Utilizing A Coating To Perfect The Dicing Patents (Class 438/114)
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Patent number: 9666437Abstract: A method for manufacturing a semiconductor device including a semiconductor chip having a front surface electrode and a rear surface electrode provided on a front surface and a rear surface, respectively, the method includes a front surface electrode layer forming step of forming a front surface electrode layer as the front surface electrode on a front surface of a semiconductor wafer forming the semiconductor chip; a thinning step of grinding a rear surface of the semiconductor wafer to reduce a thickness of the semiconductor wafer after the front surface electrode layer forming step; a plating step of forming an electrode plating film as the front surface electrode on a surface of the front surface electrode layer after the thinning step; and a rear surface electrode forming step of forming the rear surface electrode on the ground rear surface of the semiconductor wafer after the plating step.Type: GrantFiled: October 8, 2015Date of Patent: May 30, 2017Assignee: FUJI ELECTRIC CO., LTD.Inventor: Yuichi Urano
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Patent number: 9630837Abstract: A structure and a fabrication method thereof are provided. The method includes the following operations. A device substrate having a first surface and a second surface opposite to each other is received. A carrier substrate having a third surface and a fourth surface opposite to each other is received. An intermediate layer is formed between the third surface of the carrier substrate and the second surface of the device substrate. The second surface of the device substrate is attached to the third surface of the carrier substrate. The device substrate is thinned from the first surface. A device is formed over the first surface of the device substrate. The carrier substrate and the device substrate are patterned from the fourth surface to form a cavity in the carrier substrate, the intermediate layer and the device substrate.Type: GrantFiled: January 15, 2016Date of Patent: April 25, 2017Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.Inventors: Chia-Hua Chu, Chun-Wen Cheng
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Patent number: 9609793Abstract: A electromagnetic shielding film includes a conductive supporting substrate which includes a cured material of a thermosetting resin including a conductive filler; a metal thin film layer which covers one surface of the conductive supporting substrate; a thermosetting adhesive layer which covers a surface of the metal thin film layer; and a peeling substrate which covers the other surface of the conductive supporting substrate.Type: GrantFiled: June 30, 2014Date of Patent: March 28, 2017Assignee: SHIN-ETSU POLYMER CO., LTD.Inventor: Toshiyuki Kawaguchi
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Patent number: 9583391Abstract: There is provided a wafer processing method including a modified layer forming step. In the wafer processing method, the power of a pulse laser beam set in the modified layer forming step is set to a power that forms modified layers and cracks in such a manner that a wafer is allowed to be divided into individual device chips before the thickness of the wafer reaches a finished thickness and, after the wafer is divided into the individual device chips, the time until the thickness of the wafer reaches the finished thickness is such a time that damage due to rubbing of the individual device chips against each other is not caused through grinding under a predetermined grinding condition set in a back surface grinding step.Type: GrantFiled: July 5, 2016Date of Patent: February 28, 2017Assignee: Disco CorporationInventor: Masaru Nakamura
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Patent number: 9515237Abstract: A method for producing a light emitting device includes a first bonding step including disposing a first bonding member a mounting substrate, placing a light emitting element on the mounting substrate such that the first bonding member is located between a mounting face of the light emitting element and the mounting substrate, and hardening the first bonding member thereby bonding the light emitting element and the mounting substrate such that, in a plan view, an entirety of the first bonding member is contained within an area of the mounting face of the light emitting element; and a second bonding step including disposing a second bonding member on the upper face of the mounting substrate such that, in a plan view, the second bonding member is located at at least a portion of an outer edge of the mounting face of the light emitting element, and hardening the second bonding member.Type: GrantFiled: March 23, 2016Date of Patent: December 6, 2016Assignee: NICHIA CORPORATIONInventor: Hideaki Takeda
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Patent number: 9408311Abstract: A method of manufacturing an electronic component module includes sealing a surface of an aggregate substrate on which a plurality of electronic components are mounted with a sealing resin and cutting boundary portions between electronic component modules from an outer surface of the sealing resin to a position at least partially through the aggregate substrate to form first grooves. A shield layer is formed by coating the outer surface of the sealing resin with a conductive resin and filling the first grooves with the conductive resin, and recesses are formed at positions on the shield layer where the first grooves are formed. The boundary portions between electronic component modules are cut along the corresponding recesses so that second grooves each having a width smaller than the width of a corresponding one of the recesses are formed, and the aggregate substrate is singulated into the individual electronic component modules.Type: GrantFiled: July 5, 2013Date of Patent: August 2, 2016Assignee: Murata Manufacturing Co., Ltd.Inventors: Koichi Kanryo, Akio Katsube, Shunsuke Kitamura
