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Effects of an Appropriate PCB Layout and Soldering Nozzle Design on Quality and Cost Structure in Selective Soldering Processes

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Effects of an Appropriate PCB Layout and Soldering Nozzle Design on Quality and Cost Structure in Selective Soldering Processes

Minimum required clearance for multi-nozzle dip processesThe globalization of markets results in stronger competition with clearly noticeably cost pressure. For companies producing electronic equipment it is therefore of existential importance to reduce production costs whilst maintaining a consistently high quality level of the manufactured products. Manual repair soldering that is expensive, time-consuming and cost intensive is already unacceptable due to the required quality and the reproducibility of the whole manufacturing process.

In addition, densely populated multilayer boards and miniaturised, high-pin-count, fine-pitch devices cannot be efficiently repaired with high quality. "Hidden costs", such as productivity rates, operator training and damaged assembly costs have to be taken into consideration as well.

Special focus has to be set to lead-free applications as manual repair soldering processes can cause enormous thermal problems.

Credit / Source: Reiner Zoch, Christian Ott | SEHO Systems GmbH

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Researching placement machines - where do I start?! | Posted by JeffreyJ

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Defects in PCB manufacturing| Posted by Julie

I work for a CEM. We are having some quality issues with some pcb's that came from China. (I know, big surprise) Can anyone with pcb manufacturing experience look at some pictures I have and give me an opinion as to what could go wrong... »»

PCB Delamination in PTH hole | Posted by tm aw

Is it possible for an old PCB (3 yrs in storage) have delamination at PTH/via hole for double-sided FR4, 1.6mm thk PCB? If 'Yes', is it possible that such delamination can cause open circuit or intermittent failure due to intermittent contact?... »»

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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 International | Bookstore

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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

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