US 2026/0150192 A1 · PRINTED CIRCUIT BOARD

Abstract

A printed circuit board includes an insulating layer, a first pad disposed on the insulating layer, and a protective layer disposed on the insulating layer. The protective layer includes a base portion having an opening exposing a portion of the first pad, a dam portion disposed on the base portion, the dam portion having a width less than that of the base portion, and a connection portion between the base portion and the dam portion. The connection portion has a width greater than that of the dam portion and less than that of the base portion. The base portion, the dam portion, and the connection portion are integrally formed.

Claims18

Dependent claims

A printed circuit board comprising:

an insulating layer;
a first pad disposed on or embedded in the insulating layer, exposing an upper surface of the first pad;
and
a protective layer disposed on the insulating layer and the upper surface of the first pad,
wherein the protective layer includes:
a base portion having an opening exposing a portion of the first pad;
a dam portion disposed on the base portion, the dam portion having a width less than that of the base portion;
and a connection portion between the base portion and the dam portion,
the connection portion has a width greater than a width of the dam portion and less than a width of the base portion.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application

19/246,011Filed 23 Jun 2025

Priority

KR 10-2024-017043226 Nov 2024

Published

28 May 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

H05K 1/111
Printed elements for providing electric connections to or between printed circuits: pads for surface mounting, e.g. lay-out
H05K 3/3452
By soldering: solder masks
H05K 3/28
Secondary treatment of printed circuits: applying non-metallic protective coatings
H05K 2201/094
Pads and lands: array of pads or lands differing from one another, e.g. in size, pitch or thickness; Using different connections on the pads

Printed circuit board

Life of this patent

Printed circuit board

Life of this patent

Abstract

Claims18