Measling in PCB refers to the discreet white spots that appear on the circuit board’s base material. In this article, you will learn more about it and how best to avoid it. Measling is a term used to describe the occurrence of white, discreet spots in …

May 20, 2020 · Measling is the occurrence of discrete white spots in the base laminate material of a PCB. Measling usually occurs when the resin is not properly applied to the board during the lamination process. These defects appear during the PCB production cycle and signify a malfunctioning board.

Measling manifests as small, white, and discrete spots or crosses under the PCB laminate surface, resembling measles. These are typically observed around the glass weave of the laminate and are indicative of micro-cracks within the resin.

Jul 17, 2020 · Measling is defined as a visible inter-layer delamination of a Printed Circuit Board, appearing as lighter-colored spots (measles) on an inner PCB layer of a multi-layer PCB (usually 4-layers or more).

What is PCB Measling? Measling refers to the appearance of white spots or “measles” within the fiberglass-reinforced laminate of a PCB. These spots are typically small, localized areas of delamination within the resin matrix, where the glass fibers …

Jan 20, 2023 · What is PCB Measling? As stated, the PCB Measling forms due to the poor implementation of resin directly through the board. As for their appearance, they are likely white spots.

Measling occurs when discrete white spots appear in the base epoxy-glass laminate of a PCB (printed circuit board), usually when the resin is not properly applied to the board during the lamination process due to the presence of moisture or other contaminants.

Mar 18, 2022 · Delve into PCB measling with Absolute Electronics Services. Understand its significance and how to address it for improved electronic device performance. (224) 366-0290 sales@absolutepcbassembly.com

Nov 29, 2024 · Measling is identified as white spots on the PCB arising from fractured glass fibers on the laminate. It is usually provoked by improper lamination or by extreme thermal impact. Measling reduces the mechanical integrity of the PCB but does not result in delamination.

Jan 2, 2024 · Measling refers to a specific problem that can occur during the lamination process of PCB manufacturing. It is characterized by the presence of circular white spots or dots just below the surface of the laminate material.