摘要:
The Mo or MoW composition layer has the low resistivity less than 15 &mgr;&OHgr;cm and is etched to have a smooth taper angle using an Al alloy etchant or a Cr etchant, and the Mo or MoW layer is used for a wiring of a display or a semiconductor device along with an Al layer and a Cr layer. Since the Mo or MoW layer can be deposited so as to give low stress to the substrate by adjusting the deposition pressure, a single MoW layer can used as a wiring by itself. When contact holes are formed in the passivation layer or the gate insulating layer, a lateral etch is reduced by using a polymer layer, an etch gas system CF4+O2 can prevent the etch of the Mo or MoW alloy layer, and an etch gas SF6+HCl(+He) or SF6+Cl2(+He) can form the edge profile of contact holes to be smoothed. Also, when an amorphous silicon layer formed under the Mo or MoW layer is etched by using the Mo or MoW layer as a mask, to use an etch gas system such as hydrogen halide and at least one selected from CF4, CHF3, CHClF2, CH3F and C2F6 yield the good characteristics of TFT, and H2 plasma treatment can cause the characteristics of the TFT to be improved.
摘要:
The Mo or MoW composition layer has a low resistivity of less than 15 &mgr;&OHgr;cm and is etched to have a smooth taper angle using an Al alloy enchant or a Cr enchant, and the Mo or MoW layer is used for a wiring of a display or a semiconductor display along with an Al layer or a Cr layer. Since the Mo or MoW layer can be deposited so as to give low stress to the substrate by adjusting the deposition pressure, a single MoW layer can be used as a wiring by itself. When contact holes are formed in the passivation layer or the gate insulating layer, a lateral etch is reduced by using polymer layer, an etch gas system using CF4+O2 can prevent the etch of the Mo or MoW alloy layer, and an etch gas of SF6+HCl(+He) or SF6+Cl2(+He) can form the edge profile of contact holes to be smoothed. Also, when an amorphous silicon layer formed under the Mo or MoW layer is etched using the Mo or MoW layer as a mask, using an etch gas system that employs a gas such as hydrogen halide and at least one gas selected from CF4, CHF3, CHClF2, CH3F, and C2F6, yields good TFT characteristics, and H2 plasma treatment can further improve the TFT characteristics.
摘要:
The Mo or MoW composition layer has a low resistivity of less than 15 &mgr;&OHgr;cm and is etched to have a smooth taper angle using an Al alloy enchant or a Cr enchant, and the Mo or MoW layer is used for a wiring of a display or a semiconductor display along with an Al layer or a Cr layer. Since the Mo or MoW layer can be deposited so as to give low stress to the substrate by adjusting the deposition pressure, a single MoW layer can be used as a wiring by itself. When contact holes are formed in the passivation layer or the gate insulating layer, a lateral etch is reduced by using polymer layer, an etch gas system using CF4+O2 can prevent the etch of the Mo or MoW alloy layer, and an etch gas of SF6+HCl (+He) or SF6+Cl2 (+He) can form the edge profile of contact holes to be smoothed. Also, when an amorphous silicon layer formed under the Mo or MoW layer is etched using the Mo or MoW layer as a mask, using an etch gas system that employs a gas such as hydrogen halide and at least one gas selected from CF4, CHF3, CHClF2, CH3F, and C2F6, yields good TFT characteristics, and H2 plasma treatment can further improve the TFT characteristics.
摘要:
The Mo or MoW composition layer has a low resistivity of less than 15 &mgr;&OHgr;cm and is etched to have a smooth taper angle using an Al alloy enchant or a Cr enchant, and the Mo or MoW layer is used for a wiring of a display or a semiconductor display along with An Al layer or a Cr layer. Since the Mo or MoW layer can be deposited so as to give low stress to the substrate by adjusting the deposition pressure, a single MoW layer can be used as a wiring by itself. When contact holes are formed in the passivation layer or the gate insulating layer, a lateral etch is reduced by using polymer layer, an etch gas system using CF4+O2 can prevent the etch of the Mo or MoW alloy layer, and an etch gas of SF6+HCl (+He) or SF6+Cl2 (+He) can form the edge profile of contact holes to be smoothed. Also, when an amorphous silicon layer formed under the Mo or MoW layer is etched using the Mo or MoW layer as a mask, using an etch gas system that employs a gas such as hydrogen halide and at least one gas selected from CF4, CHF3, CHClF2, CH3F, and C2F6, yields good TFT characteristics, and H2 plasma treatment can further improve the TFT characteristics.
摘要:
The Mo or MoW composition layer has the low resistivity less than 15 &mgr;&OHgr;cm and is etched to have a smooth taper angle using an Al alloy etchant or a Cr etchant, and the Mo or MoW layer is used for a wiring of a display or a semiconductor device along with an Al layer and a Cr layer. Since the Mo or MoW layer can be deposited so as to give low stress to the substrate by adjusting the deposition pressure, a single MoW layer can used as a wiring by itself. When contact holes are formed in the passivation layer or the gate insulating layer, a lateral etch is reduced by using a polymer layer, an etch gas system CF4+O2 can prevent the etch of the Mo or MoW alloy layer, and an etch gas SF6+HCl(+He) or SF6+Cl2(+He) can form the edge profile of contact holes to be smoothed. Also, when an amorphous silicon layer formed under the Mo or MoW layer is etched by using the Mo or MoW layer as a mask, to use an etch gas system such as hydrogen halide and at least one selected from CF4, CHF3, CHClF2, CH3F and C2F6 yield the good characteristics of TFT, and H2 plasma treatment can cause the characteristics of the TFT to be improved.
