Providing test solutions for large-scale mass production is getting more and more attention from test manufacturers. At present, China's wireless equipment market is in a period of rapid growth. With the centralized application of new wireless technologies such as LTE and NFC in smart devices, Chinese wireless device suppliers are facing pressure from the latest wireless technology testing requirements and mass production testing requirements.
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“We are concerned that domestic suppliers have invested heavily in the production and research and development of new smart devices in 2014. In order to meet the production test requirements, the purchase volume of test equipment has also increased sharply.†Mr. Curtis Schmidek, Vice President of Global Marketing, LitePoint In an exclusive interview with our reporter, "The most willingness to purchase is the test equipment with LTE and NFC functions, and the test solution for the latest 802.11ac Wi-Fi technology. Currently, LitePoint's test products have been tested. Covers more than 30 wireless standards and continues to expand the range and efficiency of test products."
Test optimization for popular wireless technologies
With regard to China's current popular wireless technologies, LitePoint has highly optimized its production test solutions based on LTE (LTE-FDD, TD-LTE and LTE-Advanced) and NFC. Curtis Schmidek said that as early as 2010, LitePoint introduced the IQxstream cellular mobile communication technology test system, which can parallelly calibrate and verify up to eight devices under test, thus improving test throughput over signaling-based testers. More than 10 times. Currently, LitePoint's newly optimized IQxstream multi-DUT ("subject") test solution supports GSM, EDGE, CDMA2000, WCMDA, LTE-FDD, TD-LTE, GPS, GLONASS, Wi-Fi and Bluetooth. Many standards.
Near Field Communication (NFC) is a technology that will bring billions of payments, and must be calibrated and tested to ensure that payment transactions are carried out normally. However, the tests commonly used in the past can only be used for NFC circuits in the device under test.
The function performs a rough go/no-go test. Manufacturers are caught in a dangerous situation where their product performance has a large margin, or just barely passed the test, but may not be used in the actual working environment. In addition, in the production process, if the performance of the first 1,000 devices is passed but there is a trend of decreasing, indicating that there is some variation in the production process, what should I do? LitePoint uses the IQnfc tester for parametric testing. It can make a big difference. The above problems can be discovered before they appear and affect a large number of product quality. In addition, IQnfc can collect these parameterized data in just a few seconds, almost the same as the go/no-go test time.
Product launch time and test cost are the most concerned issues for Chinese mass production companies. In this regard, Mr. Curtis Schmidek introduced that providing a total solution to accelerate time-to-market for customers and providing better overall test economy (ie lower total cost of testing) is a consistent pursuit of LitePoint's product strategy.
Product time-to-market considerations
In the design of new products, “design quality†should always be the goal of equipment manufacturing, but the development cycle of smart equipment products is constantly shortening, and products generally need to be transferred from design to production department in a short time, so that they can be put into production quickly. If you want to quickly increase production and ensure quality in such a short period of time, it is especially important to implement a comprehensive calibration and testing process. According to Curtis Schmidek, during the R&D-to-production phase, companies face issues such as the time and resources required to develop test programs for new wireless chips and the accuracy of the test results. LitePoint has been working closely with semiconductor partners around the world and can support more than 200 wireless chip solutions. Its wireless connectivity and cellular mobile communications test system is supported by self-developed, highly optimized test software (including IQfact+ and IQvector), which allows test engineers to modify the test flow and test limits to establish qualified production tests. Conditions without starting from scratch. LitePoint's wireless connectivity test solution is the industry's benchmarking platform, and the world's leading semiconductor suppliers are using these platforms to perform quality verification of their own solutions, thus ensuring test accuracy and helping manufacturers to invest quickly and smoothly. Production.
Overall test economic considerations
From the perspective of cost of equipment testing in a production environment, test throughput (UPH) higher test solutions are always the first choice for LitePoint. Mr. Curtis Schmidek said that during the life of the tester (usually 2 to 5 years), operating costs are typically five times higher than capital expenditures, and this multiplier is even larger as China's labor costs increase. Test efficiency is more important to the company than the cost of the tester.
At the same time, Mr. Curtis Schmidek exemplified the efficiency of Wi-Fi testing (especially for the 802.11ac standard for high-speed communication connections). LitePoint developed the IQxel-M8 wireless connectivity tester with its multi-DUT technology for up to 8 devices. Parallel testing to maximize test throughput. IQxel-M also uses LitePoint's patented Packet Engine technology, an efficient built-in back-end data processing and non-synchronous testing method, especially for production processes in factory environments, for smart devices and embedding The testing of the modules provides the best production throughput.
At the same time, in order to ensure a high usage rate in the production environment, the durability of the test product is also an important evaluation standard. Compared to the laboratory environment, the production environment is a more demanding working environment for the tester. The display, operating buttons and knobs are easily broken, and some damages are often not detected in time, rendering the instrument unusable for hours or even days. LitePoint has been aware of this limitation since its inception, and its production solutions have a rugged construction, a simple and durable control and connection interface, and intelligent cooling. All of this is to achieve the highest equipment usage and lowest maintenance costs in a factory environment.
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