1、Printed electronicsPart 302-1: Equipment - Inkjet - Imaging based measurement of jetting speedBS IEC 62899-302-1:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06IEC 62899-302-1 Edition 1.0 2017-08 INTERNATIONAL STANDARD Printed electronics Part 302-1: Equipment I
2、nkjet Imaging based measurement of jetting speed IEC62899-302-1:2017-08(en) National forewordThis British Standard is the UK implementation of IEC 62899-302-1:2017.The UK participation in its preparation was entrusted to Technical Committee AMT/9, Printed Electronics.A list of organizations represen
3、ted on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 9
4、4942 5ICS 37.100.10; 19.080Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2017.Amendments/corrigenda issued since publicationDate Text affectedBRIT
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14、302-1 Edition 1.0 2017-08 INTERNATIONAL STANDARD Printed electronics Part 302-1: Equipment Inkjet Imaging based measurement of jetting speed INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 19.080; 37.100.10 ISBN 978-2-8322-4683-2 Registered trademark of the International Electrotechnical Commission Wa
15、rning! Make sure that you obtained this publication from an authorized distributor. colourinsideBS IEC 628993021:2017 2 IEC 62899-302-1:2017 IEC 2017 CONTENTS FOREWORD . 3 INTRODUCTION . 5 1 Scope 6 2 Normative references 6 3 Terms and definitions 6 4 Inkjet jetting speed measurement 7 4.1 General .
16、 7 4.2 Process for measurement of drop delivery speed (method 1) 7 4.3 Process for measuring instantaneous jetting speed using single flash mode (method 2) 8 4.4 Process for instantaneous jetting speed curve (method 3) 9 4.5 Process for measurement of instantaneous jetting speed using double flash (
17、method 4) 9 Annex A (informative) Additional information on inkjet measurement methods . 11 A.1 Vision-based measurement hardware . 11 A.2 Flash imaging . 11 A.2.1 General . 11 A.2.2 Single event imaging . 11 A.2.3 Multiple event imaging . 11 A.3 Analysis method 2 (instantaneous jetting speed using
18、single flash) . 12 A.4 Analysis method 3 (instantaneous jetting speed curve) . 13 A.5 Analysis method 4 (instantaneous jetting speed using double flash) . 15 A.6 Recorded operating parameters for drop speed measurements . 16 Bibliography 18 Figure A.1 Vision measurement method . 11 Figure A.2 Two di
19、fferent trigger delays for two images . 12 Figure A.3 Jetting speed measurements using two images 12 Figure A.4 Droplet locations in a droplet image 13 Figure A.5 Drop formation measurement 14 Figure A.6 Double flash using single jetting trigger. 15 Figure A.7 Jetting speed measurement using double
20、flash method 16 BS IEC 628993021:2017 2 IEC 62899-302-1:2017 IEC 2017 CONTENTS FOREWORD . 3 INTRODUCTION . 5 1 Scope 6 2 Normative references 6 3 Terms and definitions 6 4 Inkjet jetting speed measurement 7 4.1 General . 7 4.2 Process for measurement of drop delivery speed (method 1) 7 4.3 Process f
21、or measuring instantaneous jetting speed using single flash mode (method 2) 8 4.4 Process for instantaneous jetting speed curve (method 3) 9 4.5 Process for measurement of instantaneous jetting speed using double flash (method 4) 9 Annex A (informative) Additional information on inkjet measurement m
22、ethods . 11 A.1 Vision-based measurement hardware . 11 A.2 Flash imaging . 11 A.2.1 General . 11 A.2.2 Single event imaging . 11 A.2.3 Multiple event imaging . 11 A.3 Analysis method 2 (instantaneous jetting speed using single flash) . 12 A.4 Analysis method 3 (instantaneous jetting speed curve) . 1
23、3 A.5 Analysis method 4 (instantaneous jetting speed using double flash) . 15 A.6 Recorded operating parameters for drop speed measurements . 16 Bibliography 18 Figure A.1 Vision measurement method . 11 Figure A.2 Two different trigger delays for two images . 12 Figure A.3 Jetting speed measurements
24、 using two images 12 Figure A.4 Droplet locations in a droplet image 13 Figure A.5 Drop formation measurement 14 Figure A.6 Double flash using single jetting trigger. 15 Figure A.7 Jetting speed measurement using double flash method 16 IEC 62899-302-1:2017 IEC 2017 3 INTERNATIONAL ELECTROTECHNICAL C
25、OMMISSION _ PRINTED ELECTRONICS Part 302-1: Equipment Inkjet Imaging based measurement of jetting speed FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The o
