Abstract:
[Problem] The purpose of the present invention is to provide an etching agent for a process for etching copper or a copper alloy from an electronic substrate that includes both nickel, and copper or a copper alloy, wherein said etching agent foams little during use and can highly selectively etch copper or a copper alloy. [Solution] An etching agent used in a process for selectively etching copper or a copper alloy from an electronic substrate that includes both nickel, and copper or a copper alloy, said etching agent for copper or a copper alloy having as essential components: a chain-like alkanolamine (A); a chelating agent (B) having an acid group in the molecules thereof; and hydrogen peroxide (C).
Abstract:
An electronic assembly (150) includes a workpiece (110), a through substrate via (TSV) die (120) including a substrate (105) and a plurality of TSVs (115), a topside (121) and a bottomside (122) having TSV connectors (113) thereon. The TSV die is attached to the workpiece with its topside on the workpiece. A heat spreader (130) having an inner open window (131) is on the bottomside of the TSV die. Bonding features (161) are coupled to the TSV connectors or include the TSV connectors themselves. The bonding features protrude from the inner open window to a height above a height of the top (132) of the heat spreader that allows a top die to be bonded thereto.
Abstract:
Eine Anschlusskontaktschicht (4) ist zwischen Halbleiterkörpern (1, 2) angeordnet. In dem zweiten Halbleiterkörper (2) befindet sich eine Aussparung. Eine oberseitige Anschlussschicht (7) reicht bis zu der Aussparung,in der eine Metallisierung (10) vorhanden ist, die die Anschlusskontaktschicht (4) mit der Anschlussschicht (7) elektrisch leitend verbindet. In der Aussparung ist ein Polymer (8) oder eine weitere Metallisierung vorhanden.
Abstract:
A method for fabricating a through interconnect on a semiconductor substrate includes the steps of forming a via on a first side of the substrate part way through the substrate, forming an electrically insulating layer on the first side and in the via, forming an electrically conductive layer at least partially lining the via, forming a first contact on the conductive layer in the via, and thinning the substrate from a second side at least to the insulating layer in the via. The method can also include the step of forming a second contact on a second side of the substrate in electrical contact with the first contact. The method can be performed on a semiconductor wafer to form a wafer scale interconnect component. In addition, the interconnect component can be used to construct semiconductor systems such as a light emitting diode (LED) systems.
Abstract:
Trench capacitors are formed by depositing insulating layers (26, 30) and conductive layers (28, 32) and using chemical-mechanical polishing. The capacitors are connected to vias (48) for integration with other devices. The wafer (20) comprising the capacitors and vias is bonded to another wafer (74).
Abstract:
A packaged electronic device (100) includes a leadframe (130) including a die pad (135), a first, second, and third lead pin (131, 132) surrounding the die pad. An IC die (105) is assembled in a face-up configuration on the lead frame. The IC die includes a substrate (104) having an active top surface (118) and a bottom surface (119), wherein the top surface includes integrated circuitry (120) including an input pad, an output pad, a power supply pad, and a ground pad, and a plurality of through-substrate vias (TSVs) (110) including an electrically conductive filler material (111) and a dielectric liner (112). The TSVs couple the input pad (116) to the first lead pin, the output pad to the second lead pin, the power supply pad (115) to a third lead pin or a portion of the die pad. A fourth TSV (110(c)-(f)) couples pads (117(a)-(d)) coupled to the ground node of the IC to the die pad or a portion of the die pad for a split die pad.
Abstract:
Die Erfindung betrifft ein Verfahren zum Bonden einer Vielzahl von Einzelchips (9) auf einen Basiswafer, (1) wobei die Einzelchips in mehreren Schichten über dem Basiswafer gestapelt werden und zwischen den vertikal benachbarten Einzelchips sowie dem Basiswafer und der dem Basiswafer vertikal benachbarten Schicht von Einzelchips elektrisch leitfähige Verbindungen (7) bestehen, mit folgenden Schritten in der genannten Reihenfolge: a) Fixieren des Basiswafers auf einem Träger, (5) b) Platzieren mindestens einer Schicht von Chips in definierten Positionen auf dem Basiswafer und c) Wärmebehandlung der Chips auf dem mit dem Träger fixierten Basiswafer.
Abstract:
A semiconductor component includes a semiconductor substrate having a substrate contact, and a through wire interconnect (TWI) attached to the substrate contact The through wire interconnect provides a multi level interconnect having contacts on opposing first and second sides of the semiconductor substrate The through wire interconnect includes a via through the substrate contact and the substrate, a wire in the via having a bonded connection with the substrate contact, a first contact on the wire proximate to the first side, and a second contact on the wire proximate to the second side The through wire interconnect also includes a polymer layer which partially encapsulates the through wire interconnect while leaving the first contact exposed The semiconductor component can be used to fabricate stacked systems module systems and test systems A method for fabricating the semiconductor component can include a film assisted molding process for forming the polymer layer.
Abstract:
A method of using coated and/or magnetic particles to deposit structures including solder joints, bumps, vias, bond rings, and the like. The particles may be coated with a solderable material. For. solder joints, after reflow the solder material may comprise unmelted particles in a matrix, thereby increasing the strength of the joint and decreasing the pitch of an array of joints. The particle and coating may form a higher melting point alloy, permitting multiple subsequent reflow steps. The particles and/or the coating may be magnetic. External magnetic fields may be applied during deposition to precisely control the particle loading and deposition location. Elements with incompatible electropotentials may thereby be electrodeposited in a single step. Using such fields permits the fill of high aspect ratio structures such as vias without requiring complete seed metallization of the structure. Also, a catalyst consisting of a magnetic particle coated with a catalytic material, optionally including an intermediate layer.