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www.us-tech.com
September, 2013
Microtronic Provides Cutting-Edge Technologies And Services
By Staff of Microtronic M
icrotronic GmbH is a leading specialist of microelectronics products and services, located
near Munich, Germany. Founded in 1981 by Joop A. Eggelaar, the compa- ny serves its customers with its more than 30 years of experience, and by providing real solutions. Through in- house training, the firm offers regular training courses on numerous topics, or can arrange specific employee train- ing courses to suit specific needs. Microtronic’s customers are typi-
cally companies in need of products and services that serve microelectron- ic manufacturing, such as solderabili- ty testing, ultrasonic microscopes, cir- cuit-board repair systems, welding systems, solders, and solder pastes. The firm offers centralized pricing to its customers with the added benefit of exceptional delivery times from its centralized European warehouses. Microtronic offers an extensive
range of products, including advanced systems for electronic quality control, research, repair, and manufacturing industries. Of these, the LBT-210 au- tomatic and PC-controlled solderabili- ty tester is the most popular. Designed to check the integrity and quality of electronic solder joints, this cutting- edge system meets current industry challenges for electronic manufactur- ing. It can perform solderability test- ing using the two classical approaches: by solder bath or molten globule or sol-
der. It also provides a new method to help improve production, using solder paste and a temperature profile. With this new method, a component is placed on printed solder paste and heated through the same temperature
The model LBT-210 solderability tester automatically solders and tests today’s most challenging circuit constructions.
profile used in production. All force pa- rameters and values during the heat- ing cycle are monitored and analyzed. This is the only known method of sim- ulating and qualifying the solder pro- file of an in-line production solder fur- nace in conjunction with different sol- der pastes and components. The company often faces the
question “What is solderability testing and why is it important?” A solderabil- ity tester — or wetting balance — is a proven method for checking the me- chanical and electrical quality of sol-
der joints on components. These sys- tems test components for solderability, preferably during incoming inspec- tion. If the results are favorable, the components can be passed on to pro- duction. If the results are unaccept- able, a lot of components can be returned to a manufac- turer or distributor for re- placement. Or, a manufac- turer may order from anoth- er supplier at that point, to find a more reliable compo- nent source before produc- tion is disrupted. If compo- nents are not tested for sol- derability, there is the risk that a product will not pass functional test at the end of the production cycle because of bad solder joints. Defec- tive manufactured units re- quire expensive repairs or
they cannot be reworked. Such rejects and the costs of product failures in the field can easily exceed the investment cost of a solderability tester. This solderability testing is per-
formed repeatably with today’s PC- controlled measurement equipment. First, all component-relevant data and test parameters are placed into a screenmask. Next, a component for testing is clamped to a holder and fluxed. The holder is placed in the tester. The test is begun and the sys- tem’s software collects all pertinent
measurement data, showing the test curve together with the data of the standard norm chosen to determine solderability. Such testing should be performed with at least 10 sample components from the same lot, to provide a representative mean value. Microtronic’s LBT-210 solder-
ability tester includes software that generates useful statistical informa- tion, including mean value and stan- dard deviation. The system can be equipped with an optional camera to provide video of a test cycle that can be stored in memory with the appro- priate test measurements and relat- ed data. The LBT-210 can also test under a nitrogen atmosphere, a func- tion that can be switched on via soft- ware control. Nitrogen gas is com- monly used to enhance the reliability of surface-mount-technology (SMT) components. And for those concerned with any residues from a test envi- ronment, as Microtronic’s Managing Director Ernst Eggelaar points out: “Of course, we also included a scraper to clean the molten solder bath of any oxides before every test with the solder bath.” In addition to its own products,
Microtronic specializes in providing advanced solutions to its customers that manufacture any type of elec- tronics. Some of the brands it offers include EVS International, Virtual
Continued on next page MORE PRODUCTIVITY = MORE PROFIT
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00 incorporates
tthree distinct systems used to proces axials, adials, DIPs, SIPs QFPs an QFNs -- al on one versatile platform.
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