Patent application number | Description | Published |
20100006816 | Self-aligned vertical bipolar junction transistor for phase change memories - A phase change memory may include self-aligned polysilicon vertical bipolar junction transistors used as select devices. The bipolar junction transistors may be formed with double shallow trench isolation. For example, the emitters of each bipolar transistor may be defined by a first set of parallel trenches in one direction and a second set of parallel trenches in the opposite direction. In some embodiments, the formation of parasitic PNP transistors between adjacent emitters may be avoided. | 01-14-2010 |
20100163835 | CONTROLLING THE CIRCUITRY AND MEMORY ARRAY RELATIVE HEIGHT IN A PHASE CHANGE MEMORY FEOL PROCESS FLOW - A CMOS logic portion embedded with a PCM portion is recessed by a gate structure height as measured by a thickness of a gate oxide and a polysilicon gate to provide planarity of the CMOS logic portion with the PCM portion is described. | 07-01-2010 |
20110248382 | DOUBLE PATTERNING METHOD FOR CREATING A REGULAR ARRAY OF PILLARS WITH DUAL SHALLOW TRENCH ISOLATION - A method is disclosed for forming vertical bipolar junction transistors including a regular array of base contact pillars and emitter contact pillars with a width below the minimum lithographical resolution F of the lithographic technique employed. In an embodiment, the pillar array features have a dimension of approximately F/2, though this dimension could be reduced down to other values compatible with embodiments of the invention. A storage element, such as a phase change storage element, can be formed above the regular array of base contact pillars and emitter contact pillars. | 10-13-2011 |
20120126374 | Forming Three Dimensional Isolation Structures - A three dimensional shallow trench isolation structure including sets of parallel trenches extending in two perpendicular directions may be formed by depositing a conformal deposition in a first set of parallel trenches, oxidizing the second set of trenches to enable selective deposition in said second set of trenches and then conformally depositing in said second set of trenches. In some embodiments, only one wet anneal, one etch back, and one high density plasma chemical vapor deposition step may be used to fill both sets of trenches. | 05-24-2012 |
20120302052 | Methods of Forming Electrical Contacts - Some embodiments include methods of forming contacts. A row of projections may be formed over a semiconductor substrate. The projections may include a plurality of repeating components of an array, and a terminal projection. The terminal projection may have a sacrificial material spaced from semiconductor material of the substrate by a dielectric structure. An electrically conductive line may be formed along the row. The line may wrap around an end of the terminal projection and bifurcate into two branches that are along opposing sides of the repeating components. The individual branches may have regions spaced from the sacrificial material by segments of gate dielectric. The sacrificial material may be removed, together with the segments of gate dielectric, to form a contact opening. An electrically conductive contact may be formed within the contact opening and directly against the regions of the branches. | 11-29-2012 |
20130037879 | VERTICAL DEVICES AND METHODS OF FORMING - Vertical devices and methods of forming the same are provided. One example method of forming a vertical device can include forming a trench in a semiconductor structure, and partially filling the trench with an insulator material. A dielectric material is formed over the insulator material. The dielectric material is modified into a modified dielectric material having an etch rate greater than an etch rate of the insulator material. The modified dielectric material is removed from the trench via a wet etch. | 02-14-2013 |
20130087849 | METHOD OF FABRICATING A CHARGE TRAP NAND FLASH MEMORY DEVICE - Subject matter disclosed herein relates to a method of manufacturing a semiconductor integrated circuit device, and more particularly to a method of fabricating a charge trap NAND flash memory device. | 04-11-2013 |
20130344691 | Methods of Forming Electrical Contacts - Some embodiments include methods of forming contacts. A row of projections may be formed over a semiconductor substrate. The projections may include a plurality of repeating components of an array, and a terminal projection. The terminal projection may have a sacrificial material spaced from semiconductor material of the substrate by a dielectric structure. An electrically conductive line may be formed along the row. The line may wrap around an end of the terminal projection and bifurcate into two branches that are along opposing sides of the repeating components. The individual branches may have regions spaced from the sacrificial material by segments of gate dielectric. The sacrificial material may be removed, together with the segments of gate dielectric, to form a contact opening. An electrically conductive contact may be formed within the contact opening and directly against the regions of the branches. | 12-26-2013 |
20140027834 | SHALLOW TRENCH ISOLATION FOR A MEMORY - In some embodiments, a gate structure with a spacer on its side may be used as a mask o form self-aligned trenches in microelectronic memory, such as a flash memory. A first portion of the gate structure may be used to form the mask, together with sidewall spacers, in some embodiments. Then, after forming the shallow trench isolations, a second portion of the gate structure may be added to form a mushroom shaped gate structure. | 01-30-2014 |
