摘要:
An integrated in situ cluster type wafer processing apparatus which can be used for forming metal wiring layers having a multi-layered structure and a wafer processing method using the same are provided. The wafer processing apparatus includes a transfer chamber which can be exhausted and has a plurality of gate valves, a plurality of vacuum processing chambers each of which can be connected to the transfer chamber via one of the gate valves, and a load lock chamber which can be exhausted and is connectable to a first gas feed line for feeding an oxygen-based gas into the load lock chamber. In a wafer processing method, a predetermined layer is formed on a wafer in one of the vacuum processing chambers. The predetermined layer on the wafer is oxidized in the load lock chamber or an oxygen atmosphere chamber.
摘要:
An integrated in situ cluster type wafer processing apparatus which can be used for forming metal wiring layers having a multi-layered structure and a wafer processing method using the same are provided. The wafer processing apparatus includes a transfer chamber which can be exhausted and has a plurality of gate valves, a plurality of vacuum processing chambers each of which can be connected to the transfer chamber via one of the gate valves, and a load lock chamber which can be exhausted and is connectable to a first gas feed line for feeding an oxygen-based gas into the load lock chamber. In a wafer processing method, a predetermined layer is formed on a wafer in one of the vacuum processing chambers. The predetermined layer on the wafer is oxidized in the load lock chamber or an oxygen atmosphere chamber.
摘要:
Methods of forming a metal interconnects include forming an electrically insulating layer having a contact hole therein, on a substrate. A step is also performed to form an electrically conductive seed layer. The seed layer extends on a sidewall of the contact hole and on a portion of an upper surface of the electrically insulating layer extending adjacent the contact hole. The seed layer is sufficiently thick along an upper portion of the sidewall and sufficiently thin along a lower portion of the sidewall that an upper portion of the contact hole is partially constricted by the seed layer and a constricted contact hole is thereby defined. An anti-nucleation layer is deposited on a portion of the seed layer that extends outside the constricted contact hole. The constricted contact hole is used as a mask to inhibit deposition of the anti-nucleation layer adjacent a bottom of the constricted contact hole. A metal liner is then formed on a portion of the electrically conductive seed layer that defines a sidewall of the constricted contact hole. Next, a metal interconnect layer is reflowed into the constricted contact hole to thereby fill and bury the contact hole.
摘要:
A method is provided for forming a metal wiring layer of a semiconductor device, which is performed in an airtight space, the pressure of which is maintained below atmospheric pressure, to form a metal deposition prevention layer. An interlayer dielectric layer pattern is formed on a semiconductor substrate so as to define a hole region. A metal film is formed on the top surface of the interlayer dielectric layer pattern under a vacuum state so as to expose the side walls of the hole region. The metal layer is oxidized in the airtight space, the pressure of which is maintained below atmospheric pressure in an oxygen atmosphere, thereby forming a metal deposition prevention layer. A metal liner is selectively formed at the side walls of the hole region. A metal layer is formed inside the hole region defined by the metal liner and on the metal deposition prevention layer. The metal liner is heat-treated and reflowed.
摘要:
A metal interconnection of a semiconductor device is fabricated by forming a dielectric pattern including a hole therein on a substrate, and forming a barrier metal layer in the hole and on the dielectric layer pattern outside the hole. At least some of the barrier metal layer is oxidized. An anti-nucleation layer is selectively formed on the oxidized barrier metal layer outside the hole that exposes the oxidized barrier metal layer in the hole. A metal layer then is selectively formed on the exposed oxidized barrier layer in the hole.
摘要:
A metal interconnection of a semiconductor device is fabricated by forming a dielectric pattern including a hole therein on a substrate, and forming a barrier metal layer in the hole and on the dielectric layer pattern outside the hole. At least some of the barrier metal layer is oxidized. An anti-nucleation layer is selectively formed on the oxidized barrier metal layer outside the hole that exposes the oxidized barrier metal layer in the hole. A metal layer then is selectively formed on the exposed oxidized barrier layer in the hole.
摘要:
A metal interconnection of a semiconductor device is fabricated by forming a dielectric pattern including a hole therein on a substrate, and forming a barrier metal layer in the hole and on the dielectric layer pattern outside the hole. At least some of the barrier metal layer is oxidized. An anti-nucleation layer is selectively formed on the oxidized barrier metal layer outside the hole that exposes the oxidized barrier metal layer in the hole. A metal layer then is selectively formed on the exposed oxidized barrier layer in the hole.
摘要:
A method for forming a metal interconnection filling a contact hole or a groove having a high aspect ratio, and a contact structure fabricated thereby. An interdielectric layer pattern, having a recessed region serving as a contact hole, a via hole or a groove, is formed on a semiconductor substrate. A barrier metal layer is formed on the entire surface of the resultant structure where the interdielectric layer pattern is formed. An anti-nucleation layer is selectively formed only on the non-recessed region of the barrier metal layer. The anti-nucleation layer is formed by forming a metal layer overlying the barrier metal layer in regions other than the recessed region, and then spontaneously oxidizing the metal layer in a vacuum. Also, the anti-nucleation layer may be formed by in-situ forming the barrier metal layer and the metal layer and then oxidizing the metal layer by an annealing process. Subsequently, a metal plug is selectively formed in the recessed region, surrounded by the barrier metal layer, thereby forming a metal interconnection for completely filling the contact hole or the groove having a high aspect ratio. A metal liner may be formed instead of the metal plug, followed by forming a metal layer filling the region surrounded by the metal liner, thereby forming a metal interconnection for completely filling the contact hole or groove having a high aspect ratio.
摘要:
Methods of forming a metal wiring layer on an integrated circuit include forming an insulating pattern including a recess region on an integrated circuit substrate. A metal layer is formed in the recess region and on a top surface of the insulting pattern. The metal layer is removed from the top surface of the insulating pattern adjacent the recess region and from an upper portion of the recess region. An aluminum film is formed on the metal layer at a process temperature less than a reflow temperature of the metal layer to substantially fill the upper portion of the recess region after removing the metal layer. A metal film is formed on the aluminum film at a process temperature less than the reflow temperature of the etched metal layer.
摘要:
According to example embodiments, a method of forming micropatterns includes forming dummy patterns having first widths on a dummy region of a substrate, and forming cell patterns having second widths on an active line region of the substrate. The active line region may be adjacent to the dummy region and the second widths may be less than the first widths. The method may further include forming damascene metallization by forming a seed layer on the active line region and the dummy region, forming a conductive material layer on a whole surface of the substrate, and planarizing the conductive material layer to form metal lines.