How many different designs in your files separated by v-cuts, mouse bites or milling slots. For example:

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The delivery format is the method in which you ask JLCPCB to produce and deliver your PCB design.

· Single PCB - Your design as is.

· Panel by Customer - You construct the PCB panel yourself and provide us the panelized data for PCB production.

· Panel by JLCPCB - We construct your panel with v-cut according to your need. (We only provide panelizing service for PCBs with regular shapes like rectangle and circle. For PCBs of irregular shapes, you need to panelize by yourself.)

The PCB solder mask color. Solder mask is used to protect the copper traces of the PCB and ensures that the solder will only flow on the exposed pads.

The green standard has the best performance and fastest turnaround time. For most colors, the silkscreen is printed white. Only for white solder mask, the silkscreen is printed black.

For most colors, the silkscreen is printed white. Only for white solder mask, the silkscreen is printed black. Please note, white printed silkscreen could be easily blend in with the gray surface. No silkscreen is recommended on the bare Aluminum surface. Learn More

HASL is an affordable finishing option that utilizes tin/lead to creating a thin protective covering on a PCB.

ENIG has become the most popular surface finish in the industry as it offers flat surface, lead free and RoHS compliant, longer shelf life, and tighter tolerances can be held for plated holes. Learn More

Copper weight on the outer layers(top and bottom).

The copper weight for inner layers is 0.5 oz by default. Learn More

Gold fingers are the gold-plated columns along the connecting edges of PCBs. Only when ENIG surface finish is chosen, the fingers will be gold-plated. If you choose HASL surface finish, we will use HASL as edge connect plating. Learn More

Castellations are plated through holes located in the edges of a printed circuit board and cut through to form a series of half holes.

The minimum diameter of castellated holes is 0.5mm. Learn More