20140085973 | METHOD, SYSTEM AND DEVICE FOR RECESSED CONTACT IN MEMORY ARRAY - Embodiments disclosed herein may relate to forming a contact region for an interconnect between a selector transistor and a word-line electrode in a memory device. | 03-27-2014 |
20140106554 | Methods of Forming Gated Devices - Some embodiments include methods of forming gated devices. An upper region of a semiconductor material is patterned into a plurality of walls that extend primarily along a first direction. The walls are spaced from one another by trenches that extend primarily along the first direction. Steps are formed along bottoms of the trenches. Gatelines are formed on the steps and along lower regions of the walls. After the gatelines are formed, the walls are patterned into spaced-apart pillars that have bottom regions below the gatelines. In some embodiments the gated devices may be transistors or thyristors. | 04-17-2014 |
20140145238 | SEMICONDUCTOR DEVICES AND FABRICATION METHODS - Methods of fabricating vertical devices are described, along with apparatuses and systems that include them. In one such method, a vertical device is formed at least partially in a void in a first dielectric material and a second dielectric material. Additional embodiments are also described. | 05-29-2014 |
20140353781 | Memory Devices Comprising Magnetic Tracks Individually Comprising A Plurality Of Magnetic Domains Having Domain Walls And Methods Of Forming A Memory Device Comprising Magnetic Tracks Individually Comprising A Plurality Of Magnetic Domains Having Domain Walls - A method of forming a memory device having magnetic tracks individually comprising a plurality of magnetic domains having domain walls, includes forming an elevationally outer substrate material of uniform chemical composition. The uniform composition material is partially etched into to form alternating regions of elevational depressions and elevational protrusions in the uniform composition material. A plurality of magnetic tracks is formed over and which angle relative to the alternating regions. Interfaces of immediately adjacent of the regions individually form a domain wall pinning site in individual of the magnetic tracks. Other methods, including memory devices independent of method, are disclosed. | 12-04-2014 |
Patent application number | Description | Published |
20100180999 | Pair Of Pneumatic Tires For Two-Wheeled Vehicles - A pair of tyres comprising a front tyre and a rear tyre to be mounted on a front wheel and a rear wheel respectively of a two-wheeled vehicle, in which each of the front and rear tyres includes: a carcass structure having at least one carcass ply, the ends of which are in engagement with respective circumferential annular reinforcing structures; a belt structure applied to the carcass structure at a radially external position; a tread band applied at a radially external position to said belt structure; a pair of sidewalls laterally applied onto opposite sides relative to said carcass structure; and a pair of reinforcing side structures laterally applied at the sidewalls. Each reinforcing structure includes a plurality of cords where at each point of a cord, an angle different from zero is identified which is included between the tangent of the cord direction at that point and the tangent to a circumferential direction of the tyre passing through the point. The angle is constant or varying in a monotonic manner over the whole length of the cord. | 07-22-2010 |
20100282390 | MOTORCYCLE TYRE - A tyre for motorcycles includes a tread band in which a tread pattern is formed which includes a series of transverse grooves disposed at least laterally of the equatorial plane. The tread pattern on the whole defines a low sea/land ratio on the tread band. The series of transverse grooves includes a plurality of main recesses having an overall length at least equal to one fourth of a lateral extension of the tread band. The main recesses define with the equatorial plane, an angle less than or equal to 65°, substantially over the entire length thereof. | 11-11-2010 |
20110073232 | MOTOR VEHICLE TIRE - A motorcycle tyre having a transverse curvature ratio f/C≧0.2 and a sidewall height ratio (H−f)/H≦0.7, has a belt structure provided with a belt layer including at least one filiform reinforcing element arranged to form a plurality of windings parallel to one another at a substantially zero angle relative to the equatorial plane of the tyre. The available elongation of the belt in an intermediate zone between the equatorial plane, and the shoulder is greater than the available elongation corresponding to the equatorial plane. The aforementioned intermediate zone extends at least in a range centred on a camber angle of ±35°. | 03-31-2011 |
20110100518 | MOTORCYCLE TYRE - A motorcycle tyre includes a tread band divided into a central zone and two shoulder zones. The central zone extends symmetrically on either side of the equatorial plane of the tyre over a width less than or equal to 60% of the lateral extension of the tread band and has in the central zone at least one first module repeatedly duplicated in a direction of circumferential extension of the tyre including: at least two longitudinal grooves inclined relative to the equatorial plane; and at least two substantially transverse grooves intersecting the two longitudinal grooves so as to define at least one block. The central zone further has a solids/voids ratio greater than the solids/voids ratio of the shoulder portions. The tread pattern has at least one circumferentially continuous rib situated in an axially outer portion of the shoulder portions. | 05-05-2011 |
