摘要:
A circuit structure includes a semiconductor substrate, first and second metallic posts over the semiconductor substrate, an insulating layer over the semiconductor substrate and covering the first and second metallic posts, first and second bumps over the first and second metallic posts or over the insulating layer. The first and second metallic posts have a height of between 20 and 300 microns, with the ratio of the maximum horizontal dimension thereof to the height thereof being less than 4. The distance between the center of the first bump and the center of the second bump is between 10 and 250 microns.
摘要:
The invention provides a package type semiconductor device and a method of manufacturing the same where reliability and yield are enhanced without making a manufacturing process complex. A resin layer (6) and a supporting body (7) are formed on a front surface of a semiconductor substrate (2) formed with a pad electrode (4). Then, the resin layer (6) and the supporting body (7) are removed by etching so as to expose the pad electrode (4). By this etching, the supporting body (7) in two conductive terminal formation regions facing each other over a dicing line (x) and the supporting body in a region connecting with these regions therebetween are simultaneously removed to form an opening (10). Then, a metal layer is formed on the pad electrode (4) exposed in the opening, and a conductive terminal is further formed thereon. Lastly, dicing is performed along the dicing line to separate the semiconductor substrate in individual semiconductor dies.
摘要:
A device with a solder joint made of a copper contact pad ( 210 ) of certain area ( 202 ) and an alloy layer ( 301 ) metallurgically attached to the copper pad across the pad area. The alloy layer contains copper/tin alloys, which include Cu 6 Sn 5 intermetallic compound, and nickel/copper/tin alloys, which include (Ni,Cu) 6 Sn 5 intermetallic compound. A solder element ( 308 ) including tin is metallurgically attached to the alloy layer across the pad area. No fraction of the original thin nickel layer is left after the reflow process. Copper/tin alloys help to improve the drop test performance, nickel/copper/tin alloys help to improve the life test performance.
摘要:
The invention provides a semiconductor device that solves a problem of reflection of a pattern of a wiring (9) formed on a back surface of a semiconductor substrate (2) on an output image. A reflection layer (8) is formed between a light receiving element (1) and a wiring layer (9), that reflects an infrared ray toward a light receiving element (1) the without transmitting it to the wiring layer (9), the infrared ray entering from a light transparent substrate (6) toward the wiring layer (9) through a semiconductor substrate (2). The reflection layer (8) is formed at least in a region under the light receiving element (1) uniformly or only under the light receiving element (1). Alternatively, an anti-reflection layer having a function of absorbing the entering infrared ray to prevent transmission thereof may be formed instead of the reflection layer.
摘要:
A method of forming a self-assembled interconnect structure is described. In the method, a contact pad (104) surface and particles (304) in a solution are brought together. The particles are selected such that they the particles adhere to the contact pad surface. Formation of a contact is completed by pressing an opposite contact into the particles such that an electrical connection is formed via the particles between the opposite contact pad and the substrate surface contact pad. The described self-assembled interconnect structure is particularly useful in display device fabrication.
摘要:
A BGA type semiconductor device having high reliability is offered. A pad electrode (53) is formed on a surface of a semiconductor substrate (51) and a glass substrate (56) is bonded to the surface of the semiconductor substrate. A via hole (VH) is formed from a back surface of the semiconductor substrate (51) to reach a surface of the pad electrode (53). An insulation film is formed on an entire back surface of the semiconductor substrate (51) including an inside of the via hole (VH). A cushioning pad (60) is formed on the insulation film. The insulation film is removed from a bottom portion of the via hole (VH) by etching. A wiring (63) connected with the pad electrode (53) is formed to extend from the via hole (VH) onto the cushioning pad (60). A conductive terminal (66) is formed on the wirinq (63). Then the semiconductor substrate (51) is separated into a plurality of semiconductor dice.
摘要:
A method of forming a self-assembled interconnect structure is described. In the method, a contact pad (104) surface and particles (304) in a solution are brought together. The particles are selected such that they the particles adhere to the contact pad surface. Formation of a contact is completed by pressing an opposite contact into the particles such that an electrical connection is formed via the particles between the opposite contact pad and the substrate surface contact pad. The described self-assembled interconnect structure is particularly useful in display device fabrication.
摘要:
The invention provides a CSP type semiconductor device with high reliability. The semiconductor device includes a pad electrode (4) formed on a semiconductor substrate (1) with insulation films (2, 3) interposed therebetween, a plating layer (7) formed on the pad electrode (4), a conductive terminal (9) formed on the plating layer and electrically connected with the pad electrode (4), and a first passivation film (5) covering the insulation films (2, 3) and a side end portion of the pad electrode (4), in which an exposed portion of the pad electrode (4) that causes corrosion is covered by forming a second passivation film (10) so as to cover the first passivation film (5), the plating layer (7), and a portion of a sidewall of the conductive terminal (9).
摘要:
A first pad electrode layer (12) is disposed on a surface of a semiconductor substrate (10) with a first insulating film (11) between them. Then, a second insulating film (13) with a first via hole partially exposing a first pad electrode layer (12) is formed over the first pad electrode layer (12). A plug (14) is formed in the first via hole in the next process. The second pad electrode layer (15) connected to the plug (14) is disposed on the second insulating film (13). Next, a second via hole (102) reaching to the first pad electrode layer (13) from the backside of the semiconductor substrate (10) is formed. A penetrating electrode (20) and a second wiring layer (21) connected to the first pad electrode layer (13) at the bottom part of the second via hole (102) are disposed. Furthermore, a protecting layer (22) and a conductive terminal (23) are formed. Finally, the semiconductor substrate (10) is diced into the semiconductor chips.
摘要:
Bei einem Verfahren zum Herstellen einer einen Bump für eine Flip-Chip- oder dergleichen Verbindung aufweisenden Schichtanordnung (1) werden mehrere Schichten (2, 3, 4, 5, 6, 7, 11) aus Festkörpermaterial zu einem Schichtstapel (8) geschichtet. In den Schichtstapel (8) wird quer zu den Schichtungsebenen der Schichten (2, 3, 4, 5, 6, 7, 11) eine sich über mehrere der Schichten (2, 3, 4, 5, 6, 7, 11) erstreckende Ausnehmung (10) eingebracht. In die Ausnehmung (10) wird ein Bump-Material (14) eingebracht. An der seitlichen Begrenzungswand der Ausnehmung (10) durch Abtragen von Schichtmaterial unterschiedlicher Schichten (2, 3, 4, 5, 6, 7, 11) des Schichtstapels (8) eine Profilierung erzeugt wird, die ausgehend von der Oberfläche (9) des Schichtstapels (8) zum Inneren der Ausnehmung (10) hin schichtweise wenigstens zwei Rücksprünge (12) und zumindest einen dazwischen befindlichen Vorsprung (13) aufweist. Nach dem Fertigstellen der Profilierung wird ein Bump-Material (14) in die Ausnehmung (10) eingebracht, das die Rücksprünge (12) hintergreift.