Xilinx Spartan6 BGA484 PCB Routing 10L FR4
The picture shows TOP view of the 10-layer Spartan6 board I recently routed. The printed circuit board (PCB) has the FPGA chip with 484 BGA-balls, memory, TCP-communication, etc. plus customer ASIC circuit (144-leads) on the backside. The design has one intact ground layer, and two inner ground layers with only a couple of tracks each. The PCB area specs was 4.8 x 6.2 cm (1.90x2.45 inch). Despite the tiny acrage, the most expensive PCB technologies such as buried or blind or laser vias were avoided. Minimum track widths and track separations were also kept above 0.1mm (4 mils). With this setup, the design was successfully fit into a total of 10-layers. Thus customer saved a lot of money in PCB fabrication cost. My firm, LNAFIN electronics-PCB actually delivers those to the same customer. Later we will also assemble bigger series. Picture and all data has been published with customer permission.
About Me
Senior engineer with key products such as different electronics and printed circuit board (PCB) solutions. Experience with difficult PCB layouts such as BGA484 Xilinx Spartan6 rouiting, high current PCB layouts etc. Hands-on experience in RF-microwave design and electromagnetic simulations. PCB sales and assembly service too.
$ 50 USD/hr
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