ISO 14571:2020 PDF
Metallic coatings on non-metallic basis materials — Measurement of coating thickness — Micro-resistivity method
Metallic coatings on non-metallic basis materials — Measurement of coating thickness — Micro-resistivity method
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 9
- Дата публикации:
- 4 ноября 2020 г.
- Издание:
- ISO IS 14571 edition 1 version 1
- ICS:
- 25.220.40
This document specifies a method for non-destructive measurements of the thickness of conductive coatings on non-conductive base materials. This method is based on the principle of the sheet resistivity measurement and is applicable to any conductive coatings and layers of metal and semiconductor materials. In general, the probe has to be adjusted to the conductivity and the thickness of the respective application. However, this document focuses on metallic coatings on non-conductive base materials (e.g. copper on plastic substrates, printed circuit boards). This method is also applicable to thickness measurements of conductive coatings on conductive base materials, if the resistivity of the coating and the base material is significantly different. However, this case is not considered in this document.
Abstract
Overview
ISO 14571:2020 specifies a non‑destructive, micro‑resistivity (four‑point probe) method for measuring the thickness of conductive coatings on non‑conductive base materials. Based on the sheet resistivity principle, the method is applicable to metallic and semiconductor coatings (for example, copper on plastic or printed circuit boards). The standard defines measurement principles, calibration and verification practices, factors affecting uncertainty, and reporting requirements for reliable thickness measurement.
Key Topics
- Measurement principle: Uses a row of four spring‑loaded tips (four‑point probe). A known current is applied through the outer tips and the voltage is measured between the inner tips; thickness is inferred from sheet resistivity and probe geometry.
- Analytical relation: For equal probe tip spacing and t/S
Технические детали
- Технический комитет
- ISO/TC 107 - Metallic and other inorganic coatings
- SKU
- ISO 14571:2020
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