Plasma cleaning before coating

Plasma cleaning is an advanced surface preparation process used before applying Konform beläggning i Montering av kretskort och SMT-montering. It uses ionized gas (plasma) to remove microscopic contaminants and activate the PCB surface, ensuring better coating adhesion and reliability.

How plasma cleaning works

Plasma is created by applying energy to a gas (such as oxygen, air, or argon), turning it into a highly reactive state. When exposed to the PCB surface:

• Organic contaminants (oils, flux residues) are broken down
• Particles and residues are removed at a microscopic level
• The surface energy of the PCB is increased

This process prepares the board for strong bonding with Konform beläggning.

Why plasma cleaning is important

Before coating in Montering av kretskort, even tiny contaminants can lead to coating defects.

Key benefits:

• Improves adhesion of Konform beläggning
• Reduces risk of delamination and peeling
• Eliminates invisible residues missed by traditional cleaning
• Enhances long-term reliability in harsh environments

It is especially critical for high-reliability SMT-montering applikationer.

Types of plasma used

Oxygen plasma

• Removes organic contamination effectively
• Most commonly used before coating

Argon plasma

• Provides physical cleaning (micro-etching effect)
• Helps improve surface roughness

Air plasma

• Cost-effective alternative
• Suitable for general cleaning applications

When plasma cleaning is used

Plasma cleaning is commonly applied in:

• High-reliability electronics (automotive, aerospace, medical)
• Dense or complex PCB designs
• Products exposed to moisture, chemicals, or temperature stress
• Situations where standard cleaning is not sufficient

Plasma vs traditional cleaning

Traditional cleaning (water or solvent-based):

• Removes visible contaminants
• Limited effectiveness on microscopic residues

Plasma cleaning:

• Works at molecular level
• No liquid chemicals required
• Provides superior surface activation

Begränsningar

• Higher equipment cost
• Requires controlled process environment
• Not always necessary for low-end applications

Slutlig slutsats

Plasma cleaning is a highly effective pre-treatment process in Montering av kretskort och SMT-montering, ensuring optimal surface conditions before applying Konform beläggning. By removing microscopic contaminants and improving adhesion, it significantly enhances coating performance and long-term reliability.

Få en offert på Conformal Coating

Från prototyp till massproduktion - vi erbjuder tjänster för konform beläggning. Få din offert nu.
Skicka oss dina krav och få ett snabbt svar från vårt ingenjörsteam.

✔ Svar 24 timmar om dygnet ✔ Teknisk support ✔ Små- och massproduktion

Aktivera JavaScript i din webbläsare för att fylla i detta formulär.

Material Layout Name

Namn *

E-post *

WhatsAPP

Rekommenderat material

• Akryl (AR)
• Silikon (SR)
• Polyuretan (UR)
• UV-härdbar - UV
• Jag är inte säker / Behöver råd

Filuppladdning

Dra och släpp filer,, Välj filer att ladda upp Du kan ladda upp upp till 8-filer.

Komprimera alla Gerber-filer, Drill-filer och BOM till en enda ZIP- eller RAR-fil för snabbare bearbetning.

Meddelande

"Please list components or areas that must NOT be coated (e.g., connectors, test points)." If you have specific coating material requirements (e.g., HumiSeal), Please indicate this in the comment box.

Skicka in

Shenzhen Tengxinjie Electronics Co, Ltd.