Patent application number | Description | Published |
20080311727 | METHOD OF CUTTING A WAFER - In a method of cutting a wafer, a supporting member is attached to an upper surface of the wafer on which semiconductor chips are formed. An opening is formed at a lower surface of the wafer along a scribe lane of the wafer. The lower surface of the wafer may be plasma-etched to reduce a thickness of the wafer. A tensile tape may be attached to the lower surface of the wafer. Here, the tensile tape includes sequentially stacked tensile films having different tensile modules. The supporting member is then removed. The tensile tape is cooled to increase the tensile modules between the tensile films. The tensile tape is tensed until the tensile films are cut using the tensile modules difference to separate the tensile tape from the semiconductor chips. Thus, the lower surface of the wafer may be plasma-etched without using an etching mask. | 12-18-2008 |
20080315408 | Semiconductor package, semiconductor package module including the semiconductor package, and methods of fabricating the same - Provided are a semiconductor package and a semiconductor package module including the same. The semiconductor package may include a plurality of semiconductor chips, a plurality of leads connected to pads of the semiconductor chips and externally exposed, wherein the plurality of leads may be classified into a plurality of pin groups, and the plurality of semiconductor chips may be classified into a plurality of chip groups, and the pads of the semiconductor chips of like chip groups may be connected to the leads of like pin groups. | 12-25-2008 |
20090200362 | METHOD OF MANUFACTURING A SEMICONDUCTOR PACKAGE - In a lead-free solder, a semiconductor package and a method of manufacturing the semiconductor package, the lead-free solder includes about 3.5 percent by weight to about 6 percent by weight of silver, about 0.05 percent by weight to about 0.5 percent by weight of copper and a remainder of tin. The lead-free solder is employed in the semiconductor package. The lead-free solder has high impact resistance and high heat resistance to reduce failures of the semiconductor package. | 08-13-2009 |
20100071854 | APPARATUS AND METHOD OF MANUFACTURING A SEMICONDUCTOR PACKAGE - An apparatus and a method of manufacturing a semiconductor package are provided. A die attaching process and/or a wire bonding process for first and second surfaces of a lead frame are sequentially performed inside one equipment. Thus, time required for a semiconductor packaging process decreases and yield is increased. | 03-25-2010 |
20110110062 | Stack-type semiconductor device having chips having different backside structure and electronic apparatus including the same - A stack-type semiconductor device including semiconductor chips having different backside structures and an electronic apparatus including the stack-type semiconductor device include: a base frame for a semiconductor device; a first semiconductor chip that is mounted on the base frame and has a bottom surface having a first surface roughness; and a second semiconductor chip that is mounted on the first semiconductor chip and has a bottom surface having a second surface roughness, wherein the second surface roughness is greater than the first surface roughness by 1.2 nm or more. The stack-type semiconductor device is manufactured to be thin while cracking of the first semiconductor chip is prevented. In addition, changes in data caused by charge loss resulting from diffusion of metal ions, which can occur when a stack-type semiconductor device is a memory device, is prevented. | 05-12-2011 |
20110136334 | METHOD OF FORMING AT LEAST ONE BONDING STRUCTURE - A method of forming at least one bonding structure may be provided. A ball may be formed on the front end of a wire outside a capillary. The capillary may be moved downwardly to form a preliminary compressed ball on a first pad using the ball. The capillary may be moved upwardly to form a neck portion on the preliminary compressed ball using the preliminary compressed ball and the wire. The capillary may be moved obliquely and downwardly to form a compressed ball. The capillary may extend the wire from the compressed ball to a second pad. | 06-09-2011 |
20110293903 | WAVE SOLDERING APPARATUS TO APPLY BUOYANCY, SOLDERING METHOD, AND METHOD OF FORMING SOLDER BUMPS FOR FLIP CHIPS ON A SUBSTRATE - The present general inventive concept includes a wave soldering apparatus, a soldering method using the wave soldering apparatus, and a method of forming a solder bump for a flip chip. The wave soldering apparatus includes a solder bath containing a molten solder. A nozzle is arranged in the solder bath so as to upwardly spout the molten solder toward a bottom surface of a substrate that passes an upper portion of the solder bath. A liquid that is separated from the molten solder is contained in a downstream area of the solder bath, and buoyancy is applied to the molten solder, which is adhered to the substrate, by the liquid. Since the amount of the molten solder adhered to the substrate is increased by the buoyancy, it is possible to form the solder bump to have a height sufficient to use it as a flip chip. | 12-01-2011 |
20110318887 | METHOD OF MOLDING SEMICONDUCTOR PACKAGE - A method of molding a semiconductor package includes coating liquid molding resin or disposing solid molding resin on a top surface of a semiconductor chip arranged on a substrate. The solid molding resin may include powdered molding resin or sheet-type molding resin. In a case where liquid molding resin is coated on the top surface of the semiconductor chip, the substrate is mounted between a lower molding and an upper molding, and then melted molding resin is filled in a space between the lower molding and the upper molding. In a case where the solid molding resin is disposed on the top surface of the semiconductor chip, the substrate is mounted on a lower mold and then the solid molding resin is heated and melts into liquid molding resin having flowability. An upper mold is mounted on the lower mold, and melted molding resin is filled in a space between the lower molding and the upper molding. | 12-29-2011 |
20130203220 | METHOD OF MOLDING SEMICONDUCTOR PACKAGE - A method of molding a semiconductor package includes coating liquid molding resin or disposing solid molding resin on a top surface of a semiconductor chip arranged on a substrate. The solid molding resin may include powdered molding resin or sheet-type molding resin. In a case where liquid molding resin is coated on the top surface of the semiconductor chip, the substrate is mounted between a lower molding and an upper molding, and then melted molding resin is filled in a space between the lower molding and the upper molding. In a case where the solid molding resin is disposed on the top surface of the semiconductor chip, the substrate is mounted on a lower mold and then the solid molding resin is heated and melts into liquid molding resin having flowability. An upper mold is mounted on the lower mold, and melted molding resin is filled in a space between the lower molding and the upper molding. | 08-08-2013 |
20140242752 | METHOD OF FABRICATING SEMICONDUCTOR PACKAGE - A method of fabricating a semiconductor package includes providing a wafer which includes an upper area having through silicon vias (TSVs) and a lower area not having the TSVs; mounting a semiconductor chip on the upper area of the wafer; forming a passivation layer to a predetermined thickness to cover the semiconductor chip; exposing the TSVs by removing the lower area of the wafer in a state where no support is attached to the wafer; and exposing a top surface of the semiconductor chip by partially removing the passivation layer. | 08-28-2014 |