摘要:
A method and apparatus for baking a film onto a substrate. A film, such as a layer of photoresist, is disposed on a first surface of a substrate while a second surface is exposed to a liquid bath. The liquid bath is maintained at a pre-selected temperature. Exposure of the substrate to the liquid bath allows the film on the opposite surface to bake. The liquid bath is then re-circulated to maintain a constant and uniform temperature gradient across the substrate.
摘要:
Disclosed are methods of forming resistors and diodes from semiconductive material, and static random access memory (SRAM) cells incorporating resistors, and to integrated circuitry incorporating resistors and diodes. A node to which electrical connection is to be made is provided. An electrically insulative layer is provided outwardly of the node. An opening is provided in the electrically insulative layer over the node. The opening is filed with semiconductive material which depending on configuration serves as one or both of a vertically elongated diode and resistor.
摘要:
Disclosed is a process for analyzing the surface characteristics of opaque materials. The method comprises in one embodiment the use of a UV reflectometer to build a calibration matrix of data from a set of control samples and correlating a desired surface characteristic such as roughness or surface area to the set of reflectances of the control samples. The UV reflectometer is then used to measure the reflectances of a test sample of unknown surface characteristics. Reflectances are taken at a variety of angles of reflection for a variety of wavelengths, preferably between about 250 nanometers to about 400 nanometers. These reflectances are then compared against the reflectances of the calibration matrix in order to correlate the closest data in the calibration matrix. By so doing, a variety of information is thereby concluded, due to the broad spectrum of wavelengths and angles of reflection used. This includes information pertaining to the roughness and surface area, as well as other surface characteristics such as grain size, grain density, grain shape, and boundary size between the grains. Surface characteristic evaluation can be conducted in-process in a manner which is non-destructive to the test sample. The method is particularly useful for determining the capacitance of highly granular polysilicon test samples used in the construction of capacitator plates in integrated circuit technology, and can be used to determine the existence of flat smooth surfaces, and the presence of prismatic and hemispherical irregularities on flat smooth surfaces.
摘要:
An improved method for alloying a semiconductor substrate upon which wordlines enclosed in spacers have been formed, with the substrate exposed between the wordlines. A thin sealing layer is then deposited over the substrate and the wordlines, the sealing layer helping to maintain the alloy in said substrate. The alloying material employed of the substrate is optionally monatomic hydrogen. Alloying the substrate with monatomic hydrogen may also be used after deposition of a metal layer, or at other process steps as desired.
摘要:
Disclosed are methods of forming resistors and diodes from semiconductive material, and static random access memory (SRAM) cells incorporating resistors, and to integrated circuitry incorporating resistors and diodes. A node to which electrical connection is to be made is provided. An electrically insulative layer is provided outwardly of the node. An opening is provided in the electrically insulative layer over the node. The opening is filled with semiconductive material which depending on configuration serves as one or both of a vertically elongated diode and resistor.
摘要:
In but one implementation in the fabrication of a phase shift mask, both process alignment in the formation of a phase shift alignment region and degree of phase shift of the phase shift alignment region is determined at least in part by using aerial image measurement equipment. In one implementation, aerial image measurement equipment is used to both determine phase shift of a phase shift alignment region at least in part by capturing a series of aerial images as a function of focus and to determine process alignment in the formation of the phase shift alignment region at least in part by measuring distance between spaced low intensity locations defined by an edge of the phase shift alignment region and an adjacent alignment feature edge. In one implementation, process alignment in the formation of a phase shift alignment region is determined at least in part by using aerial image measurement equipment to determine photoresist patterning alignment prior to etching material to form said phase shift alignment region. In one implementation, aerial image measurement equipment is used to determine photoresist patterning alignment for formation of a phase shift alignment region at least in part by measuring distance between spaced intensity change locations defined by an alignment feature edge beneath the photoresist and an edge of the photoresist.
摘要:
Disclosed are methods of forming resistors and diodes from semiconductive material, and static random access memory (SRAM) cells incorporating resistors, and to integrated circuitry incorporating resistors and diodes. A node to which electrical connection is to be made is provided. An electrically insulative layer is provided outwardly of the node. An opening is provided in the electrically insulative layer over the node. The opening is filled with semiconductive material which depending on configuration serves as one or both of a vertically elongated diode and resistor.
摘要:
Disclosed are methods of forming resistors and diodes from semiconductive material, and static random access memory (SRAM) cells incorporating resistors, and to integrated circuitry incorporating resistors and diodes. A node to which electrical connection is to be made is provided. An electrically insulative layer is provided outwardly of the node. An opening is provided in the electrically insulative layer over the node. The opening is filled with semiconductive material which depending on configuration serves as one or both of a vertically elongated diode and resistor.
摘要:
In one aspect, the invention includes a semiconductor processing method, comprising: a) providing a silicon nitride material having a surface; b) forming a barrier layer over the surface of the material, the barrier layer comprising silicon and nitrogen; and c) forming a photoresist over and against the barrier layer. In another aspect, the invention includes a semiconductor processing method, comprising: a) providing a silicon nitride material having a surface; b) forming a barrier layer over the surface of the material, the barrier layer comprising silicon and nitrogen; c) forming a photoresist over and against the barrier layer; d) exposing the photoresist to a patterned beam of light to render at least one portion of the photoresist more soluble in a solvent than an other portion, the barrier layer being an antireflective surface that absorbs light passing through the photoresist; and e) exposing the photoresist to the solvent to remove the at least one portion while leaving the other portion over the barrier layer. In yet another aspect, the invention includes a semiconductor wafer assembly, comprising: a) a silicon nitride material, the material having a surface; b) a barrier layer over the surface of the material, the barrier layer comprising silicon and nitrogen; and c) a photoresist over and against the barrier layer.
摘要:
The invention comprises forming of phase shifting reticles. In but one aspect, a method of forming a phase shifting reticle includes providing a substrate comprising light restricting material over light transmissive material. A photosensitive resist layer is deposited over the light restricting material. A pattern of openings is formed through the resist layer and into the light restricting material. Depressions are etched into the light transmissive material through the openings while at least some of the resist layer remains over the light restricting material. After this etching, exposed light transmissive material is etched to form phase shift areas therein. In but one aspect, a method of forming a phase shifting reticle comprises providing a substrate comprising an antireflective material formed over a reflective light restricting material formed over a light transmissive material. A photosensitive resist layer is deposited over the antireflective material. A pattern of openings is formed through the resist layer, through the antireflective material and through the reflective light restricting material to form a mask pattern having light transmissive areas and light restricting areas over the substrate. All of the antireflective coating material over the light restricting areas is masked within the mask pattern while etching light transmissive material within all light transmissive areas within the mask pattern. Some of the light transmissive areas are formed to comprise phase shift areas.