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34 The PCB Design Magazine • March 2017 Electroplated Copper Filling of Through- holes: Influence on Hole Geometry The process consists of a two-step acid copper plating cycle. The first step utilizes periodic pulse reverse (PPR) electroplating to form a conductive copper bridge across the middle of a through-hole and is followed by direct current electroplating to fill the resultant vias formed in the bridge cycle. AT&S Provides PCB Technology and System Integration Expertise to World's Smallest Speaker Graz-based start-up USound, in partnership with several Fraunhofer Institutes (IDMT, ISIT, IIS and IZM) and utilizing PCB technology together with system integration expertise from AT&S, has de- veloped what is not only the world's smallest speaker, but also the first based on micro-electro- mechanical systems (MEMS). Time-Lapse Video: The IPC APEX EXPO 2017 Show in Under Seven Minutes! During IPC APEX EXPO 2017, I-Connect007 had time-lapse camera running from setup to clos- ing. The camera was positioned high in our stu- dio, where we conducted our RealTimewith…IPC APEX EXPO video interviews, aimed down the main aisle. TTM Technologies Posts Sales of $706.5M in Q4 Fiscal 2016 Net sales for the fourth quarter of 2016 were $706.5 million, compared to $668.9 million in the fourth quarter of 2015 and $641.7 million in the third quarter of 2016. EPTE Newsletter: 47th INTERNEPCON JAPAN The 47th INTERNEPCON Japan electronics trade show was held on January 18 at Tokyo Big Sight. I attended the three-day NEPCON show in hopes of discovering the next electronics breakthrough, and examine the business trends within a shrink- ing electronics industry. Help Wanted! Our 2017 Industry Hiring Survey This month we conducted an industry survey on plans for hiring during the year. We started by sim- ply asking, "Do you plan to hire additional people this year?" More than half of the respondents an- swered yes, while about a third said no—which we take as an optimistic sign that our industry plans to expand in 2017. Flex Talk: Final Surface Finish— How Do You Choose? There are so many final surface finish options to choose from today. How do you decide which is best? HASL—both tin-lead and lead-free—immer- sion tin, immersion silver, ENIG, OSP, and ENIPIG are the primary finishes used in PCB fabrication. Weiner's World—January 2017 This month's column is a bit shorter than usual as we prepare for next month's IPC APEX EXPO and its Executive Forum for PCB fabricators and their supply chain. This month also marks the 65th an- niversary of Epec LLC in New Bedford, Massachu- setts. The company, founded in 1952, is the oldest printed circuit fabricator in North America. Cirtech Names John Stine as Vice President of Operations John will oversee the day-to-day operations to sup- port the growth and profitability of Cirtech. John will focus on strategic planning and goal setting, as well as provide leadership to enhance our overall performance and customer service experience. All About Flex: Creating a Flexible Circuit Cutline The perimeter dimensions of a flexible circuit are often referred to as the cutline. While rigid printed circuits are often rectangular and generally a less complex outline, the requirement for a flexible cir- cuit to be an integrated part of the product pack- aging often involves unusual sizes, shapes and fea- tures in the circuit perimeter. PCB007 Highlights

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