摘要:
An apparatus for treating a wafer manufactured from semiconducting material, the apparatus comprising a first and a second housing part arranged for movement away front and towards each other, the two housing parts bounding a treatment chamber, while around the treatment chamber there is provided a first groove connected to gas discharge means, while in at least one of the two boundary surfaces there is provided a second groove connected to gas feed means, the first groove being located radially within the second groove, and, in use, the pressure created by the gas feed means being such that from the second groove, gas flows both in radial inward and in radial outward direction in the gap between the first and the second boundary surface.
摘要:
An apparatus for thermally processing a wafer at an elevated temperature, in which a processing position is bounded at least on one side by a housing part which, in use, is at an elevated temperature, the apparatus being provided with measuring means for determining the position of a wafer in the processing position before and/or during processing, the measuring means being provided with at least one signal processor and at least one signal conductor, the or each signal processor being located at a distance from the processing position in an area of lower temperature, the signal conductor extending through the housing part being at an elevated temperature and extending from a measuring point in or near the processing position to the signal processor for transmitting to the signal processor contactlessly obtained measuring signals, the at least one signal conductor, at least the part extending through the housing part being at an elevated temperature, being heat resistant.
摘要:
Apparatus, method and system for the treatment of a wafer. After a treatment at elevated temperature, a wafer is taken out of the reactor in question with the help of a mechanical transport apparatus which preferably grips the wafer around the circumference and on the under side and consists of a wafer surrounding ring. The wafer is then placed in a floating wafer reactor where it is cooled in a controlled manner. Transport for further action or treatment then takes place.
摘要:
In an apparatus for a treatment of a wafer at elevated temperatures, the wafer is taken out of the reactor after heat treatment with the help of a mechanical transport apparatus which preferably grips the wafer around the circumference and on the under side. The transport apparatus includes a wafer surrounding ring. The wafer is placed in a floating wafer reactor where it is cooled in a controlled manner. Transport for further action or treatment then takes place.
摘要:
In a method and apparatus for the thermal treatment of semiconductor substrates, such as a wafer, a wafer is brought into a heat treatment apparatus wherein the heat treatment apparatus comprises two substantially flat parts parallel to the introduction position of the wafer, between which the wafer is taken in. The first part is heated to a first high temperature and the second part is cooled with the help of cooling means and is at a second temperature lower than 70° C. By controlling the heat conductivity between the wafer and at least one of the parts, the temperature of the wafer can be influenced to such an extent that during a certain period, the wafer takes on a temperature that is comparatively closer to the first, high temperature and then takes on a temperature which is comparatively closer to the second low temperature.
摘要:
Disclosed is a process tunnel (102) through which substrates (140) may be transported in a floating condition between two gas bearings (124, 134). To monitor the transport of the substrates through the process tunnel, the upper and lower walls (120, 130) of the tunnel are fitted with at least one substrate detection sensor (S1, . . . , S6) at a respective substrate detection sensor location, said substrate detection sensor being configured to generate a reference signal reflecting a presence of a substrate between said first and second walls near and/or at said substrate detection sensor location. Also provided is a monitoring and control unit (160) that is operably connected to the at least one substrate detection sensor (S1, . . . , S6), and that is configured to record said reference signal as a function of time and to process said reference signal.
摘要:
Device for the floating accommodation of a wafer. This device comprises two mutually opposite parts which delimit a chamber in which the wafer is placed. By gas being supplied from opposite sides, the wafer is held in a floating position. To prevent the wafer from touching the lateral boundaries, it is proposed to provide a discharge of gas at least partially near the circumference of the chamber wherein the wafer is accommodated. This discharge is realised such that if the wafer moves from the intended position to such a gas discharge, by closing of said gas discharge, the pressure is locally increased such that a force is generated acting in opposite direction to return the wafer in the intended position.
摘要:
Method and device for the heat treatment of substrates, wherein the substrates are positioned in the vicinity of a heated, essentially flat furnace body extending over the surface of the substrate. In order to provide a reproducible treatment when treating a number of substrates successively, the temperature of the furnace body is measured so close to the surface adjacent to the substrate that the withdrawal of heat from the furnace body by the substrate can be detected. The introduction of each substrate takes place at a point in time when the temperature measured in this way is, within certain limits, equal to a desired initial treatment temperature Ttrig.
摘要:
Method and device for rotating a wafer which is arranged floating in a reactor. The wafer is treated in a reactor of this nature, and it is important for this treatment to be carried out as uniformly as possible. For this purpose, it is proposed to rotate the wafer by allowing the gas flow to emerge perpendicular to the surface of the wafer and then to impart to this gas a component which is tangential with respect to the wafer, thus generating rotation. This tangential component may be generated by the provision of grooves, which may be of spiral or circular design.
摘要:
Floating wafer provided with heating elements which, by means of a controller, keep the walls of the floating wafer reactor at the desired temperature. By means of the sensors arranged in the walls, this temperate is kept substantially constant. To compensate for the temperature drop occurring during the entering of a wafer, which is caused by the absorption of warmth by the comparatively cold wafer, and to limit temperature variation in the processing area as much as possible, it is proposed to immediately supply an amount of energy to the heating elements, independently of the reaction of the sensors, during entering of the wafer.