WG 3 - TC 119/WG 3

IEC 62899-302-7:2025 provides measurement methods for inkjet printing dot placement evaluation for printed electronics.
NOTE: This document only describes the measurement methods, not the evaluation of the printing system.

IEC 62899-302-6:2025 specifies the method for determining inkjet first drop behaviour based on either visualized droplet images or printed dots on standard substrate. The exact behaviour that is referenced in this document is as follows: jetting speed variation according to the drop numbers, including non-jetting and low jetting speed. This measurement standardization is limited to drop-on-demand type of inkjet including piezo and thermal types and is not applicable to continuous inkjet. This document includes the test equipment, printing procedures, and analysis of drop behaviour. This document is limited to printed electronics application and is not suitable for graphic or other applications.

IEC TR 62899-303-2:2024, which is a Technical Report, lays down the framework for defining standard mechanical dimensions of equipment utilized in the field of printed electronics. While primarily focused on substrate-based printing equipment, the guidelines and standards established in this document also maintain flexibility for application to transient printing equipment. Through this inclusivity, the document seeks to cover a broad spectrum of the industry, ensuring uniformity and adaptability across various printing technologies in the printed electronics domain.

IEC 62899-301-3:2024 defines measurement terms and methods related to the shape errors of printing plate rollers. Measurement terms include radius, total run-out, and three kinds of shape errors of printing plate rollers that are axial deviation, radial deviation, and cross-sectional deviation. The remaining shape error excluding the three errors mentioned above is defined as a residual shape error.
This document applies to printing plate rollers with or without patterns while excluding the pattern area for the measurement.

IEC 62899-302-4:2024 provides measurement methods and specifications for a medium to measure actual inkjet dot placement for printed electronics applications.
NOTE: For this document, a medium is a substrate with (a) certain functional layer(s) to facilitate the ink pinning process (or step). These functional layers are either (a) a liquid absorbing layer or (b) a hydrophilic or hydrophobic layer as shown in Figure 1.

IEC TR 62899-304-1:2023, which is a technical report, provides technical information relating to surface temperature measurement of the substrate containing the printed patterns and films applicable to the photonic sintering system used in the printed electronics industry.

IEC TR 62899-302-5:2023 provides the significant characteristics, parameters and system properties that are relevant for functional inkjet printing for printed electronics. Where possible, existing measurement standards and specifications are cited.

IEC 62899-302-3:2021(E) specifies in-flight imaging methods for the measurement of the direction of ink drops jetted from inkjet print-heads using drop watchers. It does not apply to holographic or other interference techniques, or to any method assessing deposited ink drops. It is specific to drop-on-demand type inkjet print-heads (used in printed electronics equipment).

IEC 62899-302-2:2018(E) specifies the method for determining accurate inkjet droplet volume based on images obtained by drop-in-flight measurement systems. It does not apply to imaging systems using interference fringes, such as holography or phase doppler anemometry. This document is not limited to drop-on-demand inkjet systems, but might not be applicable to continuous inkjet or liquid dispensing systems. This document includes a description of the issues concerning such measurements and consideration of the limits to measurement accuracy.

IEC 62899-303-1:2018(E) defines standard mechanical dimensions (especially related to the web size) of equipment for printed electronics. This document covers web-based printing equipment, but it can be used for sheet-based products.

IEC 62899-301-2:2017(E) defines measurement terms and methods related to the critical dimension of features and the registration accuracy of features on rigid plate masters.
General critical dimensions are defined to evaluate the shape accuracy of features on the plate master. To evaluate the registration accuracy of features on the plate master, the specification for the registration mark for the plate master is specified. Then, common metrology procedures to measure the critical dimensions and the registration accuracy of the plate master are established for device manufacturers, printing master manufacturers and printing master manufacturing equipment vendors. The measurement terms which are measured by agreement between the user and the supplier are measured using the measurement methods given in this document.

IEC 62899-302-1:2017(E) specifies the method for determining inkjet drop speed based on visualized droplet images obtained by a drop analysis system. This measurement standardization is limited to drop-on-demand-type of inkjet and is not applicable to continuous inkjet. This document includes the test process, image processing software algorithm, and analysis of jetting behavior.

IEC 62899-301-1:2017(E) defines measurement terms and methods related to the external dimension of a rigid plate master. Measurement terms include geometrical size such as edge length, edge squareness, edge straightness and thickness, flatness of plate master substrates, and surface roughness of plate master.