Abstract:
An improved process for manufacturing semiconductor devices (10). The device, which could be a semiconductor wafer, an individual chip, or a device that has integrated within it semiconductor devices, such as a compact disk drive, is placed or held upside down with its working surface (12) open. The device (10) is struck, causing particulates (18) attached to the working surface (12) to fall free of the device. Alternately, the device could be sharply decelerated to apply the shock. Additionally, the device could be held substantially vertical and rotated to use centrifugal force to separate the particulates away from the device.
Abstract:
A differential to single-ended converter includes a voltage-to-current converter that converts differential voltage input signals to differential current signals which differ by a difference current. A current mirror mirrors the first differential current signal. A substantially constant DC voltage level is established. A resistor conducts any difference in current between the mirrored current and the second differential current signal and translates this difference current to a single-ended voltage output signal. An input buffer provides the differential voltage input signals to the voltage-to-current converters.
Abstract:
Dual gate dielectric layers are formed on a semiconductor substrate for MOS transistor fabrication. A first dielectric layer (30) is formed on a semiconductor substrate (10). A first plasma nitridation process is performed on said first dielectric layer. The first dielectric layer (30) is removed in regions of the substrate and a second dielectric layer (50) is formed in these regions. A second plasma nitridation process is performed on the first dielectric layer and the second dielectric layer. MOS transistors (160, 170) are then fabricated using the dielectric layers (30, 50).
Abstract:
Dual gate dielectric layers are formed on a semiconductor substrate for MOS transistor fabrication. A first dielectric layer (30) is formed on a semiconductor substrate (10). A first plasma nitridation process is performed on said first dielectric layer. The first dielectric layer (30) is removed in regions of the substrate and a second dielectric layer (50) is formed in these regions. A second plasma nitridation process is performed on the first dielectric layer and the second dielectric layer. MOS transistors (160, 170) are then fabricated using the dielectric layers (30, 50).
Abstract:
Techniques for a door system for sealing an opening between two chambers in a semiconductor processing system are described. A sealing member seals the opening when a door is in a closed position. To selectively open and close the opening, an actuator moves the door. A valve actuator switch provides a first or second pressure to the actuator depending on the pressure inside a first chamber. In one embodiment, a sensor monitors the pressure inside the first chamber.
Abstract:
A milling cutter with two faces of cutting end and two mirror symmetrical central bores for the mounting in a shell mill holder on either one of them. The aligned key grooves are formed on the bottom surface of each central bore. The inserts are located on the periphery of each cutting end.
Abstract:
A process for making a metal fuse link in a MOS or CMOS process which includes depositing a refractory metal or metal alloy over an already deposited multi-level oxide and patterning the deposited metal or metal alloy so that it has a fusing segment between and integral with expanded segments such that the length and cross sectional area of the fusing segment is sufficiently small so that the fusing current therethrough is less than 20 milliamperes. The fuse and surrounding circuitry is covered with a passivation layer and contacts formed in the passivation layer to the expanded segments.