20110162769 | MOTORCYCLE TYRE - A motorcycle tyre includes: a tread band with a tread pattern including, in a zone symmetrically arranged on either side of the equatorial plane, a first module repeatedly duplicated in a direction of circumferential extension of the lyre. The module has at least two first longitudinal grooves inclined in an oppositely arranged manner relative to the equatorial plane; and at least two substantially transverse grooves designed to intersect the two longitudinal grooves so as to define at least one block. The zone has a width in the axial direction of between 20% and 65% of the width of the tread band and a solids/voids ratio equal to at least 0.20. The tread pattern also has at least one substantially transverse continuous portion which extends over the entire width of the tread band delimiting at least one end of the module in the circumferential direction. | 07-07-2011 |
20110247738 | MOTORCYCLE TYRE - Motorcycle tyre suitable for mounting on the rear wheel of a motorcycle, including a tread band having a tread pattern includes a module which is repeated in a direction of circumferential extension of the tyre, the module having: at least two substantially longitudinal first grooves which are inclined opposite to each other with respect to the equatorial plane of the tyre; and at least two substantially longitudinal second grooves which are inclined opposite to each other with respect to the equatorial plane. Each substantially longitudinal first groove alternates with a second longitudinal groove. The substantially longitudinal first grooves have, in a direction axially away from the equatorial plane of the tyre, two substantially consecutive curvilinear sections, the first section of which has a convexity and the second section of which has a concavity directed in the rolling direction of the tyre. The first curvilinear section defines along its extension with the equatorial plane angles smaller than or equal to 90°. | 10-13-2011 |
20110253276 | TYRE FOR MOTOR VEHICLES - A tyre for motor vehicles, in particular for rear wheels of motor vehicles, has a tread band including an annular central portion, two first annular side portions and two second annular side portions, each arranged between the annular central portion and a respective first annular side portion and being narrower than the first annular side portion. The tread band has at least one module replicated along a circumferential direction of the tyre and includes grooves inclined with respect to the equatorial plane, at least two first grooves, each extending from a second annular side portion to a first annular side portion; at least two second grooves spaced from the first grooves in the circumferential direction, each extending only on a respective second annular side portion and at least two third grooves arranged along the circumferential direction on the opposite side to the first grooves with respect to the second grooves, each of said third grooves extending from a second annular side portion to a first annular side portion. | 10-20-2011 |
20110259491 | TYRES FOR MOTOR VEHICLES | 10-27-2011 |
20110259495 | TYRE FOR MOTORCYCLES - A tyre for motorcycles, has a tread band and includes an annular central portion and two annular shoulder portions. The tread band includes at least one first groove extending from one annular shoulder portion to the other annular shoulder portion and having a first vertex at the annular central portion, and at least one pair of second grooves arranged on opposite sides with respect to the equatorial plane, each groove of said at least one pair of second grooves being inclined with respect to the equatorial plane and extending from a respective annular shoulder portion up the annular central portion without intersecting the equatorial plane. The distance in the circumferential direction between an axially inner end of each groove of said at least one pair of second grooves and the first vertex is no greater than 3.5% of the circumferential extension of the tread band. | 10-27-2011 |
20120111465 | MOTOR VEHICLE TYRE - Motor vehicle tyre adapted to be mounted on the rear wheel of a motor vehicle, includes a tread band having a tread pattern including a module which is repeated along a direction of circumferential extension of the tyre. The module has at least one first pair of first grooves inclined in opposite directions with respect to an equatorial plane of the tyre, and extending from the equatorial plane toward a respective shoulder; at least one second pair of second grooves inclined in opposite directions with respect to the equatorial plane and extending from the equatorial plane toward a respective shoulder. The first and the second grooves are staggered relative to each other in the circumferential direction in such a way as to maintain a substantially constant distance of less than half the pitch, at the equatorial plane between each first or second groove and the adjacent one in the circumferential direction. | 05-10-2012 |
20120118456 | PAIR OF MOTOR VEHICLE TYRES - A pair of motor vehicle tyres includes a front tyre and a rear tyre to be mounted respectively on a front wheel and a rear wheel of a two-wheeled vehicle, each tyre of the pair having a tread band extending around an axis of rotation. The tread band of the front tyre includes a central annular portion straddling an equatorial plane and two annular shoulder portions disposed on axially opposite sides of the central annular portion. The central annular portion includes at least a pair of first grooves extending substantially longitudinally on opposite sides of the equatorial plane in such a way as to form a concavity directed toward the equatorial plane. Each shoulder portion includes a plurality of second grooves isolated from the first grooves and extending substantially transversally so as to form an average inclination with the equatorial plane greater than 90°. The tread band of the rear tyre includes instead a module which is replicated along a direction of circumferential development of the tyre, the module including: at least one first pair of first grooves inclined in opposite directions with respect to the equatorial plane of the tyre; each first groove of the first pair extending along a portion of the tread band between the equatorial plane and a respective shoulder and forming an average inclination less than 60° with the equatorial plane. | 05-17-2012 |
