U.S. Cl.
CPC ...
H01L 23/49838 (2013.01); H01L 23/3128 (2013.01); H01L 23/49822 (2013.01); H01L 23/49894 (2013.01); H01L 24/16 (2013.01); H01L 2224/16227 (2013.01);
Abstract

A semiconductor package including a redistribution substrate having lower and upper surfaces, the redistribution substrate including a pad on the lower surface, the pad having a first surface and a second surface, and a redistribution layer electrically connected to the pad; a semiconductor chip on the upper surface of the redistribution substrate and electrically connected to the redistribution layer; an encapsulant encapsulating at least a portion of the semiconductor chip; and a protective layer on the lower surface of the redistribution substrate and having an opening exposing at least a portion of the first surface of the pad, wherein the portion of the first surface exposed through the opening includes a recess surface including regular depressions and protrusions and being depressed inwardly toward the second surface, and an edge surface including irregular depressions and protrusions and having a step difference with respect to the recess surface.


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