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Patent number: 9368456Abstract: A semiconductor package includes a dielectric layer in which a chip is embedded, interconnection parts disposed on a first surface of the dielectric layer, through connectors each of which penetrates a portion of the dielectric layer over the chip to electrically couple the chip to a corresponding one of the interconnection parts, a shielding plate covering a second surface of the dielectric layer that is opposite to the first surface, and a shielding encapsulation part connected to one of the interconnection parts and covering sidewalls of the dielectric layer. The shielding encapsulation part includes a portion contacting the shielding plate.Type: GrantFiled: May 29, 2014Date of Patent: June 14, 2016Assignee: SK HYNIX INC.Inventor: Qwan Ho Chung
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Patent number: 9299592Abstract: A package structure and a packaging method of wafer level chip scale package are provided. The packaging method includes: providing a carrier, and disposing a plurality of chips on the carrier; forming a plurality of adhesive layers on a surface of the corresponding chips; covering a conductive cover plate, bonding the conductive cover plate with the chips through the adhesive layers, and dividing out a plurality of packaging spaces by the conductive cover plate for disposing the chips respectively; and providing an insulation material to fill the packaging spaces through via holes on the conductive cover plate to form a first insulation structure; finally, removing the carrier.Type: GrantFiled: December 18, 2014Date of Patent: March 29, 2016Assignees: NIKO SEMICONDUCTOR CO., LTD., Super Group Semiconductor Co. LTD.Inventors: Chih-Cheng Hsieh, Hsiu-Wen Hsu, Chun-Ying Yeh, Chung-Ming Leng
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Patent number: 9236429Abstract: A semiconductor structure includes a substrate, a dam element, a first isolation layer, a second isolation layer, and a conductive layer. The substrate has a conductive pad, a trench, a sidewall, a first surface, and a second surface opposite to the first surface. The conductive pad is located on the second surface. The trench has a first opening at the first surface, and has a second opening at the second surface. The dam element is located on the second surface and covers the second opening. The dam element has a concave portion that is at the second opening. The first isolation layer is located on a portion of the sidewall. The second isolation layer is located on the first surface and the sidewall that is not covered by the first isolation layer, such that an interface is formed between the first and second isolation layers.Type: GrantFiled: April 29, 2015Date of Patent: January 12, 2016Assignee: XINTEC INC.Inventors: Yu-Lin Yen, Sheng-Hao Chiang, Hung-Chang Chen, Ho-Ku Lan, Chen-Mei Fan
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Patent number: 9196534Abstract: A method for preparing semiconductor devices in a flip chip process comprises forming deep grooves surrounding each of the semiconductor chips; depositing a first plastic package material to form a first plastic package layer covering front surface of the semiconductor wafer and filling the deep grooves; depositing a metal layer at back surface of the semiconductor wafer after grinding; grinding an outermost portion of the metal layer thus forming a ring area located at back surface around edge of the semiconductor wafer not covered by the metal layer; cutting the first plastic package layer, the semiconductor wafer, the metal layer and the first plastic package material filled in the deep grooves along a straight line formed by two ends of each of the deep grooves filled with the first plastic package material; and picking up the semiconductor devices and mounting on a substrate without flipping the semiconductor devices.Type: GrantFiled: February 24, 2013Date of Patent: November 24, 2015Assignee: Alpha and Omega Semiconductor IncorporatedInventors: Yan Xun Xue, Ping Huang, Hamza Yilmaz, Yueh-Se Ho, Lei Shi, Liang Zhao, Ping Li Wu, Lei Duan, Yuping Gong
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Patent number: 9177919Abstract: A chip package including a first substrate having a first surface and a second surface opposite thereto is provided. The first substrate has a micro-electric element and a plurality of conducting pads adjacent to the first surface. The first substrate has a plurality of openings respectively exposing a portion of each conducting pad. A second substrate is disposed on the first surface. An encapsulation layer is disposed on the first surface and covers the second substrate. A redistribution layer is disposed on the second surface and extends into the openings to electrically connect the conducting pads.Type: GrantFiled: November 13, 2014Date of Patent: November 3, 2015Assignee: XINTEC INC.Inventors: Chien-Hung Liu, Ying-Nan Wen
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Method for separating a plurality of dies and a processing device for separating a plurality of dies
