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Class 438/645 - Having planarization step


Subclass of Class 438 - Semiconductor device manufacturing: process
Definition: Processes wherein a material layer is leveled into a single
No. of patents: 296
Last issue date: 01/31/2012


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NumberTitleIssue Date
8105942CMP-first damascene process scheme
An improved metal interconnect is formed with reduced metal voids and dendrites. An embodiment includes forming a mask layer on a dielectric layer, forming openings in the mask and dielectric layers, depositing a planarization layer over the mask layer and filling t...
01/31/2012
8030209Enhancing structural integrity of low-k dielectrics in metallization systems of semiconductor devices by using a crack suppressing material layer
During the formation of metallization layers of sophisticated semiconductor devices, the damaging of sensitive dielectric materials, such as ULK materials, may be significantly reduced during a CMP process by applying a compressive stress level. This may be accompli...
10/04/2011
7968456Method of forming an embedded barrier layer for protection from chemical mechanical polishing process
A semiconductor interconnect structure and method providing an embedded barrier layer to prevent damage to the dielectric material during or after Chemical Mechanical Polishing. The method employs a combination of an embedded film, etchback, using either selective C...
06/28/2011
7928007Method for reducing dielectric overetch when making contact to conductive features
In a first preferred embodiment of the present invention, conductive features are formed on a first dielectric etch stop layer, and a second dielectric material is deposited over and between the conductive features. A via etch to the conductive features which is sel...
04/19/2011
7790609Method of forming metal line in semiconductor device
A method of forming a metal line in a semiconductor device is disclosed. The method of forming a metal line in a semiconductor device includes forming an interlayer insulating film over a substrate. A via hole may be formed by selectively patterning the interlayer i...
09/07/2010
7655563Method for preventing the formation of dentrites in a semiconductor
The invention relates to a semiconductor circuit arrangement having a semiconductor substrate, a first doping region, a second doping region, a connection doping region, an insulation layer and an electrically conductive structure which is to be planarized, it being...
02/02/2010
7528066Structure and method for metal integration
An interconnect structure including a gouging feature at the bottom of one of the via openings and a method of forming the same are provided. In accordance with the present invention, the method of forming the interconnect structure does not disrupt the coverage of ...
05/05/2009
7416985Semiconductor device having a multilayer interconnection structure and fabrication method thereof
A multilayer interconnection structure includes a first interlayer insulation film, a second interlayer insulation film formed over the first interlayer insulation film, an interconnection trench formed in the first interlayer insulation film and having a sidewall s...
08/26/2008
7416930Method for producing an oxide confined semiconductor laser
A method for producing an oxide confined semiconductor laser uses a dual platform to synchronously produce a light emitting active area and a wire bonding area on a semiconductor material and use a metal protective material, an electrically conductive metal material...
08/26/2008
7407879Chemical planarization performance for copper/low-k interconnect structures
An electrical interconnect structure on a substrate, which includes: a first low-k dielectric layer; a spin-on low k CMP protective layer that is covalently bonded to the first low-k dielectric layer; and a CVD deposited hardmask/CMP polish stop layer is provided. E...
08/05/2008
7384865Semiconductor device with a metal line and method of forming the same
A method of forming a metal line in a semiconductor device includes: forming a lower insulation layer for insulation from the lower substrate; forming a first metal line at a certain region on the lower insulation layer; sequentially forming a first oxide layer, an ...
06/10/2008
7381638Fabrication technique using sputter etch and vacuum transfer
First material (106) is situated on the surface of a substructure (100 and 102) and in an opening (104), such as a Wench, that extends partway through the substructure. Second material (108) is situated on the first material in the...
06/03/2008
7375023Method and apparatus for chemical mechanical polishing of semiconductor substrates
Methods and apparatus for processing substrates to improve polishing uniformity, improve planarization, remove residual material and minimize defect formation are provided. In one aspect, a method is provided for processing a substrate having a conductive material a...
