《器件封装用户向导》赛灵思产品封装资料
Introduction to Xilinx Packaging Electronic packages are interconnectable housings for semiconductor devices. The major functions of the electronic pa...
Introduction to Xilinx Packaging Electronic packages are interconnectable housings for semiconductor devices. The major functions of the electronic pa...
Applying power to a standard logic chip, SRAM, or EPROM, usually results in output pinstracking the applied voltage as it rises. Programmable logic ...
Cadence 应用注意事项 1、 PCB 工艺规则 &...
我采用XC4VSX35或XC4VLX25 FPGA来连接DDR2 SODIMM和元件。SODIMM内存条选用MT16HTS51264HY-667(4GB),分立器件选用8片MT47H512M8。设计目标:当客户使用内存条时,8片分立器件不焊接;当使用直接贴片分立内存颗粒时,SODIMM内存条不安装。...
第一步,拿到一块PCB,首先在纸上记录好所有元气件的型号,参数,以及位置,尤其是二极管,三机管的方向,IC缺口的方向。最好用数码相机拍两张元气件位置的照片。第二步,拆掉所有器件,并且将PAD孔里的锡去掉。用酒精将PCB清洗干净,然后放入扫描仪内,启动POHTOSHOP,用彩色方式将丝印面扫入,并打印...