New Equipment | Assembly Services
Turnkey PCB assembly forms a core part of our manufacturing capability. We support all levels of production from low volume prototypes to the ongoing, sustained production requirements needed to get your products to market. Prototype Assembly We
Industry Directory | Consultant / Service Provider / Manufacturer
Specializing in electronic circuit board assembly services. Various capabilities include engineering, assembly, designing, prototyping,supply chain management, testing, documentation, rework, repair and soldering. On-time delivery
Events Calendar | Wed May 10 00:00:00 EDT 2017 - Wed May 10 00:00:00 EDT 2017 | Itasca, Illinois USA
Kester to Host Technical Rework Seminar
Industry Directory | Manufacturer
Founded in 1978, Asemco was established to provide manufacturing solutions to companies looking for a level of personalized service, quality and agility that is not available from larger EMS providers
Technical Library | 2020-10-27 02:07:31.0
For companies that choose to take the Pb-free exemption under the European Union's RoHS Directive and continue to manufacture tin-lead (Sn-Pb) electronic products, there is a growing concern about the lack of Sn-Pb ball grid array (BGA) components. Many companies are compelled to use the Pb-free Sn-Ag-Cu (SAC) BGA components in a Sn-Pb process, for which the assembly process and solder joint reliability have not yet been fully characterized. A careful experimental investigation was undertaken to evaluate the reliability of solder joints of SAC BGA components formed using Sn-Pb solder paste. This evaluation specifically looked at the impact of package size, solder ball volume, printed circuit board (PCB) surface finish, time above liquidus and peak temperature on reliability. Four different BGA package sizes (ranging from 8 to 45 mm2) were selected with ball-to-ball pitch size ranging from 0.5mm to 1.27mm. Two different PCB finishes were used: electroless nickel immersion gold (ENIG) and organic solderability preservative (OSP) on copper. Four different profiles were developed with the maximum peak temperatures of 210oC and 215oC and time above liquidus ranging from 60 to 120 seconds using Sn-Pb paste. One profile was generated for a lead-free control. A total of 60 boards were assembled. Some of the boards were subjected to an as assembled analysis while others were subjected to an accelerated thermal cycling (ATC) test in the temperature range of -40oC to 125oC for a maximum of 3500 cycles in accordance with IPC 9701A standard. Weibull plots were created and failure analysis performed. Analysis of as-assembled solder joints revealed that for a time above liquidus of 120 seconds and below, the degree of mixing between the BGA SAC ball alloy and the Sn-Pb solder paste was less than 100 percent for packages with a ball pitch of 0.8mm or greater. Depending on package size, the peak reflow temperature was observed to have a significant impact on the solder joint microstructural homogeneity. The influence of reflow process parameters on solder joint reliability was clearly manifested in the Weibull plots. This paper provides a discussion of the impact of various profiles' characteristics on the extent of mixing between SAC and Sn-Pb solder alloys and the associated thermal cyclic fatigue performance.
Industry Directory | Manufacturer
Leading supplier of highly engineered products and solutions, components and subsystems to top manufacturers, major government contractors, international government and military organizations.
Industry News | 2013-02-04 14:14:48.0
Practical Components and its sister company Practical Tools will exhibit in booth A16 at the upcoming IPC APEX Expo
Industry Directory | Manufacturer
At C I Network Technologies, we are capable of supporting our customers in development of products. Quick turn PCB assembly shortens the product development cycle and requires efficiency and precision.
Industry News | 2018-10-02 17:16:16.0
Practical Components announces that it will display its latest technology in booth 827 at the upcoming iMAPS 2018 – Pasadena 51st International Symposium on Microelectronics exhibition and conference, scheduled to take place October 9-11, 2018 at the Pasadena Convention Center in California.
Industry News | 2018-10-15 18:31:07.0
Practical Components announces that it will display its latest technology in booth 827 at the upcoming IWLPC 2018 – 15th Annual International Wafer-Level Packaging Conference. IWLPC brings together some of the semiconductor industry's most respected authorities addressing all aspects of wafer-level, 3D, TSV, and MEMS device packaging and manufacturing. The event will take place October 23 - 25, 2018 at the DoubleTree by Hilton San Jose in San Jose, CA.
Products, services, training & consulting for the assembly, rework & repair of electronic assemblies. BGA process experts. Manufacturers Rep, Distributor & Service Provider for Seamark/Zhuomao and Shuttle Star BGA Rework Stations.
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1750 Mitchell Ave.
Oroville, CA USA
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