The technique of providing a protective, isolating coating on the top of a semiconductor device Usually silicon dioxide is grown to provide this coating, but other materials are also used, such as glass See glassivation
The phenomenon by which a metal, although in conditions of thermodynamic instability, remains indefinitely unattacked because of modified or altered surface conditions
A protective layer of oxides on the surface of a metal which resists corrosion This passive oxide layer is the chief reason why stainless steels have such good corrosion resistant properties It is a natural phenomenon, but can be accelerated by special passivating solutions that can be applied to tubular products by an optional process
A protective layer of oxides on the surface of a metal which resists corrosion This passive oxide layer is the primary reason stainless steels have such excellent corrosion resistance
A layer of insulating material deposited over a wafer or a region of a device to stabilize and protect the surface against moisture, contamination, and mechanical damage Silicon dioxide or silicon nitride are often used for IC passivation
Protection of the junctions and surfaces of solid state electronic components and ICs from harmful environments; most commonly achieved by forming a layer of silicon dioxide on the silicon chip
Deposition of a scratch-resistant material, such as silicon nitride and/or silicon dioxide, to prevent deterioration of electronic properties caused by water, ions, and other external contaminants The final deposition layer in processing (SM*)
Usually a silicon dioxide or silicon nitride layer deposited last to seal the circuit to protect it from moisture and/or contamination The passivation layer is patterned and etched to open up on the bonding pads
When exposed in air, stainless steels passivate naturally (due to the presence of chromium) But the time required can vary In order to ensure that the passive layer reforms rapidly after pickling, a passivation treatment is performed using a solution of nitric acid and water