Patent application number | Description | Published |
20080211093 | Semiconductor device having conductive bumps and fabrication method thereof - A semiconductor device having conductive bumps and a fabrication method thereof is proposed. The fabrication method includes the steps of forming a first metallic layer on a substrate having solder pads and a passivation layer formed thereon, and electrically connecting it to the solder pads; applying a second covering layer over exposed parts of the first metallic layer; subsequently, forming a second metallic layer on the second covering layer, and electrically connecting it to the exposed parts of the first metallic layer; applying a third covering layer, and forming openings for exposing parts of the second metallic layer to form thereon a conductive bump having a metallic standoff and a solder material. The covering layers and the metallic layers can provide a buffering effect for effectively absorbing the thermal stress imposed on the conductive bumps to prevent delamination caused by the UBM layers. | 09-04-2008 |
20080230913 | Stackable semiconductor device and fabrication method thereof - The invention provides a stackable semiconductor device and a fabrication method thereof, including providing a wafer having a plurality of dies mounted thereon, both the die and the wafer having an active surface and a non-active surface opposing one another respectively, wherein each die has a plurality of solder pads formed on the active surface thereof and a groove formed between adjacent solder pads to form a first metal layer therein that is electrically connected to the solder pads; subsequently thinning the non-active surface of the wafer to where the grooves are located to expose the first metal layer therefrom, and forming a second metal layer on the non-active surface of the wafer for electrically connecting with the first metal layer; and separating the dies to form a plurality of stackable semiconductor devices. Thereby, the first and second metal layers formed on the active surface and the non-active surface of the semiconductor device can be stacked and connected to constitute a multi-die stack structure, thereby increasing integration without increasing the area of the stacked dies. Further, the problems known in the prior art of poor electrical connection, complicated manufacturing process and increased cost as a result of using wire bonding and TSV can be avoided. | 09-25-2008 |
20080296716 | Sensor semiconductor device and manufacturing method thereof - A sensor semiconductor device and a manufacturing method thereof are disclosed. The method includes: providing a light-permeable carrier board with a plurality of metallic circuits; electrically connecting the metallic circuits to a plurality of sensor chips through conductive bumps formed on the bond pads of the sensor chips, wherein the sensor chips have been previously subjected to thinning and chip probing; filling a first dielectric layer between the sensor chips to cover the metallic circuits and peripheries of the sensor chips; forming a second dielectric layer on the sensor chips and the first dielectric layer; forming grooves between the sensor chips for exposing the metallic circuits such that a plurality of conductive traces electrically connected to the metallic circuits can be formed on the second dielectric layer; and singulating the sensor chips to form a plurality of sensor semiconductor devices. The present invention overcomes the drawbacks of breakage of trace connection due to a sharp angle formed at joints, poor electrical connection and chip damage due to an alignment error in cutting from the back of the wafer, as well as an increased cost due to multiple sputtering processes for forming traces. | 12-04-2008 |
20090008801 | Semiconductor device and method for fabricating the same - This invention discloses a semiconductor device and a method for fabricating the same. The method includes providing a flexible carrier board having a first surface and a second surface opposite thereto; forming a metal lead layer and a first heat dissipating metal layer on the first surface of the flexible carrier board, and forming a second heat dissipating metal layer on the second surface of the flexible carrier board; providing a chip having an active surface and an opposed non-active surface, wherein a plurality of solder pads are formed on the active surface of the chip, each of the solder pads has a metal bump formed thereon and corresponding in position to the metal lead layer, and heat dissipating bumps are formed between the metal bumps corresponding in position to the first heat dissipating metal layer. | 01-08-2009 |
20090102063 | Semiconductor package and method for fabricating the same - This invention provides a semiconductor package and a method for fabricating the same. The method includes: forming a first resist layer on a metal carrier; forming a plurality of openings penetrating the first resist layer; forming a conductive metal layer in the openings; removing the first resist layer; covering the metal carrier having the conductive metal layer with a dielectric layer; forming blind vias in the dielectric layer to expose a portion of the conductive metal layer; forming conductive circuit on the dielectric layer and conductive posts in the blind vias, such that the conductive circuit is electrically connected to the conductive metal layer via the conductive posts; electrically connecting at least one chip to the conductive circuit; forming an encapsulant for encapsulating the chip and the conductive circuit; and removing the metal carrier, thereby allowing a semiconductor package to be formed without a chip carrier. Given the conductive posts, both the conductive circuit and conductive metal layer are efficiently coupled to the dielectric layer to prevent delamination. Further, downsizing the blind vias facilitates the fabrication process and cuts the fabrication cost. | 04-23-2009 |
20110156180 | PACKAGE STRUCTURE HAVING MICRO-ELECTROMECHANICAL ELEMENT AND FABRICATION METHOD THEREOF - Proposed is a package structure having a micro-electromechanical (MEMS) element, including a chip having a plurality of electrical connecting pads and a MEMS element formed thereon; a lid disposed on the chip for covering the MEMS element; a stud bump disposed on each of the electrical connecting pads; an encapsulant formed on the chip with part of the stud bumps being exposed from the encapsulant; and a metal conductive layer formed on the encapsulant and connected to the stud bumps. The invention is characterized by completing the packaging process on the wafer directly to enable thinner and cheaper package structures to be fabricated within less time. This invention further provides a method for fabricating the package structure as described above. | 06-30-2011 |
20110157851 | PACKAGE STRUCTURE - A package structure includes a base body having a first encapsulant and a wiring layer embedded in and exposed from the first encapsulant. The wiring layer has a plurality of conductive traces and a plurality of first electrical contact pads. The first encapsulant has openings for exposing the first electrical contact pads, a chip electrically connected to the wiring layer, and a second encapsulant formed on the base body for covering the chip and the wiring layer, thereby providing an even surface for preventing the encapsulant from cracking when the chip is mounted. | 06-30-2011 |
20120001328 | CHIP-SIZED PACKAGE AND FABRICATION METHOD THEREOF - A chip-sized package and a fabrication method thereof are provided. The method includes forming a protection layer on an active surface of a chip and attaching a non-active surface of the chip to a carrier made of a hard material; performing a molding process and removing a protection layer from the chip; performing an RDL process to prevent problems as encountered in the prior art, such as softening of adhesive films, an encapsulant overflow, a pliable chip and chip deviation or contamination caused by directly adhering the active surface of the chip to the adhesive film that may even lead to inferior electrical contacts between a circuit layer and a plurality of chip bond pads during subsequent RDL process, and cause the package to be scraped. Further, the carrier employed in this invention can be repetitively used in the process to help reduce manufacturing costs. | 01-05-2012 |
20140183755 | SEMICONDUCTOR PACKAGE AND FABRICATION METHOD THEREOF - A semiconductor package is provided, which includes a carrier having a mounting area and at least a grounding pad; a substrate body having opposite first and second surfaces and a plurality of conductive vias each having a first end exposed from the first surface and a second end opposite to the first end, the substrate body being disposed on the mounting area of the carrier through the second surface thereof; a metal layer formed on the first surface of the substrate body and exposing the first ends of the conductive vias; a conductive body electrically connecting the metal layer and the grounding pad; and a semiconductor element disposed on the substrate body and electrically connected to the first ends of the conductive vias, thereby achieving an EMI shielding effect to prevent interference between electromagnetic waves or electrical signals of the substrate body and the semiconductor element. | 07-03-2014 |