Full Hot Air Lead-Free Reflow Oven With PC Temp Control System (A800) Introduce: 1, Heating system adopts ETA patent heating technology 2, The use of imported large current solid state relay contact output, safe, reliable, equipped with a dedicated
Main product: SMT Assembly Reflow Oven, SMT Hot Air Reflow Oven, Lead Free Reflow Oven, SMT Reflow Oven, SMT Mounting Machine, Elctronic Equipment, PCB Machine, reflow oven, SMT Assembly, SMT/SMD Equipment, PCB Printer, screen printing SMT assembly
Full Hot Air Lead-Free Reflow Oven With PC Temp Control System (A800) Introduce: 1, Heating system adopts ETA patent heating technology 2, The use of imported large current solid state relay contact output, safe, reliable, equipped with a dedicated
Industry News | 2016-05-09 21:21:15.0
SMTA China announces that it presented awards for Nine papers at the SMTA China East 2016 Conference Award Presentation Ceremony, held on Tuesday, April 26, 2016 at Shanghai World Expo Exhibition & Convention Center in conjunction with the SMTA China Annual Award Ceremony.
Industry News | 2024-02-05 14:05:05.0
The SMTA is pleased to announce the Best Papers from SMTA International 2023. The winners were selected by members of the conference technical committee. This year awards were given for the "Best of Proceedings" category but also for a new designation of "Best Practical and Applications-Based Knowledge." A plaque is given to primary authors of all winning papers for these exceptional achievements.
Industry News | 2011-01-20 13:45:14.0
IPC will introduce a cyber conference at IPC APEX EXPO in Las Vegas in 2011. The IPC APEX EXPO Cyber Conference will feature live broadcasts and post-show archives of seven of the show's thirty-five technical conference sessions on April 12–14, 2011.
Technical Library | 2007-02-01 09:27:47.0
The purpose of the testing was to compare the resistance and check for open circuit conditions of reworked BGA test samples made with and without StencilQuik™ after 500 thermal shock cycles. StencilQuick™ is a product of Best Inc. In this series of tests, the resistance of daisy chain resistance patterns running between the BGA and test board after exposure to thermal shock was measured.
Technical Library | 2007-01-31 15:17:04.0
The goal of this project is to evaluate the reliability of lead-free BGA solder joints with a variety of different pad sizes using several different BGA rework methods. These methods included BGAs reworked with both flux only and solder paste attachment techniques and with or without the use of the BEST stay in place StencilQuick™. The daisy chained test boards were placed into a thermal test chamber and cycled between -25ºC to 125ºC over a 30 minute cycle with a 30 minute dwell on each end of the cycle. Each BGA on the board was wired and the continuity assessed during the 1000 cycles the test samples were in the chamber.
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 News | 2010-07-16 16:08:56.0
Practical Components, a leading international distributor of mechanical IC samples or “dummy” components and SMD production tools and equipment, announces in-stock availability of the popular 15 mm PoP Thermal Cycling Board.
