Abstract: An overhead traveling vehicle configured to transport wafers includes a mobile drive unit configured to move along a predetermined route on one side of a ceiling and a hoist unit configured to move along the predetermined route according to a position of the mobile drive unit. The mobile drive unit and the hoist unit respectively include a first magnet and a second magnet so that the hoist unit may be hung on the ceiling by the magnetic force generated between the magnets.

Abstract: A semiconductor electronic device structure includes an active area array disposed in a substrate, an isolation structure, a plurality of recessed gate structures, a plurality of word lines, and a plurality of bit lines. The active area array a plurality of active area columns and a plurality of active area rows, defining an array of active areas. The substrate has two recesses formed at the central region thereof. Each recessed gate structure is respectively disposed in the recess. A protruding structure is formed on the substrate in each recess. A STI structure of the isolation structure is arranged between each pair of adjacent active area rows. Word lines are disposed in the substrate, each electrically connecting the gate structures there-under. Bit lines are disposed above the active areas, forming a crossing pattern with the word lines.

Abstract: The present invention provides an overhead hoist transport system, which includes a rail, a stocker disposed under the rails, wherein the stocker can move along the direction of the rail, and a cleaning station, disposed on the rail to clean the stocker directly when the stocker is moving.

Abstract: A semiconductor electronic device structure includes an active area array disposed in a substrate, an isolation structure, a plurality of recessed gate structures, a plurality of word lines, and a plurality of bit lines. The active area array a plurality of active area columns and a plurality of active area rows, defining an array of active areas. The substrate has two recesses formed at the central region thereof. Each recessed gate structure is respectively disposed in the recess. A protruding structure is formed on the substrate in each recess. A STI structure of the isolation structure is arranged between each pair of adjacent active area rows. Word lines are disposed in the substrate, each electrically connecting the gate structures there-under. Bit lines are disposed above the active areas, forming a crossing pattern with the word lines.

Abstract: The present invention provides an overhead hoist transport system, which includes a rail, a stocker disposed under the rails, wherein the stocker can move along the direction of the rail, and a cleaning station, disposed on the rail to clean the stocker directly when the stocker is moving.

Abstract: The instant disclosure provides a method for operating an automatic handling system applied to many wafer processing apparatuses. When a OHT (Overhead Hoist Transport) vehicle is moved to one of the wafer processing apparatuses, the OHT vehicle can ask a OHT control module whether a wafer carrier device can be unloaded from the OHT vehicle onto the wafer processing apparatus. There are two judgment methods as follows: (1) If there is another wafer carrier device already disposed on the wafer processing apparatus, the OHT control module will inform the OHT vehicle that the wafer carrier device cannot be unloaded from the OHT vehicle onto the wafer processing apparatus; (2) If there is no any wafer carrier device disposed on the wafer processing apparatus, the OHT control module will inform the OHT vehicle that the wafer carrier device can be unloaded from the OHT vehicle onto the wafer processing apparatus.

Abstract: An overhead wafer transport system includes an over head transportation (OHT) rail and at least one shuttle. The OHT rail includes a main track and two lateral tracks, each having a hollow transverse cross-section, each lateral track being in corresponding connection with the main track through the two sides thereof, constituting an approximate tri-directional branch form. The shuttle has a track-interface assembly and a docking unit, the track-interface assembly being adapted to travel along the OHT rail. The track-interface assembly being arranged at the junction of the two lateral tracks and the main track, wherein the track-interface assembly is adapted to selectively travel along at least one of the main track and the lateral tracks. Therefore, the overhead wafer transport system can be applied to a clean room with higher transfer efficiency and clean room space utilization.

Abstract: A wafer transfer system includes a bidirectional wafer carrying pod, an over-head transport (OHT) rail, an OHT, two platforms, and two loading ports respectively connected to the two platforms. The bidirectional wafer carrying pod has a loading housing and two doors respectively and detachably installed on the two opposite sides of the loading housing. The OHT rail has a single rail section and a double rail section. The two ends of the double rail section are connected to the single rail section. The platforms are respectively disposed beside the double rail section. The loading ports are disposed under the double rail section. Through the OHT, The bidirectional wafer carrying pod can selectively be transferred to one rail of the double rail section and disposed on the loading port of the tool corresponding to the one rail of the double rail section.

