Industry News | 2003-04-16 10:58:03.0
Award presented for Palomar's Gold Connection
New Equipment | Assembly Services
25.0 um (>1mil) 6Max. Board Size: (580mm×1200mm) 7Min. Drilled Hole Size:4mil(0.1mm) 8Min. Line Width:3mil (0.075mm) 9Min. Line Spacing:3mil (0.075mm) 10Surface finishing:HASL / HASL lead free, HAL, Chemical tin, Chemical Gold, Immersion Silver/
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 | Assembly Services
The board is designed by customer and it's for Set-Top Box PCBA board. We did one-Stop EMS Service for this project (PCB manufacture, components sourcing, SMT and THT assembly): Product name: 4 Layer PCBA board Material: FR-4 TG180, Shengyi Thicknss
New Equipment | Assembly Services
The board is designed by customer and it's for Network interface controller. We did one-Stop EMS Service for this project (PCB manufacture, components sourcing, SMT and THT assembly): Product name: 8 Layer HDI PCBA board Material: FR-4 TG180, Shengy
New Equipment | Assembly Services
The board is designed by customer and it's for TV Box PCBA board. We did One-Stop EMS Service for this project (PCB manufacture, components sourcing, SMT and THT assembly). Product name: 4 Layer PCBA board Material: FR-4 TG170 Thicknss: 1.6mm Surfac
New Equipment | Assembly Services
No. Items technological Capability 1 Layer 1-20 layer 2 Copper thickness 0.5-4.0oz 3 Board thickness 0.2mm-6.0m
Industry News | 2011-06-24 18:52:10.0
Vicor Corporation, recently evaluated DEK’s award-winning Nano-ProTek stencil nano coating and has reported excellent results. On a densely populated board with multiple 0402, 0201, BGA and micro-BGA components, Nano-ProTek helped improve CpK and yield.
Industry News | 2016-03-07 20:31:29.0
Viscom today announced plans to introduce a new model of its successful S3088 ultra 3D AOI system family at the IPC APEX EXPO in Las Vegas. The S3088 ultra gold reaches image data rates of up to 3.6 gigapixels per second. The core of this system is the innovative high performance camera module XMplus with its outstanding, high throughput camera technology.
Industry News | 2021-08-25 16:20:31.0
Two additional Hentec/RPS Odyssey 1325 RHSD machines will expand high reliability BGA alloy exchange and component re-finishing capabilities.