- What does Enig stand for?
- What is Soldermask made of?
- What is Enepig plating?
- What is OSP finish?
- What does hasl mean?
- What is the major disadvantage of printed circuit boards?
- How is OSP thickness measured?
- Is OSP conductive?
- What is immersion gold plating?
- What is OSP in PCB?
- What is PCB and its advantages?
- Is HASL lead free?
- What is HASL PCB finish?
- What is black pad?
- What is shelf life of PCB?
What does Enig stand for?
Electroless nickel immersion goldElectroless nickel immersion gold (ENIG) is a metal plating process used in the manufacture of printed circuit boards (PCBs), to avoid oxidation and improve the solderability of copper contacts and plated through-holes..
What is Soldermask made of?
Solder mask or solder stop mask or solder resist is a thin lacquer-like layer of polymer that is usually applied to the copper traces of a printed circuit board (PCB) for protection against oxidation and to prevent solder bridges from forming between closely spaced solder pads.
What is Enepig plating?
ENEPIG (Electroless Nickel Electroless Palladium Immersion Gold) is a type of surface plating applied on a Printed Circuit Board to protect it from environmental factors during storage and operation. … It is good for solder joint strength, gold wire bonding, aluminum wire bonding, and provides low contact resistance.
What is OSP finish?
OSP (Organic Solderability Preservative) OSP is a water-based, organic surface finish that is typically used for copper pads. It selectively bonds to copper and protects the copper pad before soldering. OSP is environmentally friendly, provides a coplanar surface, is lead-free, and requires low equipment maintenance.
What does hasl mean?
Hot Air Solder LevelingHot Air Solder Leveling (HASL) has always been the main staple of PCB surface finishes.
What is the major disadvantage of printed circuit boards?
Disadvantages of Printed Circuit Boards As the copper tracks are very thin they can able to carry less current hence a PCB can not be used for heavy currents because in that case the strips will be heated up and cause problems.
How is OSP thickness measured?
ST2080-OSP measures thin-film thickness by analyzing the spectral interference of the reflected lights between the reflected light from the surface of a film on the substrate and the reflected light from the surface of the substrate.
Is OSP conductive?
OSP is conductive. OSP coated PCBs also performs better when it comes to solder wetting when flux meets vias and pads.
What is immersion gold plating?
Immersion Gold Plating is a process that applies a very thin layer of gold by displacement of the surface atoms. This means the coating is not very thick, typically between three and eight micro inches. It offers some corrosion resistance and is used to extend the shelf life of parts waiting for soldering operations.
What is OSP in PCB?
Organic solderability preservative or OSP is a method for coating of printed circuit boards. It uses a water-based organic compound that selectively bonds to copper and protects the copper until soldering. The compounds typically used are from the azole family such as benzotriazoles, imidazoles, benzimidazoles.
What is PCB and its advantages?
Some advantages offered by these PCBs are: These PCBs help save a lot of space, along with reducing the overall board weight. Flexible PCBs helps in decreasing the board size, which makes it ideal for various applications where high signal trace density is needed.
Is HASL lead free?
Lead-Free HASL is similar to standard HASL, but with an obvious difference… It doesn’t use Tin-Lead solder. Instead, Tin-Copper, Tin-Nickel or Tin-Copper-Nickel Germanium may be used. This makes Lead-Free HASL an economical and RoHS compliant choice.
What is HASL PCB finish?
HASL or hot air solder leveling is a type of finish used on printed circuit boards (PCBs). The PCB is typically dipped into a bath of molten solder so that all exposed copper surfaces are covered by solder. Excess solder is removed by passing the PCB between hot air knives.
What is black pad?
“Black pad” is a term that usually refers to nickel corrosion on electroless nickel and gold immersion, or ENIG, surface finishes on PCBs. … When those joints come under pressure, they break easily and leave behind exposed corroded nickel, hence the “black pad” name.
What is shelf life of PCB?
10 yearsSurface finishing is a PCB plating option performed at the end of bare board fabrication that protects your boards while being stored until they are assembled. Depending upon the solder used and the specific soldering method, the shelf life for your boards can be as long as 10 years.