Abstract:
A method of fabricating a non-volatile memory is provided. The method includes providing a substrate. Next, a tunneling oxide layer is formed on the substrate and a surface nitridation process is performed to nitridize the upper surface of the tunneling oxide layer. A plurality of nanocrystals is formed on the nitridized surface of the tunneling oxide layer. Next, the surfaces of the nanocrystals are nitridized. An oxide layer and a conductive layer are formed in sequence over the tunneling oxide layer to cover the nanocrystals. Due to the formation of high-density nanocrystals as a charge storage medium, the properties of the memory are enhanced.
Abstract:
This invention provides methods for reducing the intensity of reflected rays encountered during the process of photolithography. By reducing the intensity of reflected ray, the pattern distortions associated with the interference from secondary rays can be minimized. In addition, this method for reducing the intensity of reflected ray can also eliminate the footing effect of other known methods in which the dielectric ARC layer is first deposited on the underlying layer, followed by the subsequent photolithography process of coating exposing, and developing.
Abstract:
A method for forming oxynitride layer. The method includes (a) providing a substrate and removing the native oxide layer; (b) forming a nitride layer on the substrate; (c) oxidizing the nitride layer to form an oxynitride layer; and (d) subjecting the oxynitride layer to in-situ annealing. This method inhibits the penetration of boron into the substrate thereby improving the performance of semiconductor devices and production yield.
Abstract:
A method of forming an arsenic doped oxide layer in a process chamber is disclosed. The method comprises the steps of: setting the process chamber to a temperature of approximately 400-500° C. and a pressure of about 40-250 torr; flowing tetraethylorthosilicate (TEOS) into the process chamber; flowing triethylarsenate (TEAS or TEASAT) into the process chamber; and flowing ozone into the process chamber.
Abstract:
The present invention is a field-measuring system and method supported by a PDA (Personal Digital Assistant) at the control processing field, comprising: a plurality of energy converters for sensing the processing variables at the control processing field and outputting the electric signals in response to the processing variables; a processing controller with a multi-port input interface for receiving the electric signals, processing the electric signals based on a single-chip microprocessor, and outputting the digital data corresponding to the processing variables; a personal digital assistant (PDA) for executing a driver to receive the digital data, and displaying the messages related to the processing variables; and a communication interface circuit for transmitting the data to a PDA. The combination of a PDA with a communication protocol technique facilitates the establishment of a real-time system for data retrieval and monitoring at a control processing field. In addition, the present invention improves the safety of the pipeline operation, and monitors the abnormalities of the pipelines around the clock by operating the pipe switch device at the field.
Abstract:
A method of fabricating a semiconductor device is provided including the steps of:(a) forming one or more protrusions on a semiconductor surface,(b) forming a first O.sub.x /TEOS film on top and side surfaces of the protrusions and surface area portions of the semiconductor surface separating the protrusions from each other, if any, and(c) forming a second O.sub.3 /TEOS film on, and covering, the first film.Illustratively, the protrusions have nitride regions at their peaks. The first film can be a low pressure (e.g., 30-70 torr) O.sub.3 /TEOS film or a plasma enhanced chemical vapor deposition (PECVD) O.sub.2 /TEOS film. The second film is a high pressure (e.g., 200-600 torr) O.sub.3 /TEOS film.The high pressure O.sub.3 /TEOS film avoids all of the disadvantages of the prior art. The low pressure O.sub.3 /TEOS film or PECVD O.sub.2 /TEOS film covers the nitride region of the protrusion so that the high pressure O.sub.3 /TEOS film will continuously cover the entire structure with a uniform thickness.
Abstract:
A method of fabricating an integrated circuit device with a substantially uniform inter-layer dielectric layer. The method includes steps of providing a partially completed semiconductor wafer (400) where the partially completed semiconductor device has a first polysilicon layer (401) thereon. The method includes depositing a dielectric layer (405) overlying the polysilicon layer and portions of the partially completed semiconductor device at a pressure of about 1 atmosphere. A step of forming a second polysilicon layer overlying portions of the dielectric layer is also included. The dielectric layer depositing step includes combining an organic silane and an ozone at a concentration of 200 g/m.sup.3 and less.
Abstract translation:一种制造具有基本均匀的层间电介质层的集成电路器件的方法。 该方法包括提供部分完成的半导体晶片(400)的步骤,其中部分完成的半导体器件在其上具有第一多晶硅层(401)。 该方法包括在约1个大气压下沉积覆盖多晶硅层的电介质层(405)和部分完成的半导体器件的部分。 还包括形成覆盖介电层部分的第二多晶硅层的步骤。 电介质层沉积步骤包括以200g / m 3以下的浓度组合有机硅烷和臭氧。