20120186712 | MOTOR VEHICLE TYRE - A motor vehicle tyre, particularly for front wheels of motor vehicles, has a tread extending around an axis of rotation and includes a central annular portion which straddles an equatorial plane and two annular shoulder portions arranged on axially opposite sides of the central annular portion. The tread band has a void-to-rubber ratio of less than 10%, and the central annular portion has an axial extension less than 40% of the axial development of the tread band and includes at least a pair of first grooves extending substantially longitudinally on opposite sides of the equatorial plane. Each shoulder portion has an axial extension less than 35% of the axial development of the tread band and includes a plurality of second grooves extending substantially transversally forming an average angle with the equatorial plane of more than 90°. The central annular portion has a void-to-rubber ratio more than 0.15 and the first grooves include at least one first segment and at least one second segment which is inclined with respect to the first segment so as to form a concavity directed toward the equatorial plane. The first segment of each first groove is shorter than the second segment and precedes the second segment in the tyre rolling direction. | 07-26-2012 |
20120285593 | MOTORCYCLE TYRE AND PAIR OF MOTORCYCLE TYRES - A motorcycle tyre has a tread band including a central portion and two shoulder portions arranged at axially opposite sides of the central portion. The central portion includes a first plurality of grooves extended according to a substantially longitudinal direction and alternatively arranged at opposite sides of the equatorial plane of the tyre. Each groove of the first plurality of grooves has a substantially curvilinear course such as to form a concavity. The central portion further includes a sub-portion substantially free of grooves placed astride the equatorial plane of the tyre. Each of the shoulder portions includes a second plurality of grooves arranged obliquely relative to the equatorial plane of the tyre. | 11-15-2012 |
20140182757 | TYRE FOR MOTORCYCLES - A tyre for motorcycles, having a tread band includes a central annular portion, two lateral annular portions and two shoulder annular portions. The axial extension of these portions is not greater than 25%, 35%, and 20% of the axial development of the tread band, respectively. The tread band includes a module repeated along the circumference of the tyre in which at least two substantially longitudinal grooves, mainly extending in the lateral annular portions, include, moving axially away from the equatorial plane of the tyre, at least three substantially straight and substantially consecutive segments, wherein the first segment forms an angle with respect to the equatorial plane greater than 150°; and the second segment has a length measured along its extension smaller than the length of the first segment. | 07-03-2014 |
20140230978 | TYRE FOR MOTORCYCLES - Tyre for motorcycles, having a tread band includes a central annular portion symmetrically located astride an equatorial plane and two shoulder annular portions located on axially opposite sides with respect to the central annular portion. The tread band has a void-to-rubber ratio not greater than 25%. The central annular portion has an axial extension not greater than 65% of the axial development of the tread band and the central portion has at least one module circumferentially repeated. Each shoulder portion has an axial extension not greater than 40% of the axial development of the tread band and the module includes at least one pair of first grooves with substantially circumferential course, at least partially located on opposite sides with respect to the equatorial plane. The central annular portion has a void-to-rubber ratio not smaller than 10% and the module includes a plurality of second grooves located substantially transversally with respect to the equatorial plane. The substantially transverse second grooves define in each module together with said first grooves at least two tread band solid portions. The second grooves have at least one end spaced away from the adjacent first groove by a distance so as to form a substantially continuous tread portion adapted to connect at least two tread band solid portions. | 08-21-2014 |
20140338810 | TYRE FOR MOTORCYCLES - Tyre for motorcycles includes a carcass structure, a belt structure arranged in a radially outer position with respect to the carcass structure and a tread band arranged in a radially outer position with respect to the belt structure, wherein the belt structure is of the zero degree type and includes at least one reinforcing cord having an elongation at break smaller than about 3%; the cord includes a plurality of first metal wires twisted together so as to form a core of first metal wires and a plurality of second metal wires twisted together around said core; and the number and the diameter of the second metal wires are such that the second metal wires are not able to fully enclose the core. | 11-20-2014 |