摘要:
The Mo or MoW composition layer has a low resistivity of less than 15 μΩcm and is etched to have a smooth taper angle using an Al alloy enchant or a Cr enchant, and the Mo or MoW layer is used for a wiring of a display or a semiconductor display along with an Al layer or a Cr layer. Since the Mo or MoW layer can be deposited so as to give low stress to the substrate by adjusting the deposition pressure, a single MoW layer can be used as a wiring by itself. When contact holes are formed in the passivation layer or the gate insulating layer, a lateral etch is reduced by using polymer layer, an etch gas system using CF4+O2 can prevent the etch of the Mo or MoW alloy layer, and an etch gas of SF6+HCl (+He) or SF6+Cl2 (+He) can form the edge profile of contact holes to be smoothed. Also, when an amorphous silicon layer formed under the Mo or MoW layer is etched using the Mo or MoW layer as a mask, using an etch gas system that employs a gas such as hydrogen halide and at least one gas selected from CF4, CHF3, CHClF2, CH3F, and C2F6, yields good TFT characteristics, and H2 plasma treatment can further improve the TFT characteristics.
摘要:
The Mo or MoW composition layer has a low resistivity of less than 15 &mgr;&OHgr;cm and is etched to have a smooth taper angle using an Al alloy enchant or a Cr enchant, and the Mo or MoW layer is used for a wiring of a display or a semiconductor display along with an Al layer or a Cr layer. Since the Mo or MoW layer can be deposited so as to give low stress to the substrate by adjusting the deposition pressure, a single MoW layer can be used as a wiring by itself. When contact holes are formed in the passivation layer or the gate insulating layer, a lateral etch is reduced by using polymer layer, an etch gas system using CF4+O2 can prevent the etch of the Mo or MoW alloy layer, and an etch gas of SF6+HCl (+He) or SF6+Cl2 (+He) can form the edge profile of contact holes to be smoothed. Also, when an amorphous silicon layer formed under the Mo or MoW layer is etched using the Mo or MoW layer as a mask, using an etch gas system that employs a gas such as hydrogen halide and at least one gas selected from CF4, CHF3, CHClF2, CH3F, and C2F6, yields good TFT characteristics, and H2 plasma treatment can further improve the TFT characteristics.
摘要:
The Mo or MoW composition layer has a low resistivity of less than 15 &mgr;&OHgr;cm and is etched to have a smooth taper angle using an Al alloy enchant or a Cr enchant, and the Mo or MoW layer is used for a wiring of a display or a semiconductor display along with an Al layer or a Cr layer. Since the Mo or MoW layer can be deposited so as to give low stress to the substrate by adjusting the deposition pressure, a single MoW layer can be used as a wiring by itself. When contact holes are formed in the passivation layer or the gate insulating layer, a lateral etch is reduced by using polymer layer, an etch gas system using CF4+O2 can prevent the etch of the Mo or MoW alloy layer, and an etch gas of SF6+HCl (+He) or SF6+Cl2 (+He) can form the edge profile of contact holes to be smoothed. Also, when an amorphous silicon layer formed under the Mo or MoW layer is etched using the Mo or MoW layer as a mask, using an etch gas system that employs a gas such as hydrogen halide and at least one gas selected from CF4, CHF3, CHClF2, CH3F, and C2F6, yields good TFT characteristics, and H2 plasma treatment can further improve the TFT characteristics.
摘要:
Since Mo or MoW layer can be deposited so as to give low stress to the substrate by adjusting the deposition pressure, a single Mo or MoW layer can be used as a wiring by itself of large scale and high resolution liquid crystal. The Mo or MoW layer has the low resistivity of less than 15 .mu..OMEGA.cm and is etched to have a smooth taper angle using an Al etchant with Al or Al alloy. Therefore, it is possible to reduce the number of photolithography processes and to prevent a battery effect and generation of a hillock.
摘要:
A wire for a liquid crystal display has a dual-layered structure comprising a first layer made of molybdenum or molybdenum alloy, and a second layer made of molybdenum nitride or molybdenum alloy nitride. To manufacture the wire, a layer made of either a molybdenum or a molybdenum alloy, and another layer one of either a molybdenum nitride or molybdenum alloy nitride by using reactive sputtering method are deposited in sequence, and then patterned simultaneously. The target for reactive sputtering is made of either molybdenum or molybdenum alloy, and the molybdenum alloy comprises one selected from the group consisting of tungsten, chromium, zirconium, and nickel of the content ratio of 0.1 to less than 20 atm % of. The reactive gas mixture for reactive sputtering includes an argon gas and inflow amount of the nitrogen gas is at least 50% of argon gas, to minimize the etch rate of the molybdenum nitride layer or the molybdenum alloy nitride layer for ITO etchant.