Electronic device having multilayered substrate and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-12232260-B2
Application number	US-202217939546-A
Country	US
Kind code	B2
Filing date	Sep 7, 2022
Priority date	Mar 18, 2022
Publication date	Feb 18, 2025
Grant date	Feb 18, 2025

Abstract

An electronic device includes: a multilayered base substrate including a plurality of substrate bases stacked on each other; a first conductive via and a second conductive via penetrating the substrate bases and spaced from each other; a conductive line electrically connecting the first conductive via and the second conductive via to each other and disposed on at least one of the substrate bases of the plurality of substrate bases; and an open stub including a first end and a second end, wherein the first end is connected to a connector of the conductive line, and the second end is opened.

First claim

What is claimed is:

1. An electronic device comprising:
a multilayered base substrate including a plurality of substrate bases stacked on each other;
a first conductive via and a second conductive via penetrating the substrate bases and spaced from each other,
a conductive line electrically connecting the first conductive via and the second conductive via to each other and disposed on at least one of the substrate bases of the plurality of substrate bases, wherein the conductive line is disposed between an upper surface and a lower surface of the first conductive via; and
an open stub including a first end and a second end, wherein the first end is connected to a connector of the conductive line, and the second end is opened.

2. The electronic device of claim 1 , wherein
a length of the conductive line between the first conductive via and the connector are substantially equivalent to a length of the conductive line between the second conductive via and the connector.

3. The electronic device of claim 1 , wherein
the conductive line is divided into divided conductive lines by the connector, and the divided conductive lines have substantially equivalent impedances as each other.

4. The electronic device of claim 3 , wherein
the divided conductive lines have different lengths from each other, and the divided conductive lines have different widths from each other.

5. The electronic device of claim 1 , wherein
an impedance of the open stub relates to an impedance of the conductive line.

6. The electronic device of claim 5 , wherein
an impedance of the open stub is ½ of the impedance of the conductive line.

7. The electronic device of claim 1 , wherein
the open stub is disposed on a same layer as the conductive line.

8. The electronic device of claim 1 , wherein
the open stub is a conductive via penetrating the plurality of substrate bases.

9. The electronic device of claim 1 , wherein
the open stub extends to cross the conductive line.

10. The electronic device of claim 1 , wherein
the open stub includes a first open stub and a second open stub, wherein the first open stub extends in a first direction, and the second open stub extends in a second direction different from the first direction.

11. The electronic device of claim 1 , further comprising
an additional conductive line disposed on a same layer as the conductive line and disposed adjacent to the conductive line,
wherein the open stub extends from the conductive line and is spaced apart from the additional conductive line.

12. The electronic device of claim 1 , wherein
the open stub is a plurality of open stubs, wherein the plurality of open stubs are connected to the conductive line at connectors in the conductive line, wherein the conductive line is divided into a plurality of divided conductive lines by the connectors, wherein lengths of at least two of divided conductive lines of the plurality of divided conductive lines are substantially equivalent to each other.

13. The electronic device of claim 1 , wherein
the open stub is a plurality of open stubs, and impedances of at least two open stubs of the plurality of open stubs are substantially equivalent to each other.

14. The electronic device of claim 1 , further comprising:
a first semiconductor chip attached to one side of the multilayered base substrate and electrically connected to the first conductive via; and
a second semiconductor chip attached to one side of the multilayered base substrate and electrically connected to the second conductive via.

15. The electronic device of claim 1 , further comprising:
a first semiconductor chip attached to one side of the multilayered base substrate and electrically connected to the first conductive via; and
an input/output terminal disposed on one side of the multilayered base substrate and electrically connected to the second conductive via.

16. An electronic device comprising:
a base substrate including a plurality of substrate bases stacked on each other;
at least one semiconductor chip attached to a first side of the base substrate; and
a conductive pattern connected to the at least one semiconductor chip and having a low pass filter,
wherein the low pass filter includes
a first conductive via and a second conductive via penetrating the plurality of substrate bases,
a conductive line disposed between adjacent substrate bases, of the plurality of substrate bases, that are stacked on each other, wherein the conductive line electrically connects the first conductive via and the second conductive via to each other, wherein the conductive line is disposed between an upper surface and a lower surface of the first conductive via, and
at least one open stub including a first end and a second end, wherein the first end is connected to the conductive line at a connector at which the conductive line is divided into substantially equivalent lengths, wherein the second end is opened.

17. The electronic device of claim 16 , wherein
the first conductive via includes a first via stub between a substrate base, of the plurality of substrate bases, on which the conductive line is disposed and a first side of the base substrate, and the second conductive via includes a second via stub between the substrate base on which the conductive line is disposed and a second side of the base substrate.

18. The electronic device of claim 16 , wherein
the conductive line, the at least one open stub, and the first and second via stubs form the low pass filter.

19. A method for manufacturing an electronic device, comprising:
providing a base substrate including a plurality of substrate bases, wherein a conductive line is formed on a substrate base of the plurality of substrate bases; and
forming conductive vias penetrating the base substrate and connected to respective ends of the conductive line, wherein the conductive line is disposed between an upper surface and a lower surface of the first conductive via,
wherein the conductive line is connected to an open stub of which a first end is opened in substantially a middle of the conductive line.

20. The method of claim 19 , further comprising:
before providing the base substrate, forming the conductive line and the open stub on at least one side of the substrate base.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Lee Seungjin
• Kim Jonghoon
• Kim Kyoungsun
• Park Sungjoo
• Yun Jinseong
• Lee Young-Ho
• Cho Jeonghyeon
• Cho Heejin

Classifications

• H05K1/0298 Primary

  Multilayer circuits · CPC title

• H05K3/4038

  Through-connections; Vertical interconnect access [VIA] connections (H05K3/403, H05K3/42 take precedence) · CPC title

• H05K2201/09627

  Special connections between adjacent vias, not for grounding vias · CPC title

• H05K1/0251 Primary

  related to vias or transitions between vias and transmission lines · CPC title

• H05K1/0243

  Printed circuits associated with mounted high frequency components · CPC title