05/20/2008
7364997Methods of forming integrated circuitry and methods of forming local interconnects
In one implementation, field oxide is grown within bulk semiconductive material in a first circuitry area and not over immediately adjacent bulk semiconductive material in a second circuitry area. The field oxide is etched from the first circuitry area. After the et...
04/29/2008
7338907Selective etching processes of silicon nitride and indium oxide thin films for FeRAM device applications
A dry etch process is described for selectively etching silicon nitride from conductive oxide material for use in a semiconductor fabrication process. Adding an oxidant in the etch gas mixture could increase the etch rate for the silicon nitride while reducing the e...
03/04/2008
7301190Structures and methods to enhance copper metallization
Disclosed structures and methods inhibit atomic migration and related capacitive-resistive effects between a metallization layer and an insulator layer in a semiconductor structure. One exemplary structure includes an inhibiting layer between an insulator and a meta...
11/27/2007
7291525System and method for manufacturing thin film resistors using a trench and chemical mechanical polishing
A system and method is disclosed for manufacturing thin film resistors using a trench and chemical mechanical polishing. A trench is etched in a layer of dielectric material and a thin film resistor layer is deposited so that the thin film resistor layer lines the t...
11/06/2007
7285196Methods and apparatus for making integrated-circuit wiring from copper, silver, gold, and other metals
In recent years, copper wiring has emerged as a promising substitute for the aluminum wiring in integrated circuits, because copper offers lower electrical resistance and better reliability at smaller dimensions than aluminum. However, use of copper typically requir...
10/23/2007
7276788Hydrophobic foamed insulators for high density circuits
A conductive system and a method of forming an insulator for use in the conductive system is disclosed. The conductive system comprises a foamed polymer layer on a substrate. The foamed polymer layer has a surface that is hydrophobic, and a plurality of conductive s...
10/02/2007
7268413Bipolar transistors with low-resistance emitter contacts
Many integrated circuits include a type of transistor known as a bipolar junction transistor, which has an emitter contact formed of polysilicon. Unfortunately, polysilicon has a relatively high electrical resistance that poses an obstacle to improving switching spe...
09/11/2007
7262130Methods for making integrated-circuit wiring from copper, silver, gold, and other metals
Integrated circuits, the key components in thousands of electronic and computer products, include interconnected networks of electrical components. The components are typically wired, or interconnected, together with aluminum wires. In recent years, researchers have...
08/28/2007
7262505Selective electroless-plated copper metallization
Structures and methods are provided which include a selective electroless copper metallization. The present invention includes a novel methodology for forming copper vias on a substrate, including depositing a thin film seed layer of Palladium (Pd) or Copper (Cu) on...
08/28/2007
7255772High pressure processing chamber for semiconductor substrate
A high pressure chamber comprises a chamber housing, a platen, and a mechanical drive mechanism. The chamber housing comprises a first sealing surface. The platen comprises a region for holding the semiconductor substrate and a second sealing surface. The mechanical...
08/14/2007
7253521Methods for making integrated-circuit wiring from copper, silver, gold, and other metals
Integrated circuits include networks of electrical components that are typically wired, or interconnected, together with aluminum wires. In recent years, researchers have begun using copper in combination with diffusion barriers, rather than aluminum, to form the wi...
08/07/2007
7238607Method to minimize formation of recess at surface planarized by chemical mechanical planarization
When chemical mechanical planarization (CMP) is used to planarize a surface coexposing patterned features and dielectric fill, where patterned features and the fill are formed of materials having very different CMP removal rates or characteristics, the planarized su...
07/03/2007
7238606Semiconductor devices and method for fabricating the same
Methods for fabricating a copper interconnect of a semiconductor device are disclosed. An example method for fabricating a copper interconnect of a semiconductor device deposits a first insulating layer on a substrate having at least one predetermined structure, for...