Patent number: 9165895Abstract: A method for separating a plurality of dies is provided.Type: GrantFiled: November 7, 2011Date of Patent: October 20, 2015Assignee: INFINEON TECHNOLOGIES AGInventors: Helmut Brunner, Manfred Engelhardt -
Patent number: 9153566Abstract: A semiconductor device manufacturing method includes forming grooves in a surface of a semiconductor substrate, stacking a plurality of semiconductor chips in each area of the semiconductor substrate surrounded by the grooves to form stacked bodies, forming a first sealing resin layer that covers spaces between the plurality of semiconductor chips and lateral sides of the stacked bodies, separating the semiconductor substrate to singulate the stacked bodies, mounting the stacked bodies on a wiring substrate, forming a second sealing resin layer that seals the stacked bodies on the wiring substrate, separating the wiring substrate to singulate a portion of the wiring substrate with a single stacked body thereon, and grinding a portion of the semiconductor substrate in a thickness direction from a side of the semiconductor substrate opposite to the stacked bodies, after forming the first sealing resin layer and before singulating the wiring substrate.Type: GrantFiled: September 2, 2014Date of Patent: October 6, 2015Assignee: Kabushiki Kaisha ToshibaInventor: Takao Sato
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Patent number: 9142457Abstract: The present invention provides a dicing die bond film in which yielding and breaking of the dicing film are prevented and in which the die bond film can be suitably broken with a tensile force. In the dicing die bond film of the present invention, the tensile strength of the contact part in which the outer circumference of the push-up jig contacts the dicing film at 25° C. is 15 N or more and 80 N or less and the yield point elongation is 80% or more, the tensile strength of the wafer bonding part of the dicing film at 25° C. is 10 N or more and 70 N or less and the yield point elongation is 30% or more, [(the tensile strength of the contact part)?(the tensile strength of the wafer bonding part)] is 0 N or more and 60 N or less, and the breaking elongation rate of the die bond film at 25° C. is more than 40% and 500% or less.Type: GrantFiled: September 21, 2011Date of Patent: September 22, 2015Assignee: NITTO DENKO CORPORATIONInventors: Shumpei Tanaka, Takeshi Matsumura
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Patent number: 9130056Abstract: Methods of dicing semiconductor wafers, each wafer having a plurality of integrated circuits, are described. In an example, a method of dicing a semiconductor wafer having integrated circuits on a front side thereof involves laminating a pre-patterned bi-layer wafer-level underfill material stack on the integrated circuits of the semiconductor wafer. The pre-patterned bi-layer wafer-level underfill material stack has regions corresponding to the integrated circuits and gaps corresponding to dicing streets between the integrated circuits. The method also involves plasma etching to form trenches in the semiconductor wafer in alignment with the dicing streets to singulate the integrated circuits. An upper layer of the pre-patterned bi-layer wafer-level underfill material stack protects the integrated circuits during the plasma etching.Type: GrantFiled: October 3, 2014Date of Patent: September 8, 2015Assignee: Applied Materials, Inc.Inventors: James M. Holden, James S. Papanu, Wei-Sheng Lei, Brad Eaton, Ajay Kumar
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Patent number: 9087764Abstract: A method and structure for forming an array of micro devices is disclosed. An array of micro devices is formed over an array of stabilization posts included in a stabilization layer. The stabilization layer is bonded to a spacer side of a carrier substrate. The spacer side of the carrier substrate includes raised spacers extending from a spacer-side surface of the carrier substrate.Type: GrantFiled: July 26, 2013Date of Patent: July 21, 2015Assignee: Luxvue Technology CorporationInventors: Clayton Ka Tsun Chan, Andreas Bibl
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Patent number: 9076882Abstract: The subject matter of the present description relates to methods for the precise integration of microelectronic dice within a multichip package which substantially reduce or eliminate any misalign caused by the movement of the microelectronic dice during the integration process. These methods may include the use of a temporary adhesive in conjunction with a carrier having at least one recess for microelectronic die alignment, the use of a precision molded carrier for microelectronic die alignment, the use of magnetic alignment of microelectronic dice on a reusable carrier, and/or the use of a temporary adhesive with molding processes on a reusable carrier.Type: GrantFiled: June 3, 2013Date of Patent: July 7, 2015Assignee: Intel CorporationInventors: Aleksandar Aleksov, Ravindranath V Mahajan, Omkar Karhade, Nitin Deshpande
