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1.3.4.1. Sample PCB Layout for 1.00-mm Flip-Chip BGA and 0.80-mm UBGA (BT Substrate)
1.3.4.2. Sample PCB Routing Scheme on 6 Layers for 0.5-mm 484-pin MBGA
1.3.4.3. Sample PCB Routing Scheme on 3 Layers for 0.5-mm 383-pin MBGA
1.3.4.4. Sample PCB Routing Scheme on 2 Layers for 0.5-mm 301-pin MBGA
1.3.4.5. Sample PCB Routing Scheme on 2 Layers for 0.5-mm 153-pin MBGA
1.3.4.6. Sample PCB Routing Scheme on 4 Layers for 0.5-mm 144-pin MBGA
1.3.4.7. Sample PCB Routing Scheme on 2 Layers for 0.5-mm 256-pin and 100-pin MBGAs
1.3.4.8. Sample PCB Routing Scheme on 4 Layers for 0.4-mm 81-pin VBGA (also known as WLCSP)
1.3.4.9. Sample PCB Routing Scheme on 2 Layers for 0.5-mm 68-pin MBGA
1.3.4.10. Sample PCB Routing Scheme on 2 Layers for 0.4-mm 36-pin VBGA (also known as WLCSP)
1.3.4.11. Sample PCB Routing Scheme on 3 Layers for 0.8-mm 324-pin UBGA
1.3.4.12. Sample PCB Routing Scheme on 3 Layers for 0.8-mm 169-pin UBGA
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1.2.2. Multi-Layer PCBs
The increased I/O count associated with BGA packages has made multi-layer PCBs the industry-standard method for performing escape routing. Signals can be routed to other elements on the PCB through various numbers of PCB layers.