Carbon Ink 1.6MM 2 Layer FR4 PCB Printed Circuit Board

2 Layer Rigid Printed Circuit Board , FR4 PCB Board , Carbon Ink

PCB Specifications:

Layer Count: 2 Layer Rigid PCB

Material: FR4

Board Thickness: 1.6MM

Min Hole: 0.3MM

Min Trace: 4/4Mil

BGA: 12Mil

Solder Mask: Green

Surface Treatment: ENIG+Carbon Ink

Our History:

FQA:

Question: What is a PCB Stencil?

Answer: A PCB Stencil is a sheet of stainless steel with laser-cut openings used to place solder paste on a PCB board for surface mount component placement. The PCB stencil is used to deposit solder paste on designated places on a bare PCB board so that components can be placed and perfectly aligned on the board.

Its main function is to accurately deposit the right amount of solder paste on SMT pads so that the solder joint between the pad and the component is perfect in terms of the electrical connection and mechanical strength.

Using a PCB Stencil to apply solder paste makes the PCB Assembly process faster. It also makes it easier to apply solder paste accurately.

PCB Stencils are manufactured by creating openings through lasers on a stainless steel foil based sheet at the positions where Surface Mount components need to be placed on a board. The stencil is then placed on the top of the PCB and aligned perfectly using positioning points called fiducial marks. After alignment, the solder paste is applied with a metal squeegee blade. As a result of this, the solder paste gets placed on the PCB board where the surface mount components need to be placed. So when the stencil is removed, components can be placed on the board.