Abstract:
This invention is directed to a device of “a tutorial and wits-increment toy car”, mainly consists of a shell body with gear case at both sides, and within the gear case sets up multiple wheels used to act as mechanical powers transfer connection between the motor and the wheels, whereas at the top and back of the shell body fixed with multiple metal buttons and hexagonal buttons. According to the former structure, altering the size of wheel can adjust the wheel rotating speed, and makes the learners understand the basic electronic and mechanical control theory while playing the toy car, and makes the present invention become a best tool of cerebration training.
Abstract:
A method for removing organic material from an opening in a low k dielectric layer and above a metal layer on a substrate is disclosed. An ozone water solution comprised of one or more additives such as hydroxylamine or an ammonium salt is applied as a spray or by immersion. A chelating agent may be added to protect the metal layer from oxidation. A diketone may be added to the ozone water solution or applied in a gas or liquid phase in a subsequent step to remove any metal oxide that forms during the ozone treatment. A supercritical fluid mixture that includes CO2 and ozone can be used to remove organic residues that are not easily stripped by one of the aforementioned liquid solutions. The removal method prevents changes in the dielectric constant and refractive index of the low k dielectric layer and cleanly removes residues which improve device performance.
Abstract:
A wet etchant solution composition and method for etching oxides of hafnium and zirconium including at least one solvent present at greater than about 50 weight percent with respect to an arbitrary volume of the wet etchant solution; at least one chelating agent present at about 0.1 weight percent to about 10 weight percent with respect to an arbitrary volume of the wet etchant solution; and, at least one halogen containing acid present from about 0.0001 weight percent to about 10 weight percent with respect to an arbitrary volume of the wet etchant solution.
Abstract:
A method for removing organic material from an opening in a low k dielectric layer and above a metal layer on a substrate is disclosed. An ozone water solution comprised of one or more additives such as hydroxylamine or an ammonium salt is applied as a spray or by immersion. A chelating agent may be added to protect the metal layer from oxidation. A diketone may be added to the ozone water solution or applied in a gas or liquid phase in a subsequent step to remove any metal oxide that forms during the ozone treatment. A supercritical fluid mixture that includes CO2 and ozone can be used to remove organic residues that are not easily stripped by one of the aforementioned liquid solutions. The removal method prevents changes in the dielectric constant and refractive index of the low k dielectric layer and cleanly removes residues which improve device performance.