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Patent number: 9041198Abstract: Maskless hybrid laser scribing and plasma etching wafer dicing processes are described. In an example, a method of dicing a semiconductor wafer having a front surface with a plurality of integrated circuits thereon and having a passivation layer disposed between and covering metal pillar/solder bump pairs of the integrated circuits involves laser scribing, without the use of a mask layer, the passivation layer to provide scribe lines exposing the semiconductor wafer. The method also involves plasma etching the semiconductor wafer through the scribe lines to singulate the integrated circuits, wherein the passivation layer protects the integrated circuits during at least a portion of the plasma etching. The method also involves thinning the passivation layer to partially expose the metal pillar/solder bump pairs of the integrated circuits.Type: GrantFiled: October 22, 2013Date of Patent: May 26, 2015Assignee: Applied Materials, Inc.Inventors: Wei-Sheng Lei, Brad Eaton, James S. Papanu, Ajay Kumar
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Publication number: 20150125997Abstract: A method of packaging an integrated circuit includes forming a first integrated circuit and a second integrated circuit on a wafer, the first and second integrated circuit separated by a singulation region. The method includes covering the first and second integrated circuits with a molding compound, and sawing through the molding compound and a top portion of the wafer using a beveled saw blade, while leaving a bottom portion of the wafer remaining. The method further includes sawing through the bottom portion of the wafer using a second saw blade, the second saw blade having a thickness that is less than a thickness of the beveled saw blade. The resulting structure is within the scope of the present disclosure.Type: ApplicationFiled: November 7, 2013Publication date: May 7, 2015Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Yen-Ping Wang, Ming-Kai Liu, Kai-Chiang Wu
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Publication number: 20150118797Abstract: A method of packaging an integrated circuit includes forming a first integrated circuit and a second integrated circuit on a wafer, the first and second integrated circuit separated by a singulation region. The method includes covering the first and second integrated circuits with a molding compound, and sawing through a top portion of the molding compound using a first beveled saw blade, while leaving a bottom portion of the molding compound remaining. The method further includes sawing through the bottom portion of the molding compound and the wafer using a second saw blade, the second saw blade having a thickness that is less than a thickness of the first saw blade. The resulting structure is within the scope of the present disclosure.Type: ApplicationFiled: October 30, 2013Publication date: April 30, 2015Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Ming-Kai Liu, Yen-Ping Wang, Kai-Chiang Wu
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Patent number: 9012304Abstract: In one embodiment, a method of singulating semiconductor die from a semiconductor wafer includes forming a material on a surface of a semiconductor wafer and reducing a thickness of portions of the material. Preferably, the thickness of the material is reduced near where singulation openings are to be formed in the semiconductor wafer.Type: GrantFiled: June 1, 2012Date of Patent: April 21, 2015Assignee: Semiconductor Components Industries, LLCInventors: Gordon M. Grivna, John M. Parsey, Jr.
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Patent number: 9006004Abstract: A method includes bonding a first package component on a first surface of a second package component, and probing the first package component and the second package component from a second surface of the second package component. The step of probing is performed by probing through connectors on the second surface of the second package component. The connectors are coupled to the first package component. After the step of probing, a third package component is bonded on the first surface of the second package component.Type: GrantFiled: March 23, 2012Date of Patent: April 14, 2015Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Jing-Cheng Lin, Szu Wei Lu
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Patent number: 8999816Abstract: Approaches for protecting a wafer during plasma etching wafer dicing processes are described. In an example, a method of dicing a semiconductor wafer with a front surface having a plurality of integrated circuits thereon involves laminating a pre-patterned mask on the front surface of the semiconductor wafer. The pre-patterned mask covers the integrated circuits and exposes streets between the integrated circuits. The method also involves plasma etching the semiconductor wafer through the streets to singulate the integrated circuits. The pre-patterned mask protects the integrated circuits during the plasma etching.Type: GrantFiled: April 18, 2014Date of Patent: April 7, 2015Assignee: Applied Materials, Inc.Inventors: James M. Holden, Aparna Iyer, Brad Eaton, Ajay Kumar
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Patent number: 9000434Abstract: A semiconductor device including a semiconductor substrate having a surface including an active semiconductor device including one of a laser and a photodiode; and a visual indicator disposed on the semiconductor body and at least adjacent to a portion of said active semiconductor device, the indicator having a state that shows if damage to the active semiconductor device may have occurred.Type: GrantFiled: December 10, 2012Date of Patent: April 7, 2015Assignee: Emcore CorporationInventors: Richard Carson, Elaine Taylor, Douglas Collins
