Cleaning is an added step to the electronics assembly process, meaning that the reliability and yield benefits of cleaning must outweigh the additional cost, energy use, and time involved in operating cleaning equipment. These products tangibly reduce costs, increase flexibility for customers, and can have added environmental benefits like lowering VOC emissions.
Mike Bixenman, Kyzen Corporation and Michael Konrad, Aqueous Technologies Corporation make an argument for removing flux residue under the quad flat pack no lead (QFN) post-rework, and present cleaning process options for meeting this cleaning challenge. The need for cleanliness under individual components increases as the spacing between connector leads decreases and power increases. The low stand-off height of QFNs traps flux between the ground pad and component leads. Flux trapped under the QFN is a reliability concern. The purpose of this research is to develop process knowledge for cleaning all flux residues from under the QFN device. The authors, representing cleaning material and equipment organizations, investigated process variables such as solder paste, cleaning agents, cleaning equipment, and wash process factors.
Showcasing the latest expansion of its global stencil network, DEK and new franchisee AGI Corporation opened the doors of their manufacturing operation to local customers in the Americas. Attended by both leading EMS and OEM electronics firms and Huntsville Mayor Tommy Battle, the DEK-AGI Open House was designed to highlight the company’s stencil production expertise.
Personal computer maker Lenovo Group said Friday it is joining the race to develop products that link phones and PCs by buying back a mobile phone business that it sold last year, reports the Associated Press (AP).
Michael J. Palma, senior research analyst in the semiconductors team at IDC, published the “EMS Industry Forecast 2009–2013: Hints of Recovery” report. This IDC update provides IDC's electronic manufacturing services (EMS) industry forecast from 2008 through 2013. It includes forecasts for the EMS and original design manufacturing (ODM) sectors, product segments, and regions. This update also reviews the state of the industry and core forecast scenario and assumptions.
Though the recession has virtually decimated the computer industry, Henderson Ventures analysts predict double-digit computer industry gains by 2011. This year, the traditional Q’04 holiday bump in sales is expected to reappear, after being waylaid last year by the onset of the financial crisis.
PCB design, engineering, and manufacturing provider Electronic Interconnect (EI) will engage in a cooperative agreement with Flex Interconnect Technologies (FIT — Milpitas, CA) to jointly provide a wider range of PCB products. EI specializes primarily in rigid PCB types, while FIT provides design and manufacturing to final assembly of flexible circuits, rigid-flex, and HDI flex.
Sustainability Commitment A Key Driver for Product Development
There's a lot of talk about sustainability these days. While some firms have truly embraced a plan to drive toward more environmentally responsible products and ...
Using Hansen Space to Optimize Solvent Based Cleaning Processes
What is an optimized cleaning process? Is it based solely upon removing the residue, or is it more? Of course it is more. We do not want to remove the labels or ...
Sponsored By: Austin American Technology Corp.
Next Best Thing to a Close Shave: Mitigating the Risks of Tin Whiskers
by Brian Toleno, Ph.D., Henkel CorporationIf you've been in electronics for any length of time, the phenomenon of tin whiskers is something you've likely heard discussed ...
SMT Magazine's editorial team discusses industry events, trends and important news for electronics manufacturers, IDMs, OEMs and related companies.