News Column

"Electronic Device and Method for Forming the Same" in Patent Application Approval Process

January 30, 2014



By a News Reporter-Staff News Editor at Politics & Government Week -- A patent application by the inventor CHO, Young Man (Icheon, KR), filed on July 8, 2013, was made available online on January 16, 2014, according to news reporting originating from Washington, D.C., by VerticalNews correspondents.

This patent application has not been assigned to a company or institution.

The following quote was obtained by the news editors from the background information supplied by the inventors: "With the increasing development of semiconductor industries, highly-integrated electronic appliances and high-performance electronic appliances need to be developed, such that electronic devices serving as the core components of the electronic appliances also need to be highly integrated with high-level performances. However, as an integration degree of the electronic devices increases and a unit cell size of a transistor included in the electronic devices is reduced, electrical characteristics of the electronic devices are unavoidably deteriorated. As a result, a transistor including a buried word line has recently been proposed and developed."

In addition to the background information obtained for this patent application, VerticalNews journalists also obtained the inventor's summary information for this patent application: "Various embodiments are directed to providing an electronic device and a method for forming the same to address the issues of the related art.

"An embodiment relates to an electronic device and a method for forming the same in which a width of an active region is increased to facilitate patterning. A width of the word line in a device isolation region is extended, such that resistance of the word line is reduced. Thus, a word-line drive current increases, and a channel width of the active region increases. Accordingly, when a DRAM cell is scaled down, a process margin and characteristics of the electronic device can be improved.

"In accordance with one aspect of the embodiment, an electronic device includes: a device isolation film formed to define an active region in a substrate; a first gate buried to traverse the active region and the device isolation film in a first direction; and a second gate coupled to the first gate buried in the device isolation film, and extended in a second direction.

"In accordance with another aspect of the embodiment, a method for forming an electronic device includes: forming a device isolation film configured to define an active region in a substrate; forming a first gate configured to traverse the active region and the device isolation film in a first direction; and forming a second gate, coupled to the first gate buried in the device isolation film and extending in a second direction.

"The second gate may be extended to one end of the active region.

"The second gate may be more extended than one end of the active region.

"The second gate may be extended in one direction within the device isolation film.

"An insulation film is formed over the first gate and the second gate.

"A bit line is configured to cross the first gate.

"A source/drain region is formed over the active region.

"The active region may be in a 6F2 configuration.

"A longitudinal axis of the active region may be arranged in a diagonal direction with respect to the first direction.

"In accordance with another aspect of the embodiment, a processor includes: a core unit configured to perform an operation corresponding to an external input command using data; a cache memory unit configured to store at least one of data required for executing the operation, data corresponding to a result of the operation execution, and an address of the operation execution data; a bus interface coupled between the core unit and the cache memory, and configured to transmit data between the core unit and the cache memory; an embedded memory unit configured to store data; a communication module unit configured to transmit/receive data to/from an external device by wire or wirelessly; a memory controller configured to drive an external memory device; and a media processor configured to fabricate either data processed by a processor or data received from an external input device, and output the fabricated data to an external interface device, wherein the embedded memory unit includes a device isolation film configured to define an active region in a substrate, a first gate buried to traverse the active region and the device isolation film in a first direction, and a second gate coupled to the first gate buried in the device isolation film, and extended in a second direction.

"In accordance with another aspect of the embodiment, a system includes: a processor configured to interpret an external input command, and control an operation of information according to a result of the command interpretation; an auxiliary memory unit configured to store a program needed for the command interpretation and the information; a main memory unit configured to shift/store the program and the information from the auxiliary memory unit in such a manner that the processor performs the operation using the program and the information during execution of the program; and an interface configured to perform communication between an external part and at least one of the processor, the auxiliary memory unit, and the main memory unit, wherein the main memory unit includes a device isolation film formed to define an active region in a substrate; a first gate buried to traverse the active region and the device isolation film in a first direction; and a second gate coupled to the first gate buried in the device isolation film, and extended in a second direction.

"In accordance with another aspect of the embodiment, a data storage system includes: a storage unit configured to store data, and maintain the stored data irrespective of the presence or absence of power source; a controller configured to control data input/output (I/O) of the storage unit in response to an external input command; a temporary storage unit configured to temporarily store data exchanged between the storage unit and an external part; and an interface configured to perform communication between an external part and at least one of the storage unit, the controller, and the temporary storage unit, wherein the temporary storage unit includes a device isolation film formed to define an active region in a substrate; a first gate buried to traverse the active region and the device isolation film in a first direction; and a second gate coupled to the first gate buried in the device isolation film, and extended in a second direction.

"In accordance with another aspect of the embodiment, a memory system includes: a memory configured to store data, and maintain the stored data irrespective of the presence or absence of power source; a memory controller configured to control data input/output (I/O) of the storage unit in response to an external input command; a buffer memory configured to perform buffering of data exchanged between the storage unit and an external part; and an interface configured to perform communication between an external part and at least one of the storage unit, the memory controller, and the buffer memory, wherein the buffer memory includes a device isolation film formed to define an active region in a substrate; a first gate buried to traverse the active region and the device isolation film in a first direction; and a second gate coupled to the first gate buried in the device isolation film, and extended in a second direction.

"It is to be understood that the embodiments are exemplary and explanatory and are not intended to be limiting.

BRIEF DESCRIPTION OF THE DRAWINGS

"FIG. 1 is a plan view illustrating an electronic device including a buried word line and a method for forming the same according to an embodiment.

"FIGS. 2A to 2E are cross-sectional views illustrating an electronic device including a buried word line and a method for forming the same according to an embodiment.

"FIG. 3 is a perspective view illustrating an electronic device including a buried word line and a method for forming the same according to an embodiment.

"FIG. 4 is a block diagram illustrating a processor according to an embodiment.

"FIG. 5 is a block diagram illustrating a system according to an embodiment.

"FIG. 6 is a block diagram illustrating a data storage system according to an embodiment.

"FIG. 7 is a block diagram illustrating a memory system according to an embodiment."

URL and more information on this patent application, see: CHO, Young Man. Electronic Device and Method for Forming the Same. Filed July 8, 2013 and posted January 16, 2014. Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=3470&p=70&f=G&l=50&d=PG01&S1=20140109.PD.&OS=PD/20140109&RS=PD/20140109

Keywords for this news article include: Patents, Information Technology, Information and Data Storage.

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Source: Politics & Government Week


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