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March 2017 • The PCB Magazine 89 5 All About Flex: Creating a Flexible Circuit Cutline The perimeter dimensions of a flexible circuit are often re- ferred to as the cutline. While rigid printed circuits are often rectangular and generally a less complex outline, the require- ment for a flexible circuit to be an integrated part of the prod- uct packaging often involves unusual sizes, shapes and features in the circuit perimeter. 6 Electroplated Copper Filling of Through-holes: Influence on Hole Geometry The process consists of a two-step acid copper plat- ing cycle. The first step utilizes periodic pulse re- verse (PPR) electroplating to form a conductive copper bridge across the middle of a through-hole and is fol- lowed by direct current electroplating to fill the resultant vias formed in the bridge cycle. 7 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 developed what is not only the world's smallest speaker, but also the first based on micro-electro- mechanical systems (MEMS). 8 Time-Lapse Video: The IPC APEX EXPO 2017 Show in Under Seven Minutes! During IPC APEX EXPO 2017, I-Con- nect007 had time- lapse camera running from setup to closing. The camera was po- sitioned high in our studio, where we con- ducted our RealTimewith…IPC APEX EXPO video interviews, aimed down the main aisle. 9 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. J 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. For the latest PCB news and information, visit: PCB007.com

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