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Patent number: 8987058Abstract: A plurality of macro and micro alignment marks may be formed on a wafer. The macro alignment marks may be formed in pairs at opposite edges of the wafer. The micro alignment marks may be formed to align to streets on the wafer along a first and second direction. A molding compound may be formed on the wafer. The macro alignment marks may be exposed from the molding compound. A pair of the micro alignment marks may be exposed from the molding compound at opposite ends of the streets along the first and the second direction. The wafer may be aligned to a dicing tool using pairs of the macro alignment marks. The dicing tool may be aligned to the streets using pairs of the micro alignment marks. The wafer may be diced using successive pairs of micro alignment marks along the first and second direction.Type: GrantFiled: April 23, 2013Date of Patent: March 24, 2015Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Yu-Peng Tsai, Wen-Hsiung Lu, Cheng-Ting Chen, Hsien-Wei Chen, Ming-Da Cheng, Chung-Shi Liu
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Patent number: 8980673Abstract: Provided are a solar cell and a method of manufacturing the same. The method of manufacturing the solar cell includes stacking a solar cell device layer containing GaN on a sacrificial substrate, etching the solar cell device layer to expose the sacrificial substrate, thereby forming one or more solar cell devices comprising the solar cell device layer, anisotropically etching the exposed sacrificial substrate, contacting the solar cell devices to a stamping processor to remove the solar cell devices from the sacrificial substrate, and transferring the solar cell devices onto a receiving substrate. A high temperature semiconductor process may be performed on a substrate such as a silicon substrate to transfer the solar cell devices onto the substrate, thereby manufacturing flexible solar cells. Also, a large number of solar cells may be excellently aligned on a large area. In addition, economical solar cells may be manufactured.Type: GrantFiled: January 30, 2014Date of Patent: March 17, 2015Assignees: LG Siltron Incorporated, Korea Advanced Institute of ScienceInventors: Keon Jae Lee, Sang Yong Lee, Seung Jun Kim
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Patent number: 8962452Abstract: In one embodiment, a method of singulating semiconductor die from a semiconductor wafer includes forming a material on a surface of a semiconductor wafer and reducing a thickness of portions of the material. Preferably, the thickness of the material is reduced near where singulation openings are to be formed in the semiconductor wafer.Type: GrantFiled: December 2, 2013Date of Patent: February 24, 2015Assignee: Semiconductor Components Industries, LLCInventor: Gordon M. Grivna
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Patent number: 8956917Abstract: According to one embodiment, a manufacturing method of a semiconductor device is disclosed. The method includes: (a) forming cutting grooves in an element formation surface of a semiconductor wafer on which semiconductor elements are formed; (b) applying a protection tape on the element formation surface of the semiconductor wafer; (c) grinding a rear surface of the semiconductor wafer to thin the semiconductor wafer and to divide the semiconductor wafer into a plurality of semiconductor chips on which the semiconductor elements are formed; (d) forming an adhesive layer on the rear surface of the semiconductor wafer; (e) separating and cutting the adhesive layer for each of the semiconductor chips; and (f) removing the protection tape. The (e) is performed by spraying a high-pressure air to the adhesive layer formed on the rear surface of the semiconductor wafer while melting or softening the adhesive layer by heating.Type: GrantFiled: January 19, 2012Date of Patent: February 17, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Tetsuya Kurosawa, Shinya Takyu, Akira Tomono
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Patent number: 8951843Abstract: The present invention provides a laminated sheet that can prevent the decrease in adhering strength of a resin composition layer and the deterioration in electrical reliability and in which a back grinding tape can be peeled from a plurality of semiconductor elements collectively after dicing. The laminated sheet has a back grinding tape in which a pressure-sensitive adhesive layer is formed on a base, and a resin composition layer that is provided on the pressure-sensitive adhesive layer of the back grinding tape, wherein the tensile modulus of the pressure-sensitive adhesive layer at 23° C. is 0.1 to 5.0 MPa, and the T-peeling strength between the pressure-sensitive adhesive layer and the resin composition layer is 0.1 to 5 N/20 mm at 23° C. and 300 mm/min.Type: GrantFiled: December 12, 2012Date of Patent: February 10, 2015Assignee: Nitto Denko CorporationInventors: Hiroyuki Senzai, Shumpei Tanaka, Koji Mizuno
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Publication number: 20150035133Abstract: A method is described for making electronic modules includes molding onto a substrate panel a matrix panel defining a plurality of cavities, attaching semiconductor die to the substrate panel in respective cavities of the molded matrix panel, electrically connecting the semiconductor die to the substrate panel, affixing a cover to the molded matrix panel to form an electronic module assembly, mounting the electronic module assembly on a carrier tape, and separating the electronic module assembly into individual electronic modules. An electronic module is described which includes a substrate, a wall member molded onto the substrate, the molded wall member defining a cavity, at least one semiconductor die attached to the substrate in the cavity and electrically connected to the substrate, and a cover affixed to the molded wall member over the cavity.Type: ApplicationFiled: August 2, 2013Publication date: February 5, 2015Applicant: STMicroelectronics Pte Ltd.Inventor: Wing Shenq Wong
