Mpi Corporation

Lin-Lin Chih

Chien-Hung Chen

Guan-Jhih Liou

Stojan Kanev

Yu-Hsun Hsu

Yung-Chin Liu

Cheng-Rong Yang

A wafer inspection method, wherein a motorized chuck stage is controlled by a control rod to be displaced between an upper position and a lower position along Z-axis direction, to change a relative position of a wafer on the motorized chuck stage relative to a probe. The control rod is movable between an upper and an lower limit positions. The wafer inspection method includes: determining a position of the control rod based on a measurement signal; determining a first moving direction and a moving distance of the control rod based on a change of the measurement signal; generating a control signal based on the moving distance of the control rod; controlling the motorized chuck stage to be displaced along a second moving direction opposite to the first moving direction; and controlling an objective lens module to keep focusing on the wafer when the motorized chuck stage is on the move.

Wafer inspection method and wafer probing system

A control method of a touch display apparatus applicable to a probe station is provided. The probe station includes a movable element. The movable element is a chuck stage, a camera stage, a probe platen, or a positioner. The control method of a touch display apparatus includes displaying a first window and a second window on a touch display apparatus; displaying an operation interface on the first window and displaying a real-time image on the second window; and detecting a touch instruction generated on the operation interface, where the movable element moves according to the touch instruction.

Control method of touch display apparatus

A display method of a display apparatus is provided. The method includes: displaying, on a touch display apparatus, a first window and a second window that overlap with each other, where the first window is smaller than the second window; displaying a first image on the first window, and displaying a second image on the second window, where the second image is an image captured by the camera module in real time; displaying the first image on the second window and displaying the second image on the first window according to the first touch instruction; and displaying the first image on the first window and displaying the second image on the second window according to the second touch instruction.

Display method of display apparatus

Display screen or portion thereof with graphical user interface

A wafer inspection method was provided. A motorized chuck stage is controlled by a control rod to be displaced between an upper position and a lower position of an adjustment range along a Z-axis direction, to change a relative position of a wafer on the motorized chuck stage relative to a probe. The control rod is movable between an upper limit position and a lower limit position in a displacement range. The wafer inspection method includes: determining a position of the control rod in the displacement range based on a measurement signal; determining a moving direction and a moving distance of the control rod based on a change of the measurement signal; generating a control signal based on the moving distance of the control rod; and controlling, based on the control signal, the motorized chuck stage and a camera stage to be displaced the same distance.

An aligning method for use in semiconductor inspection apparatus is provided. The semiconductor inspection apparatus includes a stage and a touch-control screen. The aligning method includes defining a reference direction; displaying an image of a device under test supported by the stage on the touch-control screen; detecting a first touch point and a second touch point occurred on the touch-control screen; defining a straight line according to the first touch point and the second touch point; calculating an included angle defined by the straight and the reference direction; and rotating the stage according to the included angle.

Aligning method for use in semiconductor inspection apparatus

A wafer cassette includes a case, a plurality of wafer trays, and a plurality of transmission mechanisms. The wafer trays are disposed in the case. Each of the wafer trays includes a central opening, a first groove, and a second groove. The diameter of the second groove is greater than that of the first groove. A bottom surface of the second groove is higher than that of the first groove. The first and second grooves surround the central opening. Each of the transmission mechanisms is connected to the corresponding wafer tray to move the wafer tray between a pick-up position and a received position. Since the wafer tray has grooves with different diameters, the wafer tray is capable of receiving wafers with different sizes.

Growing community of inventors

Hsinchu County, Taiwan

Lin-Lin Chih