The buried hole is not necessarily HDI. Large size HDI PCB first-order and second-order and third-order how to distinguish the first-order is relatively simple, the process and process are easy to control. Second order began to trouble, one is the problem of alignment, a hole and copper plating problem.
Large size HDI PCB Quick Details
Place of Origin: Guangdong, China
Brand Name: Large size HDI PCB Model Number: Rigid-PCB
Base Material: ShengYi
Copper Thickness: 1oz Board Thickness: 1.6mm
Min. Hole Size: 0.1mm Min. Line Width: 5.5mil Min. Line Spacing: 5.5mil
Surface Finishing: gold
Number of layers: 6L PCB Standard: IPC-A-600
Solder Mask: NO
Legend: NO
Product quotation: Within 2 Hours
Service: 24Hours technical services Sample delivery: Within 14 days