摘要:
A method of manufacturing phosphorus pentafluoride and hexafluorophosphate can suppress the manufacturing cost and also can manufacture high-quality phosphorus pentafluoride from an inexpensive and low-quality raw material. The raw material for the method can include at least a phosphorus atom and a fluorine atom. These are brought into contact with a carrier gas, and a phosphorus pentafluoride is extracted and separated into the carrier gas. A method of manufacturing hexafluorophosphate includes reacting fluoride with the resulting phosphorus pentafluoride according to the following chemical reaction scheme: sPF5+AFs→A(PF6)s, in which s is in the range of 1≦s≦3, and A is at least one of the following: Li, Na, K, Rb, Cs, NH4, Ag, Mg, Ca, Ba, Zn, Cu, Pb, Al and Fe.
摘要:
Disclosed is a process for producing a fluoride gas that can produces fluoride gases such as BF3, SiF4, GeF4, PF5 or AsF5 at a reduced production cost in a simple manner. The process is characterized in that a compound containing an atom, which, together with a fluorine atom, can form a polyatomic ion, is added to a hydrogen fluoride solution to produce the polyatomic ion in a hydrogen fluoride solution and to evolve a fluoride gas comprising the fluorine atom and the atom that, together with the fluorine atom, can form a polyatomic ion.
摘要:
The present invention provides a micromachining surface treatment material for and a surface treatment method that suppress widening of the diameter of contact holes when removing a natural oxidation layer arising at bottom sections of the contact holes. The micromachining surface treatment material contains less than 0.1% hydrofluoric acid, and more than 40% by weight but less than or equal to 47% by weight of ammonium fluoride. Also, a surfactant is contained therein in an amount from 0.0001 to 0.1% by weight.
摘要:
A surface treatment solution for finely processing a glass substrate containing multiple ingredients is used for the construction of liquid crystal-based or organic electroluminescence-based flat panel display devices without invoking crystal precipitation and/or increasing surface roughness. An etching solution of the invention contains, in addition to hydrofluoric acid (HF) and ammonium fluoride (NH4F), at least one acid whose dissociation constant is larger than that of HF. The concentration of the acid in the solution can advantageously be adjusted to maximize the etching rate.
摘要:
An etching agent which can etch insulating film with high speeds without damaging the resist pattern, provide realistic throughput when the insulting film etching process in the semiconductor manufacturing process is replaced with the single wafer processing etching treatment method, and prevent roughness on the surface of the semiconductor after etching.
摘要:
An etching treatment agent which can etch insulating film with high speeds without damaging the resist pattern, provide realistic throughput when the insulting film etching process in the semiconductor manufacturing process is replaced with the single wafer processing etching treatment method, and prevent roughness on the surface of the semiconductor after etching.
摘要:
Disclosed is a process for producing a fluoride gas that can produces fluoride gases such as BF3, SiF4, GeF4, PF5 or AsF5 at a reduced production cost in a simple manner. The process is characterized in that a compound containing an atom, which, together with a fluorine atom, can form a polyatomic ion, is added to a hydrogen fluoride solution to produce the polyatomic ion in a hydrogen fluoride solution and to evolve a fluoride gas comprising the fluorine atom and the atom that, together with the fluorine atom, can form a polyatomic ion.
摘要:
An object is to provide a method of manufacturing a hexafluorophosphate, that can simply and easily manufacture an inexpensive and high-quality hexafluorophosphate while suppressing the manufacturing cost, an electrolytic solution containing a hexafluorophosphate, and an electricity storage device including the electrolytic solution. The present invention relates to a method of manufacturing a hexafluorophosphate, which comprises reacting at least a phosphorus compound with a fluoride represented by MFs.r(HF) (wherein 0≦r≦6, 1≦s≦3, and M is at least one kind selected from the group consisting of Li, Na, K, Rb, Cs, NH4, Ag, Mg, Ca, Ba, Zn, Cu, Pb, Al and Fe) to produce a hexafluorophosphate represented by the chemical formula M(PF6)s.
摘要:
A method of manufacturing phosphorus pentafluoride and hexafluorophosphate can suppress the manufacturing cost and also can manufacture high-quality phosphorus pentafluoride from an inexpensive and low-quality raw material. The raw material for the method can include at least a phosphorus atom and a fluorine atom. These are brought into contact with a carrier gas, and a phosphorus pentafluoride is extracted and separated into the carrier gas. A method of manufacturing hexafluorophosphate includes reacting fluoride with the resulting phosphorus pentafluoride according to the following chemical reaction scheme: sPF5+AFs→A(PF6)s, in which s is in the range of 1≦s≦3, and A is at least one of the following: Li, Na, K, Rb, Cs, NH4, Ag, Mg, Ca, Ba, Zn, Cu, Pb, Al and Fe.
摘要:
A surface treatment solution for finely processing a glass substrate containing multiple ingredients like the one used for the construction of a liquid crystal-based or organic electroluminescence-based flat panel display device, without evoking crystal precipitation and surface roughness. An etching solution of the invention contains, in addition to hydrofluoric acid (HF), at least one acid whose dissociation constant is larger than that of HF. The concentration of the acid in the solution is adjusted.