fpga-developer
Newbie level 4
[MOVED] 6 layer stack up, 50ohm - single, 100 ohm diff, low cost prototype suggestions
Hi!
Structure of my PCB stack up:
L1--^---^--- SIG
L2----------- GND [PLANE]
L3--^---^--- SIG/PWR
L4--^---^--- SIG/PWR
L5----------- GND [PLANE]
L6--^---^--- SIG
on L1/L6 assembled BGA (DDR2,FPGA) with pitch 0.8mm, so i need route aproximately 0.1/0.1 (line/clr.) and VIA about 06/03 or 05/02
L1/L3/L4/L6 single - 50ohm, diff - 100ohm
Please suggest me standart manufacturable low/midle coast stack up structure. Of couse it is possible play with polar speed stack up, but amount of combinations i will take for structures. I need some stack from practice from real manufacture.
Thank you!
Hi!
Structure of my PCB stack up:
L1--^---^--- SIG
L2----------- GND [PLANE]
L3--^---^--- SIG/PWR
L4--^---^--- SIG/PWR
L5----------- GND [PLANE]
L6--^---^--- SIG
on L1/L6 assembled BGA (DDR2,FPGA) with pitch 0.8mm, so i need route aproximately 0.1/0.1 (line/clr.) and VIA about 06/03 or 05/02
L1/L3/L4/L6 single - 50ohm, diff - 100ohm
Please suggest me standart manufacturable low/midle coast stack up structure. Of couse it is possible play with polar speed stack up, but amount of combinations i will take for structures. I need some stack from practice from real manufacture.
Thank you!