SMTnet Express April 6, 2012, Subscribers: 25060, Members: Companies: 8851, Users: 32937

Modeling and Control of SMT Manufacturing Lines Using Hybrid Dynamic Systems

by: L.G. Barajas, A. Kansal, A. Saxena, M. Egerstedt, A. Goldstein, E.W. Kamen; Georgia Institute of Technology

In this paper we show how hybrid control and modeling techniques can be put to work for solving a problem of industrial relevance in Surface Mount Technology (SMT) manufacturing. In particular, by closing the loop over the stencil printing process, we obtain a robust system that can recover from faulty initial settings, adapt to environmental changes and unscheduled interrupts, and remove discrepancies associated with bidirectional printing machines. Moreover, a timed Petri net argument is invoked for bounding the control effort in such a way that the throughput of the system is unaffected by the introduction of the closed-loop controller. The soundness of the approach is verified on a real SMT manufacturing line.

QFN soldering - My company is doing a project with a lot of QFN. We are not sure how to properly solder a QFN on a PCB...

Damaged PCB.. what do you think? - I need your thoughts on this PCB I have, it seems that it was damaged...

Solder paste for 200C degs continuous operation? - We are currently developing a 180 degs downhole tool...

SMT Factory Liquidation April 16-18 | Online Auction SMT assembly and support equipment auction auction by: Cardinal Circuit

MFLEX - SMT Equipment Auction April 11-12 | Online Auction Late model SMT, Bare Die Attachment and Coating Equipment auction by: X-Line Asset Management

Greater New York Design-2-Part Show

Conference, Trade Show/Exhibition | April 11-12 | Secaucus, NJ, USA | Sponsored by: Design-2-Part Shows

From design ideas, to custom and stock parts, thru final assembly...

NEPCON Korea 2012

Conference, Trade Show/Exhibition | April 11-13 | Seoul, South Korea | Sponsored by: Reed Exhibitions

Korea's leading exhibition for the electronics components and manufacturing industries...

SMT Hybrid Packaging 2012

Conference, Trade Show/Exhibition | May 8-10 | Nuremberg, Germany | Sponsored by: Mesago Messe Frankfurt GmbH

Europe's leading event for System Integration in Micro Electronics...

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

Next Event: Webtorial - Solder Pad Cratering - April 12 - 19

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 Programs | Standards & Publications - Online Store

Next Event: IPC Tin Whiskers Conference - April 17 - 19

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