[To Parent Directory]2013/12/17 6:56 351094 1.多开窗.jpg2013/12/17 6:56 535658 2.L3层差分阻抗调错,单端差分线调反.jpg2013/12/17 6:56 506493 3.走图镀,bga应该补偿0.5mil.jpg2013/12/17 6:56 293474 4.阻抗条里外层差分阻抗线要多补0.3mil.jpg2013/12/17 6:56 360372 5.coverage不足.jpg