How to avoid pollution with a circuit board with a conductive ring? Melong Long
With the continuous improvement of technology, the current board already has a conductive ring, making the circuit board more controllable, then how to avoid pollution with the circuit board with the conductive ring? Learn together.
Big coffee teaches you how to drive a circuit board to avoid pollution
The bridge circuit formed by the conductive salt may occur in the case where the circuit board is plated, the circuit board etching, or the flux remains on the circuit board, which is a well conductor in a wet environment.
They generate ion migration between the two conductors while forming a short circuit on the surface of the insulator. Corrosive by-products such as: chlorine and sulfur salts are formed in the production environment, which is a chemical model that may result in short circuits.
A fault paradigm of this type, as shown later. The growth of a tree is due to the electrical transfer metal from one conductor to another, and therefore also described as an electrical metal diffusion migration, a tree growth fault exemplary.
This phenomenon will be significantly accelerated as long as the hydrolyzed ionic contaminants are present (eg, halogen released from flux residual or polymer).
Explosive palette or vacuoal, which also increases the accumulation of moisture or contaminants, which may increase the growth of the tree structure, and the conductive anode filament growth is a special tree structure, which will be some discussion. The time that the fault occurred inversely compared to the spacing square and voltage, the fault mechanism in this area has been reviewed in acceleration testing.
The growth of the tree often is formed by the cathode to the anode, and the formation of metal ions is produced by the anode dissolution, which is then transmitted along the conductive path and also plated in the cathode. This precipitated exterior is like a tree branch because it has a spread branch.
The above is the way to avoid pollution, and the small partners may feel that the pollution of the board is very small, but Merfilong’s small series reminds everyone, regardless of the size of the pollution probability, we must prevent us Oh.
Article Tags: Circuit Board
Some slip ring reference model:
Food grade single rotary joint – MSCS series rotary joint | Rotary joint-360 ° rotary guide ventilation device fiber | high frequency | HD slide ring _ rotary joint series large flow rotary joint -MVH series high frequency slip ring | high frequency rotation Connector | High-frequency rotary joint | coaxial rotary joint | waveguide rotary connector-MHF series HD slip ring | SDI slip ring | 1080P conductive slip ring | HD rotary joint-MSDI series wind electric slip ring – specifically for megawatts pitch system Provides rotary conductive slip ring flat slip ring | disc conductive slip ring | planar conductive ring-MP series PCB slip ring | ultra-thin conductive slip ring | circuit board slip ring separation slip ring | Combined split slide ring-MSP series