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Blog - JLCPCB

Unlocking the Secrets of Nano-Coated Stencil Manufacturing

Nano-Coated Stencil Manufacturing Process The manufacturing of nano-coated stencils involves a series of precision engineering steps including design and drafting, laser cutting, polishing, nano-coating deposition, and quality inspection. Below is a detailed description of each process stage: 1. Design and Drafting (1) Data Acquisition: Accurate data is obtained from customer-supplied design files (e.g., Gerber files, PCB layouts) or physical product samples. This includes stencil dimensions, pad layo......

Apr 21, 2025

The ROI of Nano-Coated Stencils in PCB Assembly Lines
Nano coatings offer several benefits. They are hydrophobic and repel water-based chemistry or flux, and some are also oleophobic and repel oil-based chemistry or flux. When applied to the bottom or board side of the stencil, these coatings will prevent solder paste squeeze-out during the print process between the stencil and PCB from sticking to the bottom of the stencil when the stencil separates from the board. As a result, the next print will be as good as the initial print, and bridging is reduced......
Nov 29, 2025
Reducing Solder Bridging and Cleaning Costs with Nano-Coated Stencils
The ongoing trend for miniaturization of electronic devices ensures that the surface mount assembly process will continue to provide new challenges. Components and stencil apertures are getting smaller and tighter in pitch. The demands on the solder paste printing process require improvements in technology. Nano-coatings for stencils have been available for many years. The coatings are supplied in two common forms. The most common form is a multiple step liquid coating which is applied by wiping onto ......
Aug 29, 2025
SAM vs Ceramic: Choosing the Right Nano-Coating for Your PCB Stencil
As SMT designs evolve, tighter pitches and smaller components are introduced in electronics. Traditional stencil services can be used for bigger SMD pads but as the innovation goes on nano coated stencils comes to the market. Nano coatings are hydrophobic and oleophobic and repel water, oil and solder paste flux. Some benefits of using these coatings are improved transfer efficiency, reduced need (or frequency) of underside cleaning, and reduced bridging after print. There are two types of Nano-coatin......
Aug 29, 2025
Nano-Coatings in PCB Manufacturing: How They Outperform Traditional Stencils
Nano coating is a thin hydrophobic (water repellent) and oleophobic (oil repellent) treatment used on the undersides and edges of solder paste stencils. With this the surface becomes non-stick which reduces the number of cleaning cycles required for the solder paste printing process. Upon application, the less than 5 nanometer coating bonds with the stencil foil at the microscopic level, which does not change the size and shape of the stencil. Nano coating is an industry proven process which shows imm......
Aug 15, 2025
Unlocking the Secrets of Nano-Coated Stencil Manufacturing
Nano-Coated Stencil Manufacturing Process The manufacturing of nano-coated stencils involves a series of precision engineering steps including design and drafting, laser cutting, polishing, nano-coating deposition, and quality inspection. Below is a detailed description of each process stage: 1. Design and Drafting (1) Data Acquisition: Accurate data is obtained from customer-supplied design files (e.g., Gerber files, PCB layouts) or physical product samples. This includes stencil dimensions, pad layo......
Apr 21, 2025
The Importance of High Precision in PCB Stencil Manufacturing
PCB stencils play a crucial role in the manufacturing process, especially when dealing with small pitch components. High precision in stencil manufacturing ensures accurate solder paste deposition, which is essential for reliable and high-performance electronic assemblies. In this article, we will highlight the importance of high precision in stencil manufacturing using an example from JLCPCB. We will also demonstrate the exact manufactured dimensions compared to the desired dimensions using measureme......
July 11, 2024