What is PCB OSP?

OSP stands for Organic Solderability Preservative. This is a type of PCB surface finish. Its main distinguishing characteristic is that it is water-based, therefore making it environmentally friendly. It is also lead-free and provides a low planar surface.

Which surface finish is best for PCB?

Immersion silver is a non-electrolytic chemical finish applied by immersing the copper PCB into a tank of silver ions. It is a good choice finish for circuit boards with EMI shieldingand is also used for dome contacts and wire bonding. The average surface thickness of the silver is 5-18 microinches.

What is OSP package?

The Optical Sight Pistol(OSP) offers red dot mounting while including a seamless cover plate when not in use. Complimenting the OSP system is a U-Dot sight system made up of a high visibility front with a tactical rear sight.

What is HASL finish PCB?

HASL or HAL (for 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 OSP made of?

The main materials of OSP PCB are rosin, active resin, azoles, and of course the bare boards. The process maintains the copper surface using oxidation. A conveyorized technique is used to apply a water-based organic compound on the surface. The rosin coating is applied as a flux treatment.

What is Enepig finish?

ENEPIG is a type of surface finish done on copper layer to protect it from oxidation and corrosion in printed circuit boards. This surface finish improves the solderability of copper and is also RoHS compliant.

What is the difference between ENIG and hasl?

HASL is generally preferred for hand-soldering due to the easy joint formed. However, HASL leaves an uneven surface despite the leveling process. ENIG, on the other hand, provides for a very flat surface making ENIG preferable for fine pitch and high pin count components especially ball-grid array (BGA) devices.

What does OSP stand for handgun?

Optical Sight Pistol
OSP stands for “Optical Sight Pistol,” meaning this gun’s slide has been milled and drilled at the factory to make room for a variety of red-dot optics.

What is ENIG finishing?

Electroless Nickel Immersion (ENIG) ENIG is quickly becoming the most popular surface finish in the industry. It’s a double layer metallic coating, with nickel acting as both a barrier to the copper and a surface to which components are soldered. A layer of gold protects the nickel during storage.

What is Smobc in PCB?

– To provide a solderable surface when assembling (soldering) the components to. the PCB. Most surface finishes are considered SMOBC (Solder Mask Over Bare Copper).