U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 438/98 - Contact formation (i.e., metallization)


Subclass of Class 438 - Semiconductor device manufacturing: process
Definition: Process for making a semiconductor device responsive to
No. of patents: 585
Last issue date: 05/22/2012


1                      
NumberTitleIssue Date
8183084Methods of manufacturing solid state image pickup devices
A method of manufacturing a solid state image pickup device having a plurality of pixels each including a photoelectric conversion region for converting light into a signal charge, and a plurality of wiring layers including first and second wiring layers. The method...
05/22/2012
8148194Solar cell, manufacturing method thereof and electrode material
There is presented a solar cell comprising a semiconductor substrate of one conductivity-type, a layer of the opposite conductivity-type provided on a surface side of the semiconductor substrate, a surface electrode formed thereon, and a backside electrode formed on...
04/03/2012
8148195Process for producing a contact area of an electronic component
A process for forming at least one local contact area of a substrate of an electrical component for contacting the contact area with a connector, in which the substrate, on the contact side, is provided with a sintered porous metal layer. To make available a mechani...
04/03/2012
8148196Semiconductor light emitting device
This invention discloses a light emitting semiconductor device including a light-emitting structure and an external optical element. The optical element couples to the light-emitting structure circumferentially. In addition, the refractive index of the external opti...
04/03/2012
8143090Method of fabricating photo sensor
A method of fabricating a photo sensor includes the following steps. First, a substrate is provided, having a conductive layer, a buffer dielectric layer, a patterned semiconductor layer, a dielectric layer, and a planarization layer disposed thereon from bottom to ...
03/27/2012
8129216Method of manufacturing solar cell with doping patterns and contacts
A method of manufacturing a solar cell. The method includes the steps of providing a substrate, applying a first dopant to a first surface, applying a second dopant to a second surface, covering the doped first surface with a hard mask, applying a third dopant to th...
03/06/2012
8119444Method for manufacturing the image sensor
An image sensor and a method of manufacturing an image sensor. An image sensor may include a semiconductor substrate which may include a readout circuitry. An image sensor may include an interlayer dielectric over a semiconductor substrate, and/or a first metal patt...
02/21/2012
8119443Method of manufacturing image sensor having ions implanted into photodiode layer to control contact hole shape
Provided is a method in which a photodiode layer is formed on a metal interconnection layer, and a hard mask layer is formed on the photodiode layer. Then, a photoresist pattern is formed on the hard mask layer to define a contact hole region, and a first hole is fo...
02/21/2012
8110431Ion implanted selective emitter solar cells with in situ surface passivation
Solar cells and methods for their manufacture are disclosed. An example method may include providing a p-type doped silicon substrate and introducing n-type dopant to a first and second region of the front surface of the substrate by ion implantation so that the sec...
02/07/2012
8105869Method of manufacturing a silicon-based semiconductor device by essentially electrical means
Proposed is the method for forming selective emitters, field-induced emitters, back-surface field regions, and contacts to the functional regions of a solar cell by essentially electrical means and without conventional thermal diffusion and masking processes. The pr...
01/31/2012
8105868Method for making solar sub-cells from a solar cell
The invention pertains to a method for making a solar cell module comprising solar cells connected in series, comprising the steps of: a) making in a system composed of a substrate-overlaid by a first electrode layer, itself overlaid by an active layer, a first, int...
01/31/2012
8093097Layer sequence and method of manufacturing a layer sequence
A layer sequence (400), comprising an aluminum layer (300), a nickel layer (301), and a nickel layer protection layer (302; 701). The aluminum layer (300) is formable on a substrate (200), the nickel layer (301) is fo...
01/10/2012
8084293Continuously optimized solar cell metallization design through feed-forward process
An improved, lower cost method of processing substrates, such as to create solar cells, is disclosed. The doped regions are created on the substrate, using a mask or without the use of lithography or masks. After the implantation is complete, visual recognition is u...
