摘要:
An etchant composition includes about 0.5 weight % to about 20 weight % of persulfate, about 0.01 weight % to about 2 weight % of a fluoride compound, about 1 weight % to about 10 weight % of an inorganic acid, about 0.5 weight % to about 5 weight % of a cyclic amine compound, about 0.1 weight % to about 10.0 weight % of a compound having an amino group and a sulfonic acid, about 0.1 weight % to about 15.0 weight % of an organic acid or a salt thereof, and water to 100 weight % of the etchant composition.
摘要:
An etchant includes: 5 to 20 wt % of persulfate, 1 to 10 wt % of at least one compound of an inorganic acid, an inorganic acid salt, or a mixture thereof, 0.3 to 5 wt % of a cyclic amine compound, 1 to 10 wt % of at least one compound of an organic acid, an organic acid salt, or a mixture thereof, 0.1 to 5 wt % of p-toluenesulfonic acid, and water, based on the total weight of the etchant. A copper-titanium etchant further includes 0.01 to 2 wt % of a fluoride-containing compound. A method of forming a display device using the etchant, and a display device, are also disclosed.
摘要:
A display substrate may include a substrate and a wiring on the substrate. The wiring may include a metal oxide layer including at least one oxide selected from tantalum (Ta), niobium (Nb), and titanium (Ti), and a metal layer on the metal oxide layer and including copper (Cu), and a thickness of the metal oxide layer may be in a range of about 30 angstroms (Å) to about 50 Å.
摘要:
A etchant composition that includes, based on a total weight of the etchant composition, about 0.5 wt % to about 20 wt % of a persulfate, about 0.5 wt % to about 0.9 wt % of an ammonium fluoride, about 1 wt % to about 10 wt % of an inorganic acid, about 0.5 wt % to about 5 wt % of a cyclic amine compound, about 0.1 wt % to about 10.0 wt % of a sulfonic acid, about 5 wt % to about 10 wt % of an organic acid or a salt thereof, and a remainder of water. The etchant composition may be configured to etch a metal layer including copper and titanium, to form a metal wire that may be included in a thin film transistor array panel of a display device.
摘要:
An etchant composition includes about 0.5 weight % to about 20 weight % of persulfate, about 0.01 weight % to about 2 weight % of a fluoride compound, about 1 weight % to about 10 weight % of an inorganic acid, about 0.5 weight % to about 5 weight % of a cyclic amine compound, about 0.1 weight % to about 10.0 weight % of a compound having an amino group and a sulfonic acid, about 0.1 weight % to about 15.0 weight % of an organic acid or a salt thereof, and water to 100 weight % of the etchant composition.
摘要:
A method of forming a metal pattern includes disposing a gate metal layer on a substrate; disposing a photoresist layer on the gate metal layer; etching portions of the photoresist layer to form a first photo pattern; etching portions of the gate metal layer to form a gate pattern including a gate electrode, in which the gate metal layer is patterned using the first photo pattern as a mask; ashing an end portion of the first photo pattern to form a second photo pattern; disposing a first gate insulating layer over the substrate and the second photo pattern; removing the second photo pattern and a portion of the first gate insulating layer disposed over the second photo pattern; and disposing a second insulating layer over the gate pattern and the remaining portions of the first gate insulating layer.
摘要:
A etchant composition that includes, based on a total weight of the etchant composition, about 0.5 wt % to about 20 wt % of a persulfate, about 0.5 wt % to about 0.9 wt % of an ammonium fluoride, about 1 wt % to about 10 wt % of an inorganic acid, about 0.5 wt % to about 5 wt % of a cyclic amine compound, about 0.1 wt % to about 10.0 wt % of a sulfonic acid, about 5 wt % to about 10 wt % of an organic acid or a salt thereof, and a remainder of water. The etchant composition may be configured to etch a metal layer including copper and titanium, to form a metal wire that may be included in a thin film transistor array panel of a display device.
摘要:
An etchant composition is provided comprising a persulfate from 0.5 to 20 wt %; a fluoride compound from 0.01 to 2 wt %; an inorganic acid from 1 to 10 wt %; a N (nitrogen atom)-containing heterocyclic compound from 0.5 to 5 wt %; a chloride compound from 0.1 to 5 wt %; a copper salt from 0.05 to 3 wt %; an organic acid or an organic acid salt from 0.1 to 10 wt %; an electron-donating compound from at 0.1 to 5 wt %; and a solvent of the residual amount. Also provided is a method of manufacturing a display device by using the same.
摘要:
A method of forming a metal pattern includes disposing a gate metal layer on a substrate; disposing a photoresist layer on the gate metal layer; etching portions of the photoresist layer to form a first photo pattern; etching portions of the gate metal layer to form a gate pattern including a gate electrode, in which the gate metal layer is patterned using the first photo pattern as a mask; ashing an end portion of the first photo pattern to form a second photo pattern; disposing a first gate insulating layer over the substrate and the second photo pattern; removing the second photo pattern and a portion of the first gate insulating layer disposed over the second photo pattern; and disposing a second insulating layer over the gate pattern and the remaining portions of the first gate insulating layer.
摘要:
An etchant composition is provided comprising a persulfate from 0.5 to 20 wt %; a fluoride compound from 0.01 to 2 wt %; an inorganic acid from 1 to 10 wt %; a N (nitrogen atom)-containing heterocyclic compound from 0.5 to 5 wt %; a chloride compound from 0.1 to 5 wt %; a copper salt from 0.05 to 3 wt %; an organic acid or an organic acid salt from 0.1 to 10 wt %; an electron-donating compound from at 0.1 to 5 wt %; and a solvent of the residual amount. Also provided is a method of manufacturing a display device by using the same.