Patents Examined by James M. Mitchell
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Patent number: 8629560Abstract: An integrated circuit structure comprising an air gap and methods for forming the same are provided. The integrated circuit structure includes a conductive line; a self-aligned dielectric layer on a sidewall of the conductive line; an air-gap horizontally adjoining the self-aligned dielectric layer; a low-k dielectric layer horizontally adjoining the air-gap; and a dielectric layer on the air-gap and the low-k dielectric layer.Type: GrantFiled: December 17, 2010Date of Patent: January 14, 2014Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chung-Shi Liu, Chen-Hua Yu
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Patent number: 7393794Abstract: After forming a resist film including a hygroscopic compound, pattern exposure is performed by selectively irradiating the resist film with exposing light while supplying water onto the resist film. After the pattern exposure, the resist film is developed so as to form a resist pattern.Type: GrantFiled: November 19, 2003Date of Patent: July 1, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Masayuki Endo, Masaru Sasago
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Patent number: 7235873Abstract: A protective device for subassemblies having a substrate and at least one component to be protected which is disposed on the substrate includes at least one covering element for covering a subassembly. An expanded filler material fills at least one given space between the substrate and the covering element and provides protection against mechanical compression. A method of producing a protective device is also provided. An expandable material is applied to the substrate and is expanded after the covering element has been mounted.Type: GrantFiled: August 1, 2002Date of Patent: June 26, 2007Assignee: Infineon Technologies AGInventors: Volker Strutz, Uta Gebauer
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Patent number: 7220615Abstract: A semiconductor card is made by a disclosed method which, in one molding step, forms a plastic body on a substrate attached to a surrounding frame by narrow connecting segments spanning a peripheral opening. The connecting segments are motivated downward by pins outside of the card periphery, holding the substrate against a lower level of the mold cavity during molding. Molded wings extending laterally from the card periphery are also formed. Following molding and curing, the casting is removed and the card singulated by excising the wings from the card. The resulting card has smooth edge surfaces and precise dimensions. Separate glob top encapsulation is avoided.Type: GrantFiled: June 11, 2001Date of Patent: May 22, 2007Assignee: Micron Technology, Inc.Inventor: Todd O. Bolken
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Patent number: 7217992Abstract: Semiconductor devices,-semiconductor wafers, and semiconductor modules are provided: wherein the semiconductor device has a small warp; damages at chip edge and cracks in a dropping test are scarcely generated; and the semiconductor device is superior in mounting reliability and mass producibility. The semiconductor device 17 comprising: a semiconductor chip 64; a porous stress relaxing layer 3 provided on the plane, whereon circuits and electrodes are formed, of the semiconductor chip; a circuit layer 2 provided on the stress relaxing layer and connected to the electrodes; and external terminals 10 provided on the circuit layer; wherein an organic protecting film 7 is formed on the plane, opposite to the stress relaxing layer, of the semiconductor chip, and respective side planes of the stress relaxing layer, the semiconductor chip 6, and the protecting film 7 are exposed outside on a same plane.Type: GrantFiled: June 7, 2004Date of Patent: May 15, 2007Assignee: Renesas Technology Corp.Inventors: Masahiko Ogino, Takumi Ueno, Shuji Eguchi, Akira Nagai, Toshiya Satoh, Toshiaki Ishii, Hiroyoshi Kokaku, Tadanori Segawa, Nobutake Tsuyuno, Asao Nishimura, Ichiro Anjoh
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Patent number: 7217579Abstract: A method for electrically testing a semiconductor wafer during integrated-circuit fabrication process, the method including: (i) providing a scanning charged-particle microscope (SCPM), having a defined scanning plane and operative, while in any one mechanical state, to scan a surface in the scanning plane within a two-dimensional scanning window, which has a given maximum size; (ii) providing in association with any layer of the wafer, it being a test layer, one or more test structures, each test structure including normally conductive areas within a normally non-conductive background in one or more layers, which include said test layer, the conductive areas formed as one or more patterns; the patterns in said test layer include one or more clusters of mutually isolated pads; each pad is conductively connected with a corresponding distinct point on the patterns and all the pads in any one cluster are sized and arranged so that at least a significant portion of each pad falls within a common window whose sizeType: GrantFiled: December 19, 2002Date of Patent: May 15, 2007Assignee: Applied Materials, Israel, Ltd.Inventors: Ariel Ben-Porath, Douglas Ray Hendricks