Abstract: The instant disclosure provides a method for operating an automatic handling system applied to many wafer processing apparatuses. When a OHT vehicle is moved to one of the wafer processing apparatuses, the OHT vehicle can ask a OHT control module whether a wafer carrier device can be unloaded from the OHT vehicle onto the wafer processing apparatus. There are two judgment methods as follows: (1) If there is another wafer carrier device already disposed on the wafer processing apparatus, the OHT control module will inform the OHT vehicle that the wafer carrier device cannot be unloaded from the OHT vehicle onto the wafer processing apparatus; (2) If there is no any wafer carrier device disposed on the wafer processing apparatus, the OHT control module will inform the OHT vehicle that the wafer carrier device can be unloaded from the OHT vehicle onto the wafer processing apparatus.

Abstract: An overhead wafer transport system includes an over head transportation (OHT) rail and at least one shuttle. The OHT rail includes a main track and two lateral tracks, each having a hollow transverse cross-section, each lateral track being in corresponding connection with the main track through the two sides thereof, constituting an approximate tri-directional branch form. The shuttle has a track-interface assembly and a docking unit, the track-interface assembly being adapted to travel along the OHT rail. The track-interface assembly being arranged at the junction of the two lateral tracks and the main track, wherein the track-interface assembly is adapted to selectively travel along at least one of the main track and the lateral tracks. Therefore, the overhead wafer transport system can be applied to a clean room with higher transfer efficiency and clean room space utilization.

Abstract: A wafer transfer system includes a bidirectional wafer carrying pod, an over-head transport (OHT) rail, an OHT, two platforms, and two loading ports respectively connected to the two platforms. The bidirectional wafer carrying pod has a loading housing and two doors respectively and detachably installed on the two opposite sides of the loading housing. The OHT rail has a single rail section and a double rail section. The two ends of the double rail section are connected to the single rail section. The platforms are respectively disposed beside the double rail section. The loading ports are disposed under the double rail section. Through the OHT, The bidirectional wafer carrying pod can selectively be transferred to one rail of the double rail section and disposed on the loading port of the tool corresponding to the one rail of the double rail section.

Abstract: An automatic handling system applied to many wafer processing devices includes a handling rail unit and a transport vehicle unit. The handling rail unit includes at least one handling rail. The transport vehicle unit includes a plurality of OHT vehicles disposed under the handling rail and mated with the handling rail, wherein each OHT vehicle includes at least one sliding portion slidably disposed on the handling rail, at least one rotatable portion for clamping at least one wafer carrier device, and at least one suspended portion connected between the sliding portion and the rotatable portion, wherein the wafer carrier device has a wafer pick-and-place opening, and the wafer carrier device is rotated by the rotatable portion of the OHT vehicle according to the position of the wafer processing device for adjusting the direction of the wafer pick-and-place opening to face the wafer processing device.

Abstract: A rotary transport system has a main track with transport(s) or shuttle(s) moving along the main track and an auxiliary storage unit. The auxiliary storage unit has a plurality of storing positions, and the storing positions are rotating around the main track. Therefore, the object, such as a FOUP (Front Opening Unified Pod) can be loaded on or unloaded from the storing positions.

Abstract: An automatic transport system includes: an overhead rail module having a plurality of transport rail sets, the transport rail sets each defining a bay; a plurality of overhead hoist transport vehicles movably disposed in the overhead rail module; and a control module electrically connected to the overhead hoist transport vehicles, the control module being used to control the number of the overhead hoist transport vehicles in the bays. Via this arrangement, the control module keeps some overhead hoist transport vehicles staying in each bay, thereby preventing one of the bays from having no overhead hoist transport vehicle to immediately use. This invention further provides a control method of the automatic transport system.