Patent application number | Description | Published |
20080203388 | Apparatus and method for detection of edge damages - Embodiments of the invention enable detection of edge damages in semiconductor devices. To this purpose, one or more continuity structures may be provided, where each structure comprises an undulating arrangement disposed between active circuits of the semiconductor device and a perimeter of the metallization layers. The continuity structure(s) forms one or more conductive paths intersecting a plurality of metallization layers in the semiconductor device. A relative change in an electrical characteristic of the continuity structure(s) is monitored to ascertain whether or not an edge damage is present. | 08-28-2008 |
20090057842 | SELECTIVE REMOVAL OF ON-DIE REDISTRIBUTION INTERCONNECTS FROM SCRIBE-LINES - Selective removal of on-die redistribution interconnect material from a scribe-line region is generally described. In one example, an apparatus includes a first semiconductor die having a redistribution layer comprising redistribution dielectric and one or more redistribution metal interconnects, a second semiconductor die coupled with the first semiconductor die, the second semiconductor die having a redistribution layer comprising redistribution dielectric and one or more redistribution metal interconnects, and a scribe-line region disposed between the first semiconductor die and second semiconductor die, the scribe-line region having a majority or substantially all of redistribution dielectric or redistribution metal, or suitable combinations thereof, selectively removed to enable die singulation through the scribe-line region. | 03-05-2009 |
20090058540 | Microelectronic Die Having CMOS Ring Oscillator Thereon And Method of Using Same - A microelectronic die including a CMOS ring oscillator thereon, and a method of using the same. The microelectronic die includes: a die substrate; and a plurality of CMOS ring oscillators on the die substrate, the ring oscillators being disposed at regions of the die substrate that are adapted to exhibit differing strain responses to package-induced stress with respect to one another. | 03-05-2009 |
20110103170 | NOVEL FUSE PROGRAMMING SCHEMES FOR ROBUST YIELD - An embodiment of the present invention is a technique to program a fuse. A program circuit generates first and second currents to program the fuse. The second current is higher than the first current. A control circuit controls generating the first and second currents in succession. | 05-05-2011 |
20110156801 | TAMPER RESISTANT FUSE DESIGN - A tamper resistant fuse design is generally presented. In this regard, an apparatus is introduced comprising a plurality of fuses in an integrated circuit device to store values and a plurality of resistors in parallel to the fuses, wherein each fuse includes a parallel resistor to provide a potential dissipation path around the fuse. Other embodiments are also described and claimed. | 06-30-2011 |
20110247872 | DEBOND INTERCONNECT STRUCTURES - The present subject matter relates to the field of fabricating microelectronic devices. In at least one embodiment, the present subject matter relates to forming an interconnect that has a portion thereof which becomes debonded from the microelectronic device during cooling after attachment to an external device. The debonded portion allows the interconnect to flex and absorb stress. | 10-13-2011 |
20120007242 | INTERCONNECTS HAVING SEALING STRUCTURES TO ENABLE SELECTIVE METAL CAPPING LAYERS - Methods of fabricating a capped interconnect for a microelectronic device which includes a sealing feature for any gaps between a capping layer and an interconnect and structures formed therefrom. The sealing features improve encapsulation of the interconnect, which substantially reduces or prevents electromigration and/or diffusion of conductive material from the capped interconnect. | 01-12-2012 |
20140106560 | DEBOND INTERCONNECT STRUCTURES - The present subject matter relates to the field of fabricating microelectronic devices. In at least one embodiment, the present subject matter relates to forming an interconnect that has a portion thereof which becomes debonded from the microelectronic device during cooling after attachment to an external device. The debonded portion allows the interconnect to flex and absorb stress. | 04-17-2014 |
Patent application number | Description | Published |
20090107836 | Closed Contact Electroplating Cup Assembly - Embodiments of a closed-contact electroplating cup are disclosed. One embodiment comprises a cup bottom comprising an opening, and a seal disposed on the cup bottom around the opening. The seal comprises a wafer-contacting peak located substantially at an inner edge of the seal. The embodiment also comprises an electrical contact structure disposed over a portion of the seal, wherein the electrical contact structure comprises an outer ring and a plurality of contacts extending inwardly from the outer ring, and wherein each contact has a generally flat wafer-contacting surface. The embodiment further comprises a wafer-centering mechanism configured to center a wafer in the cup. | 04-30-2009 |
20100032310 | Method and apparatus for electroplating - An apparatus for electroplating a layer of metal on the surface of a wafer includes an ionically resistive ionically permeable element located in close proximity of the wafer (preferably within 5 mm of the wafer surface) which serves to modulate ionic current at the wafer surface, and a second cathode configured to divert a portion of current from the wafer surface. The ionically resistive ionically permeable element in a preferred embodiment is a disk made of a resistive material having a plurality of perforations formed therein, such that perforations do not form communicating channels within the body of the disk. The provided configuration effectively redistributes ionic current in the plating system allowing plating of uniform metal layers and mitigating the terminal effect. | 02-11-2010 |
20100155254 | WAFER ELECTROPLATING APPARATUS FOR REDUCING EDGE DEFECTS - Methods, apparatuses, and various apparatus components, such as base plates, lipseals, and contact ring assemblies are provided for reducing contamination of the contact area in the apparatuses. Contamination may happen during removal of semiconductor wafers from apparatuses after the electroplating process. In certain embodiments, a base plate with a hydrophobic coating, such as polyamide-imide (PAI) and sometimes polytetrafluoroethylene (PTFE), are used. Further, contact tips of the contact ring assembly may be positioned further away from the sealing lip of the lipseal. In certain embodiments, a portion of the contact ring assembly and/or the lipseal also include hydrophobic coatings. | 06-24-2010 |