12/27/2011
8053272Semiconductor device fabrication method
A method of fabricating a semiconductor device, comprises steps of forming a common contact hole for a first conductivity-type region and a second conductivity-type region, implanting an impurity in at least one of the first conductivity-type region and the second c...
11/08/2011
8043886Methods for manufacturing a contact grid on a photovoltaic cell
Processes for fabricating a contact grid for a photovoltaic cell generally includes providing a photovoltaic cell having an antireflective coating disposed on a sun facing side, the photovoltaic cell comprising a silicon substrate having a p-n junction; soft stampin...
10/25/2011
8039293Method of manufacturing photoelectric conversion device
A method of manufacturing a photoelectric conversion device having a semiconductor substrate, comprises a first step of forming an insulating film on the semiconductor substrate, a second step of forming first holes in the insulating film, a third step of forming, i...
10/18/2011
8039292Holey electrode grids for photovoltaic cells with subwavelength and superwavelength feature sizes
A photovoltaic cell and a method of forming an electrode grid on a photovoltaic semiconductor substrate of a photovoltaic cell are disclosed. In one embodiment, the photovoltaic cell comprises a photovoltaic semiconductor substrate; a back electrode electrically con...
10/18/2011
8030122Method and apparatus for reduction of non-adaptive signals in photo-EMF sensors
A method and apparatus for a photoinduced electromotive force sensor. The sensor has an active substrate formed of a semi-insulating photoconductor with sufficient carrier trap density to form an effective charge grating and pairs of electrodes disposed on the activ...
10/04/2011
8003434Reduced dark current photodetector
A photo-detector comprising: a photo absorbing layer comprising an n-doped semiconductor exhibiting a valence band energy level; a barrier layer, a first side of the barrier layer adjacent a first side of the photo absorbing layer, the barrier layer exhibiting a val...
08/23/2011
8003433Process for fabricating a high-integration-density image sensor
The present application relates to the fabrication of an electronic component. The component comprises two, superposed integrated circuits: one of which is formed on the front side of a thinned first substrate, and the other of which is produced on the front side of...
08/23/2011
7998786Method of manufacturing a TFT array panel
Multi-layered wiring for a larger flat panel display is formed by depositing molybdenum on a substrate in presence of a precursor gas containing at least one oxygen, nitrogen and carbon to form a molybdenum layer. An aluminum layer is deposited on the molybdenum lay...
08/16/2011
7993957Phase change memory cell and manufacturing method thereof using minitrenches
A process forms a phase change memory cell using a resistive element and a memory region of a phase change material. The resistive element has a first thin portion having a first sublithographic dimension in a first direction; and the memory region has a second thin...
08/09/2011
7977148Method for manufacturing image sensor
A method for manufacturing an image sensor includes forming a photolithography key in a scribe lane of a first substrate over which circuitry is formed in an active region. A photodiode is formed on an active region of a second substrate. The second substrate is bon...
07/12/2011
7972894Method of producing a photovoltaic cell with a heterojunction on the rear face
A method of producing a photovoltaic cell. A passivation layer based on an intrinsic amorphous semiconductor is deposited on a back surface of a substrate based on a crystalline semiconductor. A first sacrificial mask including at least one through-opening on the pa...
07/05/2011
7960206Adjustment of masks by re-flow
As a step in performing a process on a structure, a hole pattern is provided in a thin layer of organic resin masking material formed over the structure to provide a process mask. A processing step is then performed through the openings in the mask, and after a proc...
06/14/2011
7951641Photovoltaic lead manufacture
An improved lead foil operation procedure for photovoltaic module manufacture is disclosed. The procedure includes lift, cut, and fold lead foil. ...
05/31/2011
7947528Solid-state image pickup device, electronic apparatus using such solid-state image pickup device and method of manufacturing solid-state image pickup device
A back-illuminated type solid-state image pickup device (1041) includes read circuits (Tr1, Tr2) formed on one surface of a semiconductor substrate (1042) to read a signal from a photo-electric conversion element (PD) formed on the semico...
