Technical Library | 2016-07-21 18:16:06.0
Achieving optimum high-frequency printed-circuit-board (PCB) performance is not simply a matter of specifying the best possible PCB material, but can be significantly impacted by PCB fabrication practices. In addition to appropriate circuit materials and circuit design configurations to meet target performance goals, a number of PCB material-related issues can affect final performance, including the use of soldermask, the PCB copper plating thickness, the conductor trapezoidal effect, and plating finish; understanding the effects of these material issues can help when fabricating high-frequency circuits for the best possible electrical performance.
Technical Library | 2019-05-29 01:47:22.0
1.Vias near SMD pads: Solder can flow into the via after melted. As a result cold joint will appear in the end. Check the picture below. 2.Vias on SMD pads: Solder can flow into the via more easier after melted. Check the picture below. 3.Via opening without soldermask covered. When workers solder TH parts by hand, soldering iron can touch vias sometime, then tiny amounts molten solder will stay on vias. This can lead to electrical short easily. We recommend you make all vias tenting (covered by solder mask) if it is possible.
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CAMMaster CAMMaster is the premier product for the most demanding jobs, with scripting features to automate your routine jobs and improve accuracy and yields to get the work done faster. CAMMaster features: Advanced DFM checks Netlist ex
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MLT provides laser services for selective solder mask removal as a precise and controlled rework option. No more scrapping or tedius hours to rework selective areas to recover simply unwanted solder mask. This same process works from many other mat
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Base Material: FR4 Layer count: 4 layer Board thickness: 1.6mm Copper Thickness:1 oz Surface finish: nickel gold plating Soldermask Colors: Green Size:159.25*182/1up
Base Material: FR4 Layer count: four layer Board thickness: 1.6mm Copper Thickness:1 oz Surface finish: Immersion Gold Soldermask Colors: blue
New Equipment | Fabrication Services
Base Material: FR4 Layer count: two layer Board thickness: 1.6mm Copper Thickness:1 oz Surface finish:Gold finger Soldermask Colors: Red Size:119.5*76.7/1up
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