20110233056 | ELECTROPLATING CUP ASSEMBLY - Embodiments of a closed-contact electroplating cup are disclosed. One embodiment comprises a cup bottom comprising an opening, and a seal disposed on the cup bottom around the opening. The seal comprises a wafer-contacting peak located substantially at an inner edge of the seal. The embodiment also comprises an electrical contact structure disposed over a portion of the seal, wherein the electrical contact structure comprises an outer ring and a plurality of contacts extending inwardly from the outer ring, and wherein each contact has a generally flat wafer-contacting surface. The embodiment further comprises a wafer-centering mechanism configured to center a wafer in the cup. | 09-29-2011 |
20130137242 | DYNAMIC CURRENT DISTRIBUTION CONTROL APPARATUS AND METHOD FOR WAFER ELECTROPLATING - Methods, systems, and apparatus for plating a metal onto a work piece are described. In one aspect, an apparatus includes a plating chamber, a substrate holder, an anode chamber housing an anode, an ionically resistive ionically permeable element positioned between a substrate and the anode chamber during electroplating, an auxiliary cathode located between the anode and the ionically resistive ionically permeable element, and an insulating shield with an opening in its central region. The insulating shield may be movable with respect to the ionically resistive ionically permeable element to vary a distance between the shield and the ionically resistive ionically permeable element during electroplating. | 05-30-2013 |
20130327650 | METHOD AND APPARATUS FOR ELECTROPLATING - An apparatus for electroplating a layer of metal onto the surface of a wafer includes an ionically resistive ionically permeable element located in close proximity of the wafer and an auxiliary cathode located between the anode and the ionically resistive ionically permeable element. The ionically resistive ionically permeable element serves to modulate ionic current at the wafer surface. The auxiliary cathode is configured to shape the current distribution from the anode. The provided configuration effectively redistributes ionic current in the plating system allowing plating of uniform metal layers and mitigating the terminal effect. | 12-12-2013 |
Patent application number | Description | Published |
20100044236 | METHOD AND APPARATUS FOR ELECTROPLATING - An apparatus for electroplating a layer of metal onto the surface of a wafer includes an ionically resistive ionically permeable element located in close proximity of the wafer and an auxiliary cathode located between the anode and the ionically resistive ionically permeable element. The ionically resistive ionically permeable element serves to modulate ionic current at the wafer surface. The auxiliary cathode is configured to shape the current distribution from the anode. The provided configuration effectively redistributes ionic current in the plating system allowing plating of uniform metal layers and mitigating the terminal effect. | 02-25-2010 |
20100116672 | METHOD AND APPARATUS FOR ELECTROPLATING - An apparatus for electroplating a layer of metal onto the surface of a wafer includes an ionically resistive ionically permeable element located in close proximity of the wafer and an auxiliary cathode located between the anode and the ionically resistive ionically permeable element. The ionically resistive ionically permeable element serves to modulate ionic current at the wafer surface. The auxiliary cathode is configured to shape the current distribution from the anode. The provided configuration effectively redistributes ionic current in the plating system allowing plating of uniform metal layers and mitigating the terminal effect. | 05-13-2010 |
20100147679 | Electroplating Apparatus with Vented Electrolyte Manifold - Embodiments related to increasing a uniformity of an electroplated film are disclosed. For example, one disclosed embodiment provides an electroplating apparatus comprising a plating chamber, a work piece holder, a cathode contact configured to electrically contact a work piece, and an anode contact configured to electrically contact an anode disposed in the plating chamber. A diffusing barrier is disposed between the cathode contact and the anode contact to provide a uniform electrolyte flow to the work piece, and electrolyte delivery and return paths are provided for delivering electrolyte to and away from the plating chamber. Additionally, a vented electrolyte manifold is disposed in the electrolyte delivery path immediately upstream of the plating chamber, the vented electrolyte manifold comprising one or more electrolyte delivery openings that open to the plating chamber and one or more vents that open to a location other than the plating chamber. | 06-17-2010 |
20120061246 | FRONT REFERENCED ANODE - Apparatus and methods for electroplating are described. Apparatus described herein include anode supports including positioning mechanisms that maintain a consistent distance between the surface of the wafer and the surface of a consumable anode during plating. Greater uniformity control is achieved. | 03-15-2012 |
20120181170 | WAFER ELECTROPLATING APPARATUS FOR REDUCING EDGE DEFECTS - Methods, apparatuses, and various apparatus components, such as base plates, lipseals, and contact ring assemblies are provided for reducing contamination of the contact area in the apparatuses. Contamination may happen during removal of semiconductor wafers from apparatuses after the electroplating process. In certain embodiments, a base plate with a hydrophobic coating, such as polyamide-imide (PAI) and sometimes polytetrafluoroethylene (PTFE), are used. Further, contact tips of the contact ring assembly may be positioned further away from the sealing lip of the lipseal. In certain embodiments, a portion of the contact ring assembly and/or the lipseal also include hydrophobic coatings. | 07-19-2012 |
20130062197 | PLATING CUP WITH CONTOURED CUP BOTTOM - Disclosed herein are cups for engaging wafers during electroplating in clamshell assemblies and supplying electrical current to the wafers during electroplating. The cup can comprise an elastomeric seal disposed on the cup and configured to engage the wafer during electroplating, where upon engagement the elastomeric seal substantially excludes plating solution from a peripheral region of the wafer, and where the elastomeric seal and the cup are annular in shape, and comprise one or more contact elements for supplying electrical current to the wafer during electroplating, the one or more contact elements attached to and extending inwardly towards a center of the cup from a metal strip disposed over the elastomeric seal. A notch area of the cup can have a protrusion or an insulated portion on a portion of a bottom surface of the cup where the notch area is aligned with a notch in the wafer. | 03-14-2013 |