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Mass Analysis Of The Components Separated From Printed Circuit Boards.  

Mass Analysis Of The Components Separated From Printed Circuit Boards.

Methods of effective and ecological recycling of printed circuit boards (PCBs) are searched all over the world at this time. The material composition and temperature properties of PCB are necessary to be known for an optimal recycling technology.

For this purpose we analyzed weight ratio of the electronic components moulded on the selected kinds of PCBs and next we formulated mathematic model of temperature field in PCB during a grinding process in that the metal layers are separated from the plastic elements. We present the obtained results in this paper.

Read Article...

Author: Hana Charvátová, Dagmar Janáčová, Miloslav Fialka and Karel Kolomazn�k

Organization: Acta Montanistica Slovaca

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Forum

28 pin QFN Pads | Posted by PCB

I have designed 4 Layer PCB with one 28 pin QFN PKG. I have got complaint from Production that the pads which connected to thermal pads (gnd) thru trace is bridging with solder and because of this bridge, pins are not getting soldered properly... »»

Tin HASL finish soldering problems | Posted by T.E.A.M. Services

We are having an issue with a PCB supplier. Their Tin HASL layer seems to be the problem. We have tried working with them to correct their process... »»

Reflow Oven Cool down | Posted by AL

Our facility is typically a high mix low volume site, but lately we are getting increments on our requirements therefore we are kind of struggling to cool down our ovens before to change over a different recipe... »»

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SMTA International

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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

Next Event: Upper Midwest Chapter: Atlantic Canada DFX Chapter Tutorial Program - September 29


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 Programs | Standards & Publications - Online Store

Next Event: What�s New in IPC-A-600H and IPC-6012C Professional Development Workshop at Electronics Midwest - September 27

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September 23, 2010

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