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Patent number: 8936970Abstract: A light-emitting structure comprises a semiconductor light-emitting element which includes a first connection point and a second connection point. The light-emitting structure further includes a first electrode electrically connected to the first connection point, and a second electrode electrically connected the second connection point. The first electrode and the second electrode can form a concave on which the semiconductor light-emitting element is located.Type: GrantFiled: September 8, 2011Date of Patent: January 20, 2015Assignee: Epistar CorporationInventor: Chia-Liang Hsu
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Patent number: 8916453Abstract: A semiconductor wafer includes a first main face and a second main face opposite to the first main face and a number of semiconductor chip regions. The wafer is diced along dicing streets to separate the semiconductor chip regions from each other. At least one metal layer is formed on the first main face of each one of the semiconductor chip regions.Type: GrantFiled: November 21, 2012Date of Patent: December 23, 2014Assignee: Infineon Technologies AGInventors: Gopalakrishnan Trichy Rengarajan, Armin Tilke
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Patent number: 8916420Abstract: An embodiment provides a chip package including a substrate, a cavity extending downward from an upper surface of the substrate, a metal layer overlying the substrate and conformally covering a sidewall and a bottom portion of the cavity, a chip having an upper surface and located on the metal layer in the cavity, wherein the upper surface is not lower than an upper surface of the metal layer outside of the cavity, and the protective layer covering the chip.Type: GrantFiled: May 22, 2013Date of Patent: December 23, 2014Inventors: Baw-Ching Perng, Chun-Lung Huang
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Patent number: 8912669Abstract: Provided are a sealing resin sheet, wherein a clean, smooth and flat ground surface is obtained by grinding after resin sealing, a method for producing an electronic component package using the same, and an electronic component package obtained by the production method. The present invention provides a sealing resin sheet, wherein a ground surface has a mean surface roughness Ra of 1 ?m or less when grinding is performed under conditions of a grind bite peripheral velocity of 1000 m/minute, a feed pitch of 100 ?m and a cut depth of 10 ?m after a heat curing treatment is performed at 180° C. for 1 hour; and a Shore D hardness at 100° C. after the heat curing treatment is 70 or more.Type: GrantFiled: July 3, 2013Date of Patent: December 16, 2014Assignee: Nitto Denko CorporationInventors: Eiji Toyoda, Yusaku Shimizu
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Patent number: 8906745Abstract: A method of dividing a semiconductor wafer in which a sheet of deformable material engaging the metal layer side of the wafer has pressurized fluid applied thereto to cause the metal layer to break at the locations of wafer scribe streets.Type: GrantFiled: May 9, 2014Date of Patent: December 9, 2014Assignee: Micro Processing Technology, Inc.Inventors: Paul C. Lindsey, Jr., Darrell Foote
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Patent number: 8906743Abstract: Methods for making semiconductor devices are disclosed herein. A method configured in accordance with a particular embodiment includes forming a spacer material on an encapsulant such that the encapsulant separates the spacer material from an active surface of a semiconductor device and at least one interconnect projecting away from the active surface. The method further includes molding the encapsulant such that at least a portion of the interconnect extends through the encapsulant and into the spacer material. The interconnect can include a contact surface that is substantially co-planar with the active surface of the semiconductor device for providing an electrical connection with the semiconductor device.Type: GrantFiled: January 11, 2013Date of Patent: December 9, 2014Assignee: Micron Technology, Inc.Inventors: Chan Yoo, Todd O. Bolken
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Patent number: 8900925Abstract: In a method for manufacturing a diode, a semiconductor crystal wafer is used to produce a p-n or n-p junction, which extends in planar fashion across the top side of a semiconductor crystal wafer. Separation edges form perpendicularly to the top side of the semiconductor crystal wafer, which edges extend across the p-n or n-p junction. The separation of the semiconductor crystal wafer is achieved in that, starting from a disturbance, a fissure is propagated by local heating and local cooling of the semiconductor crystal wafer. The separation fissure thus formed extends along crystal planes of the semiconductor crystal, which avoids the formation of defects in the area of the p-n or n-p junction.Type: GrantFiled: June 19, 2013Date of Patent: December 2, 2014Assignee: Robert Bosch GmbHInventors: Richard Spitz, Alfred Goerlach, Robert Kolb
