IEC 62899-302-3:2021

Name: IEC 62899-302-3:2021 — Printed electronics - Part 302-3: Equipment - Inkjet - Imaging-based measurement of drop direction
SKU: IEC 62899-302-3:2021
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Printed electronics - Part 302-3: Equipment - Inkjet - Imaging-based measurement of drop direction

Название (английский):

Printed electronics - Part 302-3: Equipment - Inkjet - Imaging-based measurement of drop direction

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 20
Дата публикации:: 21 января 2021 г.
Издание:: IEC IS 62899 edition 1 version 1
ICS:: 19.080

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Описание (английский):

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).

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты IEC

Overview

IEC 62899-302-3:2021 - "Printed electronics - Part 302-3: Equipment - Inkjet - Imaging-based measurement of drop direction" specifies in-flight, imaging-based methods for measuring the direction of ink drops jetted from drop-on-demand inkjet print-heads used in printed electronics. The standard describes how to use optical drop watchers (single, double or strobe flash) to determine both 2-D projected angles and full 3-D trajectory angles of jetted drops. It explicitly excludes holographic/interference techniques and any methods that assess deposited (post-impact) drops.

Key technical topics and requirements

Measurement scope:

Applies only to in-flight imaging of drops from drop-on-demand print-heads (printed electronics equipment).
Does not cover holographic/interference methods or deposited-drop assessments.

Measurement methods:

Six defined methods: projected-angle measurement using one drop watcher (methods 1–3: double flash, single flash, strobe) and trajectory-angle measurement using two drop watchers (methods 4–6).
Annex A contains measurement formulae, schematics and image-recording guidance for each method.

Instrumentation and calibration:

All trajectory measurement equipment must have a carefully calibrated geometry.
Image plane alignment: the imaging plane must be aligned precisely orthogonal to the inkjet nozzle plane before measurements.

Reporting and reproducibility:

Measurement processes require reporting of conditions (see Clause A.3) and explicit statement of geometry, reference directions and delays used.

Normative reference:

Refers to IEC 62899-302-1 for related imaging-based jetting-speed measurement methods.

Practical applications and who uses this standard

Printed electronics equipment manufacturers: validate print-head performance, ensure accurate drop placement and consistent jetting direction.

Print-head and ink developers: quantify angular spread under specific ink and waveform conditions to optimize formulation and drive signals.

Equipment integrators and contract manufacturers: assess whether drop trajectories risk bridging adjacent conductive features (affecting yield and electrical performance).

Metrology and quality labs: implement standardized in-flight imaging test procedures for QA, acceptance testing and comparative benchmarking.

R&D teams designing high-resolution printed circuits, sensors or displays where precise drop placement is critical.

Related standards

IEC 62899-302-1 - Printed electronics - Equipment - Inkjet - Imaging based measurement of jetting speed (normative reference).

Other parts of the IEC 62899 series cover broader printed-electronics metrology topics (see IEC webstore for the series index).

Keywords: IEC 62899-302-3, printed electronics, inkjet, drop direction, drop watcher, in-flight imaging, drop-on-demand, projected angle, trajectory angles, measurement standard.

IEC 62899-302-3:2021

Abstract

Похожие стандарты

Overview

Key technical topics and requirements

Practical applications and who uses this standard

Related standards

Технические детали

IEC 62899-302-1:2017

Printed electronics - Part 302-1: Equipment - Inkjet - Imaging based measurement of jetting speed

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