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SMTnet Express, March 29, 2018, Subscribers: 30,968, Companies: 10,914, Users: 24,556

Technical Library

Screen Making for Printed Electronics- Specification and Tolerancing

Jesse Greenwood; Hazardous Print Consulting Inc

Six decades of legacy experience makes the specification and production of screens and masks to produce repeatable precision results mostly an exercise in matching engineering needs with known ink and substrate performance to specify screen and stencil characteristics. New types of functional and electronic devices, flex circuits and medical sensors, industrial printing, ever finer circuit pitch, downstream additive manufacturing processes coupled with new substrates and inks that are not optimized for the rheological, mechanical and chemical characteristics for the screen printing process are becoming a customer driven norm. Many of these materials do not work within legacy screen making, curing or press set-up parameters. Many new materials and end uses require new screen specifications.

This case study presents a DOE based method to pre-test new materials to categorize ink and substrate rheology, compatibility and printed feature requirement to allow more accurate screen recipes and on-press setting expectations before the project enters the production environment where time and materials are most costly and on-press adjustment methods may be constrained by locked, documented or regulatory processes, equipment limitations and employee experience.

Forum search results for related keywords: flex circuits..

SMT / PCB Products

PCB ASSEMBLY EQUIPMENT

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GPD Global

Pick & Place

Count On Tools

Solder Paste Stencils

BEST, Inc.

Reflow

Heller

Hand Assembly

Virtual Industries

Reflow

BTU International

PCB INSPECTION

Inspection

Mirtec

Inspection

YXLON

Inspection

VJ Electronix

PCB REWORK

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PDR America

Rework

Kurtz Ersa

PCB SOFTWARE

Software

Unisoft

Software

Cogiscan

Software

KIC

SMT / PCB Equipment Auctions

Late Model SMT Line Machinery, Semiconductor Equipment, Industrial Packaging Equipment, Optical Testing, Preco Die Cutting Press

Ends: April 3

Paul E. Saperstein Co., Inc

Electronic Equipment Mart

Universal Instruments GSM1

Pick and Place Equipment/Feeders

Paul E. Saperstein Co., Inc

Assembleon MC1

Chipshooters / Chip Mounters

IBE SMT Equipment

DEK Horizon 03i

Screen Printing Equipment

AdoptSMT Europe GmbH

Universal Instruments GC-30S

Pick and Place Equipment/Feeders

Capital Equipment Exchange

Samsung CP45F-NEO

Pick and Place Equipment/Feeders

Recon Inc

Viscom S-3088 AOI

AOI / Automated Optical Inspection

ECM Equipment Sales, Inc.

Events Calendar

IPC High Reliability Forum | May 15 - 17 | IPC

Electronics in Harsh Environments Conference | April 24 - 26 | SMTA

PCB Cleaning Webinar Series | ZESTRON Corporation

Training Courses

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Soldering & PCB Rework Courses

Career Center

Senior Design Engineer

Murphy, NC

Aegis Power Systems

Industry Associations Events

SMTA

SMTA - Surface Mount Technology Association is a non-profit international association of companies and individuals (totalling 4,000) involved in all aspects of advanced electronics assembly, surface mount and related technologies.

Membership Info | SMTA Certification | Bookstore | Upcoming Events

IPC

IPC - Association Connecting Electronics Industries is a US-based trade association dedicated to the competitive excellence and financial success of its nearly 2,600 member companies which represent all facets of the electronic interconnection industry, including design, printed wiring board manufacturing and electronics assembly.

Membership Info | Training & Certification | Online Store | Upcoming Events

Technical Editor - Davef (submit your technical articles)

Newsletter Editor - Anna Girouard

SMTnet.com, 98 Elm Street, Portland, Maine 04101 USA, Tel.207-780-0887.

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Metcal CV-5200 Connection Validation Soldering System

Quality Pre-Owned SMT Eequipment - Robo-Tek

Experience the Blackfox Difference - Premier IPC Training & Certification Center

3 YEAR WARRANTY ��� Industry first, market leading warranty on all award winning TruView X-Ray inspection products from Creative Electron

Cogiscan TTC solutions - The enabling technology for Industry 4.0

Europlacer iineo+ SMT pick and place with integrated component tester

Kyzen Free PCB Cleaning Audit

Why Use Plasma Treatment Prior To Conformal Coating. Download the 'The Effects of Plasma Treatment Prior to Conformal Coating' White Paper.

Speedprint SP700avi inline SMT screen printer

Pre-Owned SMT - Siplace, DEK, Asys, Mydata, Rehm and more...

KD Electronics - High quality SMT nozzles, feeders, cutters, filters, etc

Soldertools.net - Rework Tools

Vacuum Tweezers - pick up small components with ease

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KIC - Making Reflow Ovens Smarter

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