Coulomb's law

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Coulomb's law

Etymology: Charles A. de Coulomb
(in physics) a law stating that the force of attraction or repulsion between two electrically charged bodies is directly proportional to the strength of the electrical charges and inversely proportional to the square of the distance between them.
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Only electrostatic attraction or physical adsorption involved in the adsorption mechanism.
Thus, the adsorption mechanism of MB on MCC was predominantly due to electrostatic attraction, which was categorized as physical adsorption.
With increasing pH, the negative surface charge on variable charge soils increases, which consequently induces more Zn(II) to be adsorbed by the soils through electrostatic attraction.
It was noted: (1) variable charge soils have a great adsorption capacity for arsenate because the soils have large contents of iron and aluminium oxides; (2) the presence of arsenate induced the increase in the adsorption of Zn(II) in variable charge soils, and the extent of the effect was greatly dependent on the initial concentrations of arsenate and Zn(II), the system pH, and the nature of soils, particularly the content of iron oxides present in the soils; (3) the enhanced adsorption of Zn(II) in the presence of arsenate was mainly due to the increase in soil negative surface charge that occurred through the specific adsorption of arsenate on the soil and thus the increase in electrostatic attraction of soil surface for Zn(II).
So electrostatic attraction force maybe plays a dominant role in this IL system and NBO research results supported this prediction.
On balance, the electrostatic attraction force must be taken into consideration when we attempt to change the physical and chemical properties of ILs.
ASML's compliance with SEMI E78-0998 standard, Electrostatic Compatibility: Guide to Assess and Control Electrostatic Discharge (ESD) and Electrostatic Attraction (ESA) for Equipment, demonstrates the absence of electrostatic charging of reticles and wafers in its tools, which is necessary to avoid ESD-related yield losses.
The size of a "killer" particle decreases in step with the shrinking size of features, so electrostatic attraction (ESA) is also a real detriment to IC production.
Properly grounding of the part is required to optimize the electrostatic attraction, and is accomplished in several ways, including (but not limited to) the application of electrostatic prep coats or primers, the use of metal work holders, and the use of conductive additives in the molding process.
The new SEMI International Standard -- SEMI E78-0998 - Electrostatic Compatibility - Guide to Assess and Control Electrostatic Discharge (ESD) and Electrostatic Attraction (ESA) for Equipment, provides manufacturing standardization designed to enable chipmakers worldwide to achieve maximum productive capacity.
Steinman observed that ionization programs in semiconductor manufacturing environments are a proven method of controlling the impact of electrostatic discharge, electrostatic attraction, and electromagnetic interference; thereby, increasing yields and overall fab productivity.
CleanPOINT is an innovative water filtration method based on the principle of electrostatic attraction.

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