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July, 2019
Serialized Programming Solutions for IoT Secure Elements
By David Brehmer, Technical Writer, Exatron, Inc. B
illions of networked devices are currently reshaping the health care, banking, security and surveillance, transportation, manufac-
turing, retail, home tech, and consumer electronics industries, comprising what is known as the Internet of Things (IoT). In a world increasingly operated in the cloud, security is essential, which makes the unique internal and external serialization of secure elements necessary to operate these smart devices. With traditional, large-scale testing and
programming methods, it can be difficult and costly to guarantee unique serialization. Exatron, in partnership with NBS technologies has found a way around the challenges of secure element serialization with its Smart Queue technology and associated 901 TRX automated test/program handler, which is designed to deliver 100 percent perfect serialized internal and external order with no missing or duplicat- ed numbers at speeds of greater than 2,000 units per hour.
Exponential IoT Growth The number of IoT devices grows exponen-
tially every year, with some predicting as many as 50 billion in operation by 2020. Many home securi- ty systems, thermostats, and even light bulbs, can be controlled by a smartphone. Blood pressure can be read by a smartwatch and tracked online. Shipping vessels are tracked by handheld devices. EMV chip readers for debit cards are ubiquitous in stores and restaurants around the world. The con- tinued success of, and confidence in, these wide- spread systems relies on data security. Smart devices must be paired uniquely to consumer
Illustration of Exatron’s Smart Queue system. However, traditional test/program methods can
make unique serialization a time-consuming and costly challenge. Serial numbers often need to be both programmed internally and human-readable externally. Often those internal and external serial numbers are not the same. This can make it difficult to keep track of serial numbers at output. Also, if even one single device out of a lot of thousands is found to be programmed incorrectly after the fact, the entire batch may be wasted, or the entire batch must be retested. In order to guarantee perfect seri-
The material matters in material handling
DC-1 Series DC-2 Series
phones and tablets. EMV card readers must be paired uniquely with bank software and individual card readers. Unique serialization of secure ele- ments used in these devices increases both data protection and fraud detection.
alized internal and external order, serial numbers must be tracked at every step of production through input, programming, laser marking, and output, so operators have a confirmed database of which serial number is where.
Smart Queue Program Handler Exatron, in partnership with NBS Tech -
nologies, has created the 901 Smart Queue pro- gram handler system (901 TRX) to solve these unique serialization challenges. The 901 TRX offers trackable, unique internal and external seri- alization, automatic verification of programmed secure elements, automatic remake of failed ele- ments, and also guarantees 100 percent perfect serial order at output with no missing numbers, no duplicates and no gaps in output tape. The key is the company’s Smart Queue soft-
ware, which not only ensures serial order, but also tracks and logs each serial number location at every step. During production, secure elements are placed at a verification site immediately after programming and laser marking. If one or more elements fail verification, those elements are sorted to the specified reject
bin, while passed elements are placed at a buffer tray, leaving empty spaces in serial order. A new element or elements are picked, programmed with the missing serial number or numbers, laser marked, verified and ultimately placed in the empty buffer tray spaces. All four elements are then picked and output
to tape in perfect serialized order. The 901 TRX also offers a top-side OCR inspection, which ensures the correct serial number has been legibly
Continued on next page DC-3 Series
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