TORONTO - Adeptron Technologies has failed to meet the continued listing criteria of the Toronto Stock Exchange and has voluntarily applied to delist its common shares, the company announced.

BANNOCKBURN, IL – North American printed circuit board shipments in April increased 3% year-over-year, says IPC. Orders fell 5.6% compared to April 2010.

CHENGDU, CHINA – Combustible dust in an air duct at a polishing workshop caused Foxconn’s explosion in China this month that killed three workers and injured 15, say published reports.

The firm since instituted a partial shutdown of the plant here, raising concerns about supply disruptions for some Apple products, including the iPad.

The explosion could cause a loss of production of 500,000 iPad 2 tablets during the second quarter, according to IHS iSuppli. A Shenzhen factory may not be able to compensate for the Chengdu disruption, the research firm says.

BUCKS, UK – A July 5 SMART Group webinar will cover all aspects of printed circuit boards, from specifications to materials to quality assurance.

Topics include writing a suitable PCB specification; relevant international standards; laminate types; solder finishes; solder mask; flex and flexi-rigid requirements; quality control; inspection; common defects and how to find and avoid them, and the importance of assessing supplier capability.

The webinar will be presented by users involved in commercial and high reliability electronics assemblies. They have experience controlling and assessing quality, purchasing, and dealing with design and production issues associated with PCBs.

The SMART Group is a UK-based trade association that promotes the use of SMT assembly.

To register, visit http://www.smartgroup.org/images/stories/webinars/PCBSpecification2011.pdf.