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36、EC 62899-302-1 has been prepared by Technical committee 119: Printed electronics. The text of this standard is based on the following documents: FDIS Report on voting 119/168/FDIS 119/183/RVD Full information on the voting for the approval of this International Standard can be found in the report on
37、 voting indicated in the above table. This document has been drafted in accordance with the ISO/IEC Directives, Part 2. BS IEC 628993021:2017 4 IEC 62899-302-1:2017 IEC 2017 A list of all parts in the IEC 62899 series, published under the general title Printed electronics, can be found on the IEC we
38、bsite. The committee has decided that the contents of this document will remain unchanged until the stability date indicated on the IEC website under “http:/webstore.iec.ch“ in the data related to the specific document. At this date, the document will be reconfirmed, withdrawn, replaced by a revised
39、 edition, or amended. A bilingual version of this publication may be issued at a later date. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are considered to be useful for the correct understanding of its contents. Users should therefo
40、re print this document using a colour printer. BS IEC 628993021:2017 4 IEC 62899-302-1:2017 IEC 2017 A list of all parts in the IEC 62899 series, published under the general title Printed electronics, can be found on the IEC website. The committee has decided that the contents of this document will
41、remain unchanged until the stability date indicated on the IEC website under “http:/webstore.iec.ch“ in the data related to the specific document. At this date, the document will be reconfirmed, withdrawn, replaced by a revised edition, or amended. A bilingual version of this publication may be issu
42、ed at a later date. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are considered to be useful for the correct understanding of its contents. Users should therefore print this document using a colour printer. IEC 62899-302-1:2017 IEC 2
43、017 5 INTRODUCTION Inkjet technology uses micro nozzles to precisely eject droplets. For printing, these droplets are patterned on a substrate. Inkjet is a mature technology that has been used widely in home, commercial, and industrial applications. When using inkjet technology, the volume of a drop
44、let can be controlled down to the tenth of a picoliter (pl). Furthermore, the droplet can be placed onto the substrate with an accuracy of micrometers (m). Because of these features and others, inkjet technology has emerged as one of the most powerful tools for patterning electronic devices, medical
45、 dispensing, high precision industrial applications, and more. Inkjet patterning for electronics is an additive process wherein the addition of multiple layers of the pattern does not require the removal of any previously deposited material, unlike the conventional photolithography process. Inkjet a
46、lso reduces waste when used in more traditional printing applications and when it is used for dispensing. As a result, inkjet technology significantly reduces waste of what are often very expensive materials and is also more environmentally friendly. As applications for inkjet broaden, a wider varie
47、ty of jetting materials should be dispensed precisely from inkjet heads. For both new and traditional applications, droplet behaviour from the inkjet head should be measured properly to evaluate and control jetting behaviour. Vision-based measurement techniques are widely used in inkjet-based manufa
48、cturing systems, since physical insight into jetting behaviour can be obtained from visual images. The droplet jetting speed and droplet volume are the most frequently measured jetting performance parameters obtained from droplet images. Using information obtained from vision-based measurement syste
49、ms about inkjet droplet formation and characteristics, developers can adjust ink formulations and jetting parameters, in order to improve performance. Note, however, that the measured jet performance and evaluation may vary considerably according to the measurement method since there is no standard measurement procedure available. It may be difficult for process engineers to judge the data sheets of jet performance provided by ink and inkjet head manufac
