Finally, a CMP polish touch finishes the SOI surface to the original bulk-silicon wafer specification. Wafer A is then cut across the damage plane, and a thin layer of silicon is transferred to Wafer B to form the SOI structure. Using Van der Waals' forces, Wafer A is bonded to Wafer B. Ion implantation of hydrogen ions through the oxide into the underlying silicon forms a damage layer at the end of the ion's range. This oxide layer subsequently forms the bulk-oxide (BOX) layer of the SOI structure ( see the figure). The UNIBOND wafer is created by growing an oxide layer on one wafer (Wafer A). Based on two key techniques-ion implantation and wafer bonding-the process begins with two bulk silicon wafers, one of which is reused to create a SOI wafer later on. Thanks to the nature of this process, most standard care routines work just fine.Smart Cut is Soitec's proprietary technology, used to manufacture the company's UNIBOND SOI wafers. And caring for jewellery and watches that have been Ion Plated is easy. When Ion Plating is combined with Stainless Steel, the result is a heavy-duty, hypoallergenic piece that wears alot slower than jewellery with traditional plating methods. Also, Stainless Steel is more durable and hypoallergenic compared to other metals.
Ion Plating will stay on the jewellery longer than traditional gold plating. Gold PVD coatings can be up to ten times thicker than conventional gold plating, and provides better corrosion resistance against sweat, chlorine etcĪlthough IP plating can be used on just about any metal or surface, Stainless Steel is a favourite choice because it is considered a strong, affordable alternative to precious metals, without compromising on the look of the piece. Ion Plating has a far higher resistance to wear than traditional gold plating. Conventional gold-plating gives the product the exact look of solid gold, but offers extremely low durability, is very easily scratched, and will start to tarnish within 12 to 18 months. This base material can be Sterling Silver, Nickel, Copper, Brass or Stainless Steel. Traditional gold plating is the process of laying a infinitesimally thin layer of real gold onto a base metal. Neither method adds any extra value to the piece. Difference between Ion Plating v's traditional Gold Platingīoth plating methods give the finished product the look and feel of a solid gold product. This can reduce costs drastically and makes the jewellery more affordable, as well as more environmentally friendly.Įxperiments on Ion Plating have shown that IP plated surfaces are five to eight times more durable, and more resilient to corrosion and wear compared to other plating processes. Due to this bonding process, less material is needed to coat the item. It involves adding a titanium nitride layer to the base metal, in a vapor form, where the surface is then bombarded by atomic sized energetic particles. Ion Plating is metal bonding at the molecular level. Ion Plating, also known as IP Plating or PVD (Physical Vapour Deposition process) is a relatively new surface coating technique in jewellery, which was developed in 2010 by NASA scientists creating a viable alternative for chrome plating, which could chip off when banged.
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