# overplate
## English
### Etymology

From over- +‎ plate.

### Noun

overplate (plural overplates)
* In armour, a large pauldron protecting the shoulder, or a cubitiere protecting the elbow.
* A layer of metal that covers an undercoat.
** 1981, Diesel Progress North American - Volume 47, page 34:Fatigue or cracking due to cyclic loading of the overplate is influenced by its thickness.
** 2001, Karl J. Puttlitz, Paul Totta, Area Array Interconnection Handbook, →ISBN, page 846:Although a minimum 30 micro-inch Au layer is the normal connector contact overplate thickness, a 30 micro-inch layer of nickel-palladium (Ni/Pd) with a Au flash has been reported resistant to both and hydrogen BGA
* A flat protective sheet that covers something
** 1994, Keith F. Thomas, Prosthetic Rehabilitation, page 96:The next phase is to adapt a wax sheet to fit against the vertical flange of the stage, so forming an overplate.
* (geology) A tectonic plate that has moved over and covered another tectonic plate.
** 2012, Franco Pirajno, Hydrothermal Mineral Deposits, →ISBN:The once near-surface rocks will be relatively more oxidised, so that the fluids will tend to oxidise the overplate and, consequently will not precipitate silica but rather dissolve it.

### Verb

overplate (third-person singular simple present overplates, present participle overplating, simple past and past participle overplated)
* To form an overplate.
** 1973, William H. Safranek, Eric W. Brooman, Finishing and electroplating die cast and wrought zinc, page 21:Pits in the nickel plate were introduced by accelerated corrosion testing and the casting was overplated with copper before sectioning.
** 1992, Linda G. Cima, Eyal S. Ron, Tissue-inducing Biomaterials: Symposium Held December 4-6, 1991, Boston:The mesenchymal or cell-matrix tissue can be constituted with smooth muscle cells and overplated with endothelial cells to simulate the wall of an arterial vessel.
** 2012, Raymond H. Clark, Handbook of Printed Circuit Manufacturing, →ISBN, page 285:Obviously, it does little good to meet the tolerance of the +0.005 inch, only to overplate the holes with lesser tolerance.
** 2012, Roger Narayan, Susmita Bose, Amit Bandyopadhyay, Biomaterials Science: Processing, Properties and Applications II, →ISBN:If there is free iron on the surface, copper will overplate onto iron.
* (geology, of a tectonic plate) To move on top of and cover another tectonic plate.
** 1996, Journal of Geoscience Education - Volume 44, page 496:Reflectance spectroscopy (Roush and others, 1993) suggests Mars has a dominantly basaltic crust, but this result may apply only to the surficial rocks, which could be overplated basalt (Lowman, 1989).
** 2012, Franco Pirajno, Hydrothermal Mineral Deposits, →ISBN:...which may have overplated the Archean continents in response to the widespread rifting characteristics of this time of the Earth's history.
* To form an overly thick plate on top of something.
** 2007, Takeshi Hattori, Cleaning and Surface Conditioning Technology in Semiconductor Device Manufacturing 10, →ISBN:A comparison is shown in figure 1 where it can be seen that with positive photoresist (top) the solder is overplated and with thick negative photoresist (bottom) the solder remains in the photresist pattern.

### Anagrams

* overleapt