New Equipment | Selective Soldering
Flason SMT Selective Wave Soldering Machine max solder temperature 350℃ solder pot capacity 15 KG dimension L1280mm X W1400mm X H1650mm Net weight 380KG Product description: Off line Selective Wave Soldering Machine INQUIRY
Industry News | 2020-08-22 04:19:37.0
The Assembly Division of MacDermid Alpha Electronics Solutions will be presenting two technical papers; "Methods of Reducing or Eliminating Voids in BGA and BTC Devices" and "Can Low Cost Silver Free Alloys Be Used in Type II and III Assemblies?" at the SMTA China South Technical Conference taking place from August 26-27 in Shenzhen, China.
Industry News | 2018-10-18 08:46:25.0
"Lead-Free" Semiconductor Industry
New Equipment | Soldering - Other
http://www.flason-smt.com/product/lead-free-soldering-paste-Sn96-5Ag3Cu0-5.html lead-free soldering paste Sn96.5Ag3Cu0.5 lead-free soldering paste Sn96.5Ag3Cu0.5 tin solder paste flux solder paste Product description: lead-free soldering past
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.
New Equipment | Solder Materials
Indium Corporation manufactures high quality solder powders and pastes. Powders are available in hundreds of alloys and a full range of sizes. Solder pastes can be made from these powders using a wide variety of flux vehicles to get the best fit for
New Equipment | Soldering - Other
http://www.flason-smt.com/product/solder-paste-Sn63-Pb37.html solder paste Sn63/Pb37 solder paste Sn63/Pb37 Tin solder paste Sn63/Pb37 Tin solder paste Sn63/Pb37 Product description: solder paste Sn63/Pb37-Good Price! Good Quality! Good Servi
.jpg)
Features: ▲ Patented Heating Wire Heating Technology, Independent Micro-Circulation Wind Design, Upper And Lower Heating Mode, Good Thermal Compensation, High Thermal Efficiency, Power Saving, Fast Heating Speed, It Is Especially Suitable For Welding
Industry News | 2023-01-09 18:39:37.0
With its rule-breaking wave solder alloy, SN100C, Nihon Superior Co., Ltd. earned global recognition as an innovator in lead-free solder formulation. The rule that SN100C broke was that you can't make a Pb-free solder without a silver content that doubles the cost of the raw materials. Now Nihon Superior has broken that rule again with SN100CV, a reflow soldering alloy that can outperform SAC305 in reliability while being reflowable with the same thermal profile as SAC305.
Technical Library | 2023-09-26 19:14:44.0
The transition from tin-lead to lead free soldering in the electronics manufacturing industry has been in progress for the past 10 years. In the interim period before lead free assemblies are uniformly accepted, mixed formulation solder joints are becoming commonplace in electronic assemblies. For example, area array components (BGA/CSP) are frequently available only with lead free Sn-Ag-Cu (SAC) solder balls. Such parts are often assembled to printed circuit boards using traditional 63Sn-37Pb solder paste. The resulting solder joints contain unusual quaternary alloys of Sn, Ag, Cu, and Pb. In addition, the alloy composition can vary across the solder joint based on the paste to ball solder volumes and the reflow profile utilized. The mechanical and physical properties of such Sn-Ag-Cu-Pb alloys have not been explored extensively in the literature. In addition, the reliability of mixed formulation solder joints is poorly understood.