07/03/2007
7235882Semiconductor device having a wiring layer of damascene structure and method for manufacturing the same
In a semiconductor device, a wiring pattern groove is formed in a surface portion of a silicon oxide film provided above a semiconductor substrate. A wiring layer is buried into the wiring pattern groove with a barrier metal film interposed therebetween. The barrier...
06/26/2007
7232757Semiconductor integrated circuit device and fabrication method for semiconductor integrated circuit device
Cu interconnections embedded in an interconnection slot of a silicon oxide film are formed by polishing using CMP to improve the insulation breakdown resistance of a copper interconnection formed using the Damascene method, and after a post-CMP cleaning step, the su...
06/19/2007
7223685Damascene fabrication with electrochemical layer removal
The present application discloses process comprising providing a wafer, the wafer comprising an inter-layer dielectric (ILD) having a feature therein, an under-layer deposited on the ILD, and a barrier layer deposited on the under-layer, and a conductive layer depos...
05/29/2007
7220665H plasma treatment
Electronic devices are constructed by a method that includes forming a first conductive layer in an opening in a multilayer dielectric structure supported by a substrate, forming a core conductive layer on the first conductive layer, subjecting the core conductive l...
05/22/2007
7214602Method of forming a conductive structure
A method of forming a conductive structure is disclosed. The method includes forming an interconnect in a substrate, and forming a layer of iridium on the interconnect. The layer of iridium has a thickness of less than six hundred angstroms. The method further inclu...
05/08/2007
7201636Chemical mechanical polishing a substrate having a filler layer and a stop layer
A substrate is chemical mechanical polished with a high-selectivity slurry until the stop layer is at least partially exposed, and then the substrate is polished with a low-selectivity slurry until the stop layer is completely exposed. ...
04/10/2007
7199043Method of forming copper wiring in semiconductor device
Disclosed in a method of forming a copper wiring in a semiconductor device. A copper layer buries a damascene pattern in which an interlayer insulating film of a low dielectric constant. The copper layer is polished by means of a chemical mechanical polishing proces...
04/03/2007
7189638Method for manufacturing metal structure using trench
A method for manufacturing a metal structure using a trench includes etching a semiconductor substrate to form a trench, depositing a seed layer over the semiconductor substrate including in the trench, stacking an insulating layer over the seed layer, removing a po...
03/13/2007
7183193Integrated device technology using a buried power buss for major device and circuit advantages
A method for providing an improved integrated circuit device is disclosed. The method comprises the steps of providing active and passive areas in the substrate, providing a plurality of slots in the substrate after providing the active and passive areas, and oxidiz...
02/27/2007
7172962Method of manufacturing a semiconductor device
On a substrate are sequentially formed a first interconnection 203, a diffusion barrier film 205 and a second insulating film 207, and on the upper surface of the second insulating film 207 is then formed a sacrificial film 213. Ne...
02/06/2007
7172963Manufacturing method of semiconductor integrated circuit device that includes chemically and mechanically polishing two conductive layers using two polishing pads that have different properties
In the forming process of buried wirings by filling wiring trenches formed in an insulator with a conductive film mainly made of Cu, the buried wirings are formed to have a uniform-height regardless of the width and density of the wiring trenches. When polishing a b...
02/06/2007
7163438Zone polishing using variable slurry solid content
A slurry dispensing apparatus for use with a chemical mechanical polishing tool for planarizing semiconductor substrates having irregular topology. The apparatus includes a slurry dispensing manifold with a first end suspended over a polishing pad, and a second end ...
01/16/2007
7157734Semiconductor bond pad structures and methods of manufacturing thereof
Described is a semiconductor device having improved semiconductor bond pad reliability and methods of manufacturing thereof. The semiconductor device includes a layer formed over an integrated circuit on a semiconductor substrate. The first layer includes a conducti...
01/02/2007
7144518CMP for corrosion-free CoFe elements for magnetic heads
A method of manufacture of magnetic heads which include CoFe elements using CMP is presented. The method includes providing a slurry of Al2O3, adjusting the concentration of H2O2 in said slurry to within a range of 6–12%...
12/05/2006
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