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SMTnet Express, March 9, 2017, Subscribers: 30,214, Companies: 15,150, Users: 42,034

Technical Library

Screen-Printing Fabrication and Characterization of Stretchable Electronics

Jari Suikkola, Toni Björninen, Mahmoud Mosallaei, Timo Kankkunen, Pekka Iso-Ketola, Leena Ukkonen, Jukka Vanhala & Matti Mäntysalo; Tampere University of Technology

This article focuses on the fabrication and characterization of stretchable interconnects for wearable electronics applications. Interconnects were screen-printed with a stretchable silver-polymer composite ink on 50-µm thick thermoplastic polyurethane. The initial sheet resistances of the manufactured interconnects were an average of 36.2 mΩ/▫, and half the manufactured samples withstood single strains of up to 74%. The strain proportionality of resistance is discussed, and a regression model is introduced. Cycling strain increased resistance. However, the resistances here were almost fully reversible, and this recovery was time-dependent. Normalized resistances to 10%, 15%, and 20% cyclic strains stabilized at 1.3, 1.4, and 1.7. We also tested the validity of our model for radio-frequency applications through characterization of a stretchable radio-frequency identification tag.

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GPD Global


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BEST, Inc.



SMT / PCB Equipment Auctions

Late Model SMT & Memory Test Equipment

Surplus Equipment of Legacy Electronics, Immaculate Facility. 2 Complete SMT Lines...

March 15 - 16 | X-Line Asset Management

Electronic Equipment Mart

Agilent Technologies 5DX 3

Inspection Equipment

Capital Equipment Exchange

DEK Horizon 03iX

Screen Printing Equipment

IBE SMT Equipment

Juki 2060L

Pick and Place Equipment


Universal Instruments Parts

Pick and Place Equipment


Soltec 6622CC

Wave Solder Equipment

JMW Enterprises, Inc.

Yamaha YV100XG

Chipshooters / Chip Mounters

KD Electronics Ltd.

Events Calendar

productronica China - International Trade Fair for Electronic Development and Production

March 14 - 16 | Messe M�nchen GmbH

South East Asia Technical Conference on Electronics Assembly

March 28 - 30 | Surface Mount Technology Association (SMTA)

NEPCON Korea - Korea's largest electronics manufacturing exhibition

Trade Show, Conference | April 5 - 7 | Reed Exhibitions

Training Courses

IPC Training & Certification Courses

Soldering & PCB Rework Courses

PCB Cleaning Webinar Series | ZESTRON Corporation

Career Center

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JBC Soldering Tools, MO

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San Jose, CA, USA

YINCAE Advanced Materials

Industry Associations Events


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


SMT Inventory Offered Two Ways: 'As Is' or 'Production Ready' - CE Exchange

Kyzen Free PCB Cleaning Audit

SMT Eequipment & Parts - Recon

Fast INSPECTION & automatic COMPONENT REEL COUNTING with XQuik AccuCount - Compact X-Ray system

Quality Pre-Owned SMT Eequipment - Robo-Tek

ii-Feed intelligent pick and place feeder

Spare Parts, ICT Repairs, Flying Probe test services - IslandSMT

Speedprint SP700avi inline SMT screen printer

HANDY series Automatic soldering robots - 1 Click SMT - Rework Tools

HELLER - Choose an Oven for Your Reflow Needs

KIC - Making Reflow Ovens Smarter

Replacemnet Nozzles, Feeders, Spare Parts - SMTXtra

MIRTEC MV 6 OMNI High-Speed / High-Performance 3D AOI

Used SMT Equipment - IBE

PCB Cleaning products - Zestron

Late model SMT equipment Auctions - X-Line Asset Management

BTU Pyramax reflow oven - global standard of excellence for SMT reflow, semiconductor packaging and LED packaging and assembly.

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