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Patent number: 7214594Abstract: A method and apparatus are provided an interconnect cladding layer. In one embodiment, a first sacrificial layer is deposited over a substrate and patterned. In the vias created during the patterning operation, a conductive material is placed to create conductive interconnects. After planarizing the conductive material, the sacrificial layer is removed leaving the interconnect exposed. A cladding layer is then deposited over the conductive material.Type: GrantFiled: March 26, 2002Date of Patent: May 8, 2007Assignee: Intel CorporationInventors: Lawrence D. Wong, Jihperng Leu, Grant Kloster, Andrew Ott, Patrick Morrow
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Patent number: 7208402Abstract: An apparatus comprising: a die having a top metal layer, the top metal layer comprised of at least a first metal line and a second metal line; a passivation layer covering the top metal layer; a C4 bump on the passivation layer; and a first passivation opening and a second passivation opening in the passivation layer, the first passivation opening to connect the first metal line to the C4 bump, and the second passivation opening to connect the second metal line to the C4 bump.Type: GrantFiled: June 3, 2005Date of Patent: April 24, 2007Assignee: Intel CorporationInventors: Mark T. Bohr, Robert W. Martell
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Patent number: 7202157Abstract: A method for forming a metallic interconnect in a semiconductor device is disclosed. An example method forms an IDL on a substrate including predetermined devices, forms a via hole in the IDL, depositing a first metal diffusion preventive layer and a metal layer to form a via plug on the IDL, and performs a planarization process using the first metal diffusion preventive layer using as an etching stop layer. In addition, the example method forms a metallic interconnect on the first metal diffusion preventive layer, deposits the other metal diffusion preventive layer on the metallic interconnect, and etches a predetermined part of first and second metal diffusion preventive layers and the metallic interconnect using a mask pattern.Type: GrantFiled: December 30, 2004Date of Patent: April 10, 2007Assignee: Dongbu Electronics Co., Ltd.Inventor: Yong Soo Ahn
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Patent number: 7199440Abstract: The present invention provides a low cost device that has a true die to external fiber optic connection. Specifically, the present invention relates to an optical device package joined to a semiconductor device package. In some cases, the combination is joined using wirebond studs and an adhesive material. In other cases, the combination is joined using an anisotropic conductive film. Yet, in other cases, the combination is joined using solder material. Each of these joining mechanisms provides high levels of thermal, electrical and optical performance. The joining mechanisms can apply to optical sub-assembly and chip sub-assembly interfaces in transceivers, transmitters, as well as receivers for opto-electronic packages.Type: GrantFiled: December 30, 2004Date of Patent: April 3, 2007Assignee: National Semiconductor CorporationInventors: Luu Thanh Nguyen, Ken Pham, Peter Deane, William Paul Mazotti, Bruce Carlton Roberts, Jia Liu
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Patent number: 7198979Abstract: A method of stacking semiconductor chips includes providing four semiconductor chips that each include a top surface with central bond pads. Each of the bond pads is electrically coupled to second bond pads located in a peripheral portion of the semiconductor chip through a conductive layer. The first and the second semiconductor chips are arranged alongside one another on a carrier substrate. The second bond pads from the first and second semiconductor chips are bonded to corresponding landing pads on the substrate. The third semiconductor chip is then stacked over the first semiconductor chip and the fourth semiconductor chip over the second semiconductor chip. The second bond pads of the third and fourth semiconductor chips can then be bonded to contact pads of the substrate. The substrate can then be separated into a first stack that includes the first and third semiconductor chips and a second stack that includes the second and fourth semiconductor chips.Type: GrantFiled: November 4, 2003Date of Patent: April 3, 2007Assignee: Infineon Technologies AGInventors: Jochen Thomas, Wolfgang Hetzel, Ingo Wennemuth
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Patent number: 7189599Abstract: A lead frame of the present invention includes a pair of base portions having a substantially flat bottom each. An island portion and electrode portions are partly connected to the tops of the base portions. The lead frame needs a minimum of production cost and promotes dense mounting of semiconductor devices to a circuit board.Type: GrantFiled: September 9, 2004Date of Patent: March 13, 2007Assignee: NEC Electronics CorporationInventor: Takekazu Tanaka
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Patent number: 7183130Abstract: A device structure and method for forming an interconnect structure in a magnetic random access memory (MRAM) device. In an exemplary embodiment, the method includes defining a magnetic stack layer on a lower metallization level, the magnetic stack layer including a non-ferromagnetic layer disposed between a pair of ferromagnetic layers. A conductive hardmask is defined over the magnetic stack layer, and selected portions of the hardmask and the magnetic stack layer, are then removed, thereby creating an array of magnetic tunnel junction (MTJ) stacks. The MTJ stacks include remaining portions of the magnetic stack layer and the hardmask, wherein the hardmask forms a self aligning contact between the magnetic stack layer and an upper metallization level subsequently formed above the MTJ stacks.Type: GrantFiled: July 29, 2003Date of Patent: February 27, 2007Assignee: International Business Machines CorporationInventors: Joachim Nuetzel, Xian Jay Ning, William C. Wille