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Publication number: 20140346642Abstract: A surface mountable electronic component free of connecting wires comprises a semiconductor substrate, wherein a plurality of solderable connection areas are arranged at the underside of the component. The component comprises at least one recess is formed in the region of the edges bounding the underside; and in that the recess is covered with an insulating layer. A method for the manufacture of such a component comprises the formation of corresponding recesses.Type: ApplicationFiled: September 6, 2012Publication date: November 27, 2014Applicant: VISHAY SEMICONDUCTOR GMBHInventor: Claus Mähner
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Patent number: 8895345Abstract: The present invention provides a dicing method that achieves excellent dicing properties at low costs by removing a metal film through a metal processing operation with a diamond tool and then performing pulse laser beam irradiation. The dicing method is a method of dicing a substrate to be processed, devices being formed in the substrate to be processed, a metal film being formed on one surface of the substrate to be processed.Type: GrantFiled: June 13, 2011Date of Patent: November 25, 2014Assignee: Toshiba Kikai Kabushiki KaishaInventor: Takanobu Akiyama
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Patent number: 8895363Abstract: Consistent with an example embodiment, there is a method for assembling a wafer level chip scale processed (WLCSP) device from a wafer substrate, the method comprises grinding the back-side of the wafer substrate to a prescribed thickness. A plurality of trenches is sawed along a plurality of device die boundaries on a back-side surface of the wafer, the trenches having a bevel profile. The plurality of trenches is etched until the bevel profile of the plurality of trenches is rounded.Type: GrantFiled: March 15, 2013Date of Patent: November 25, 2014Assignee: NXP B.V.Inventors: Hartmut Buenning, Sascha Moeller, Guido Albermann, Thomas Rohleder, Michael Zernack
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Patent number: 8890292Abstract: A method for manufacturing a semiconductor device includes forming at least one stripe-shaped protection film over a multilayer film in a scribe region of a semiconductor substrate having a plurality of semiconductor element regions formed therein, the protection film having a thickness larger in a center portion thereof than at an end surface thereof and being made of a member which transmits a laser beam, and removing the multilayer film in the scribe region by irradiating the protection film with a laser beam.Type: GrantFiled: September 17, 2013Date of Patent: November 18, 2014Assignee: Fujitsu Semiconductor LimitedInventor: Naoyuki Watanabe
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Patent number: 8883615Abstract: Approaches for cleaning a wafer during hybrid laser scribing and plasma etching wafer dicing processes are described. In an example, a method of dicing a semiconductor wafer having a front surface having a plurality of integrated circuits thereon involves forming an underfill material layer between and covering metal pillar/solder bump pairs of the integrated circuits. The method also involves forming a mask layer on the underfill material layer. The method also involves laser scribing mask layer and the underfill material layer to provide scribe lines exposing portions of the semiconductor wafer between the integrated circuits. The method also involves removing the mask layer. The method also involves, subsequent to removing the mask layer, plasma etching the semiconductor wafer through the scribe lines to singulate the integrated circuits, wherein the second insulating layer protects the integrated circuits during at least a portion of the plasma etching.Type: GrantFiled: August 8, 2014Date of Patent: November 11, 2014Assignee: Applied Materials, Inc.Inventors: James Matthew Holden, Wei-Sheng Lei, James S. Papanu, Ajay Kumar
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Patent number: 8871614Abstract: A semiconductor die and a related method of processing a semiconductor wafer are disclosed in which a first interlayer insulator having a recess region of varying configuration and defining a scribe line is associated with at least one protective layer formed with a characterizing inclined side surface.Type: GrantFiled: December 7, 2010Date of Patent: October 28, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Sun-joon Kim, Hyeoung-won Seo
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Patent number: 8841170Abstract: A method of singulating semiconductor devices in the close proximity to active structures by controlling interface charge of semiconductor device sidewalls is provided that includes forming a scribe on a surface of a semiconductor devices, where the scribe is within 5 degrees of a crystal lattice direction of the semiconductor device, cleaving the semiconductor device along the scribe, where the devices are separated, using a coating process to coat the sidewalls of the cleaved semiconductor device with a passivation material, where the passivation material is disposed to provide a fixed charge density at a semiconductor interface of the sidewalls, and where the fixed charge density interacts with charge carriers in the bulk of the material.Type: GrantFiled: October 21, 2011Date of Patent: September 23, 2014Assignees: The Regents of the University of California, Naval Research LaboratoryInventors: Vitaliy Fadeyev, Hartmut F. W. Sadrozinski, Marc Christophersen, Bernard F. Phlips