05/24/2011
7943417Method for metallization of photovoltaic cells with multiple annealing operations
Method for metallization of at least one photovoltaic cell comprising a substrate based on a semiconductor with a first type of conductivity, a layer doped with a second type of conductivity produced in the substrate and forming a front face of the substrate, an ant...
05/17/2011
7932127Method of making CMOS image sensor-hybrid silicide
Techniques for manufacturing a CMOS image sensor are provided. A semiconductor substrate is provided, and at least one isolation region can be formed between a periphery region of the substrate and a photo-sensing region of the substrate. A first well in the periphe...
04/26/2011
7923282Formation of stretchable photovoltaic devices and carriers
Formation of stretchable photovoltaic devices and carriers is described. In some examples, a formation method includes: forming a stretchable carrier including a stretchable part having a given length, the given length being operable to change in response to a force...
04/12/2011
7906366Printing mask and solar cell
A printing mask includes a mask frame and a mesh extended on the mask frame, in which a mask portion is formed by filling the mesh with resin to leave a pattern forming portion in a region corresponding to an electrode pattern to be formed on a printing object. The ...
03/15/2011
7901976Method of forming borderless contacts
A method is provided for forming a borderless contact to a local interconnect (LI) line on a substrate. Generally, the method includes steps of (i) depositing a nitride layer over a number of LI lines on the substrate, to substantially cover the LI lines; (ii) etchi...
03/08/2011
7897428Three-dimensional integrated circuits and techniques for fabrication thereof
Integrated circuits having complementary metal-oxide semiconductor (CMOS) and photonics circuitry and techniques for three-dimensional integration thereof are provided. In one aspect, a three-dimensional integrated circuit comprises a bottom device layer and a top d...
03/01/2011
7888168Solar cell contact formation process using a patterned etchant material
Embodiments of the invention contemplate the formation of a high efficiency solar cell using novel methods to form the active region(s) and the metal contact structure of a solar cell device. In one embodiment, the methods include the use of various etching and patt...
02/15/2011
7863083High temperature processing compatible metal gate electrode for pFETS and methods for fabrication
A method for fabricating a CMOS gate electrode by using Re, Rh, Pt, Ir or Ru metal and a CMOS structure that contains such gate electrodes are described. The work functions of these metals make them compatible with current pFET requirements. For instance, the metal ...
01/04/2011
7863084Contact fabrication of emitter wrap-through back contact silicon solar cells
Back contact solar cells including rear surface structures and methods for making same. The rear surface has small contact areas through at least one dielectric layer, including but not limited to a passivation layer, a nitride layer, a diffusion barrier, and/or a m...
01/04/2011
7858433Photoelectric converting film stack type solid-state image pickup device, and method of producing the same
A solid-state image pickup device comprises: a plurality of photoelectric converting films stacked via an insulating layer, the photoelectric converting films being above a semiconductor substrate in which a signal read circuit is formed, in which each of the photoe...
12/28/2010
7858432Method of manufacturing solar cells with buried contacts with a laser
A buried contact solar cell which is capable of operating with high efficiency is manufactured by a method which comprises the steps of forming a groove in a surface of a substrate, and forming an electrode by filling a conductive material in the groove using a lase...
12/28/2010
7820475Back side contact solar cell structures and fabrication processes
In one embodiment, active diffusion junctions of a solar cell are formed by diffusing dopants from dopant sources selectively deposited on the back side of a wafer. The dopant sources may be selectively deposited using a printing method, for example. Multiple dopant...
10/26/2010
7772028CMOS imager with Cu wiring and method of eliminating high reflectivity interfaces therefrom
A CMOS image sensor and method of fabrication wherein the sensor includes Copper (Cu) metallization levels allowing for incorporation of a thinner interlevel dielectric stack to result in a pixel array exhibiting increased light sensitivity. The CMOS image sensor in...
08/10/2010
1                      
 
Sign InRegister
Username  
Password   
forgot password?