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Patent number: 7179680Abstract: An optoelectronic component with an optoelectronic transducer is produced with the novel method. The optoelectronic component has a coupling region, which is formed in a radiation-transparent molding of the optoelectronic component. On the base of a clearance of the coupling region, the optoelectronic component has a radiation-optical functional surface, which is formed from the housing material and introduced into the molding with the aid of a profile milling cutter.Type: GrantFiled: October 28, 2003Date of Patent: February 20, 2007Assignee: Infineon Technologies AGInventor: Manfred Fries
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Patent number: 7180195Abstract: An apparatus comprising: a die having a top metal layer, the top metal layer comprised of at least a first metal line and a second metal line; a passivation layer covering the top metal layer; a C4 bump on the passivation layer; and a first passivation opening and a second passivation opening in the passivation layer, the first passivation opening to connect the first metal line to the C4 bump, and the second passivation opening to connect the second metal line to the C4 bump.Type: GrantFiled: December 17, 2003Date of Patent: February 20, 2007Assignee: Intel CorporationInventors: Mark T. Bohr, Robert W. Martell
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Patent number: 7173332Abstract: A tool is used to hold an array of wafer scale protective caps and place the array onto a semiconductor wafer. The tool comprises a first tool half made from a semiconductor which has a coefficient of thermal expansion which is about the same as that of the wafer. The first tool half has surface features for molding and retaining the array. The caps have central areas surrounded by sidewalls.Type: GrantFiled: December 8, 2003Date of Patent: February 6, 2007Assignee: Silverbrook Research Pty LtdInventor: Kia Silverbrook
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Patent number: 7172914Abstract: A method of forming a semiconductor structure includes forming an isolation region in a semiconductor substrate. A first oxide layer is on the substrate, a first sacrificial layer is on the first oxide layer, and a first nitride layer is on the first sacrificial layer. The first oxide layer may be a screen oxide layer, and the method provides consistency in the thickness of the screen oxide layer.Type: GrantFiled: January 2, 2001Date of Patent: February 6, 2007Assignee: Cypress Semiconductor CorporationInventor: Sundar Narayanan
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Patent number: 7170184Abstract: Methods are provided to improve the adhesive bonding of a semiconductor die to a substrate through an adhesive paste by forming a layer of silicon dioxide on the back surface of the semiconductor die prior to applying the adhesive paste. Contacting the semiconductor die with ozone, in a gas mixture or in a mixture with water provides rapid oxidation of the silicon layer at the back of the semiconductor die to a silicon dioxide layer of at least 10 angstroms thick, which is sufficient to greatly improve bonding to the adhesive. The formation of a silicon dioxide surface layer prior to application of the adhesive is particularly beneficial when combined with rapid, snap curing processes, where the adhesive can be reliably cured by heating the semiconductor die for less than about 1 minute.Type: GrantFiled: January 13, 2003Date of Patent: January 30, 2007Assignee: Micron Technology, Inc.Inventors: Tongbi Jiang, Mike Connell, Li Li, Curtis Hollingshead
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Patent number: 7169691Abstract: A method of fabricating a chip-scale or wafer-level package having passivation layers on substantially all surfaces thereof to form a hermetically sealed package. The package may be formed by disposing a first passivation layer on the passive or backside surface of a semiconductor wafer. The semiconductor wafer may be attached to a flexible membrane and diced, such as by a wafer saw, to separate the semiconductor devices. Once diced, the flexible membrane may be stretched so as to laterally displace the individual semiconductor devices away from one another and substantially expose the side edges thereof. Once the side edges of the semiconductor devices are exposed, a passivation layer may be formed on the side edges and active surfaces of the devices. A portion of the passivation layer over the active surface of each semiconductor device may be removed so as to expose conductive elements formed therebeneath.Type: GrantFiled: January 29, 2004Date of Patent: January 30, 2007Assignee: Micron Technology, Inc.Inventor: Trung T. Doan
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Patent number: 7164169Abstract: A semiconductor device has a substrate and a dielectric film formed directly or indirectly on the substrate. The dielectric film contains a metal silicate film, and a silicon concentration in the metal silicate film is lower in a center portion in the film thickness direction than in an upper portion and in a lower portion.Type: GrantFiled: August 22, 2002Date of Patent: January 16, 2007Assignee: NEC CorporationInventors: Heiji Watanabe, Haruhiko Ono, Nobuyuki Ikarashi