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Publication number: 20140264784Abstract: Consistent with an example embodiment, there is a semiconductor device having a front-side surface, back-side surface, and vertical surfaces. The semiconductor device comprises an active device die having electrical contacts on the front-side surface. A metal shield is plated on the back-side surface and the vertical surfaces of the active device die. Conductive links connect the plated metal shield to selected electrical contacts on the front-side surface.Type: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Inventors: Chung Hsiung Ho, Wen Hung Huang, Wen-Jen Kuo, W.H. Lin, ChihLi Huang, Pao Tung Pan, I. Pin Chen, Li Ching Wang
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Patent number: 8835283Abstract: A fabrication method for producing semiconductor chips with enhanced die strength comprises following steps: forming a semiconductor wafer with enhanced die strength by comprising the substrate, the active layer on the front side of the substrate and the backside metal layer on the backside of the substrate, wherein at least one integrated circuit forms in the active layer; forming a protection layer on a front side of the semiconductor wafer; dicing the semiconductor wafer by at least one laser dicing process and removing the laser dicing residues and removing said protection layer by at least one etching process, whereby plural semiconductor chips with enhanced die strength are produced, and wherein the backside metal layer of said semiconductor chip fully covers the backside of said semiconductor chip after dicing.Type: GrantFiled: August 20, 2013Date of Patent: September 16, 2014Assignee: WIN Semiconductors Corp.Inventor: Chang-Hwang Hua
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Publication number: 20140248745Abstract: An embodiment 3DIC device includes a semiconductor chip, a die, and a polymer. The semiconductor chip includes a semiconductor substrate, wherein the semiconductor substrate comprises a first edge, and a dielectric layer over the semiconductor substrate. The die is disposed over and bonded to the semiconductor chip. The polymer is molded onto the semiconductor chip and the die. The polymer includes a portion level with the dielectric layer, wherein the portion of the polymer comprises a second edge vertically aligned to the first edge of the semiconductor substrate and a third edge contacting the dielectric layer, wherein the second and the third edges are opposite edges of the portion of the polymer.Type: ApplicationFiled: May 12, 2014Publication date: September 4, 2014Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chih-Wei Wu, Szu Wei Lu, Jing-Cheng Lin, Shin-Puu Jeng, Chen-Hua Yu
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Patent number: 8822275Abstract: A composite wafer includes a molded wafer and a second wafer. The molded wafer includes a plurality of first components, and the second wafer includes a plurality of second components. The second wafer is combined with the molded wafer to form the composite wafer. At least one of the first components is aligned with at least one of the second components to form a multi-component element. The multi-component element is singulatable from the composite wafer.Type: GrantFiled: April 30, 2012Date of Patent: September 2, 2014Assignee: Hewlett-Packard Development Company, L.P.Inventors: Michael Renne Ty Tan, Georgios Panotopoulos, Paul Kessler Rosenberg, Sagi Varghese Mathai, Wayne Victor Sorin, Susant K Patra
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Patent number: 8822325Abstract: A chip package and a fabrication method thereof are provided according to an embodiment of the invention. The chip package includes a semiconductor substrate containing a chip and having a device area and a peripheral bonding pad area. A plurality of conductive pads is disposed at the peripheral bonding pad area and a passivation layer is formed over the semiconductor substrate to expose the conductive pads. An insulating protective layer is formed on the passivation layer at the device area. A packaging layer is disposed over the insulating protective layer to expose the conductive pads and the passivation layer at the peripheral bonding pad area. The method includes forming an insulating protective layer to cover a plurality of conductive pads during a cutting process and removing the insulating protective layer on the conductive pads through an opening of a packaging layer.Type: GrantFiled: August 2, 2013Date of Patent: September 2, 2014Inventors: Ching-Yu Ni, Chia-Ming Cheng, Nan-Chun Lin
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Patent number: 8815644Abstract: A wafer processing method for processing a wafer having a device area and a peripheral marginal area surrounding the device area. The method includes: (i) attaching an adhesive tape having an annular adhesive layer only in a peripheral area thereof to the front side of the wafer, whereby the front side of the wafer is fully covered with the adhesive tape and the annular adhesive layer is positioned to correspond to the peripheral marginal area of the wafer, without the annular adhesive layer making contact with the device area; (ii) applying a laser beam to the wafer along division lines to thereby form a plurality of modified layers inside the wafer; (iii) attaching a protective tape to the back side of the wafer and peeling the adhesive tape from the front side of the wafer; and (iv) applying an external force to the wafer to divide the wafer.Type: GrantFiled: April 25, 2013Date of Patent: August 26, 2014Assignee: Disco CorporationInventor: Karl Priewasser