Abstract:
PURPOSE: A method for fabricating receiving structure for a conductive bump with a step-hollow configuration, the conductive bump, a receiving structure fabricated by the same and a method for connecting chips using the same are provided to use the conductive bump without location constraint. CONSTITUTION: An electrode is formed on a substrate. A first photoresist layer covering the electrode is patterned. A second photoresist layer covering the first photoresist layer is formed. A part of the second photoresist layer is removed to form a first space(15). The first photoresist layer is removed to form a second space part(16).
Abstract:
PURPOSE: A method for manufacturing a conductive bump receiving structure with a hollow part, the conductive bump receiving structure, and a method for connecting chips using the same are provided to induce connection between the chips using a dot or line type conductive bump. CONSTITUTION: A photoresist layer(110) is laminated on a substrate. The photoresist layer is patterned. The photoresist layer with a trench structure(111) is formed by a patterning process. A seed layer(120) is coated on the front side of the photoresist layer with the trench structure. The coated seed layer is electroplated.
Abstract:
PURPOSE: An insulating film for chip lamination, a manufacturing method thereof, and a chip lamination method using the same are provided to simplify a lamination process without forming an insulating layer at side of a chip. CONSTITUTION: A plurality of metal patterns is included inside an insulating layer. The plurality of metal patterns is vertically separated as predetermined distance with each other. The distance between metal patterns is shorter than the distance between chip pads. A second metal Line(122) is extended in a chip lamination direction. A first metal Line(121) is perpendicularly extended as predetermined length. The insulating layer is eliminated as predetermined depth and width. A chip receiving space of trench shape is formed between first metal Lines.
Abstract:
절연필름을 이용한 칩 적층방법, 이에 의하여 적층된 칩, 이를 위한 절연필름 및 그 제조방법이 제공된다. 본 발명에 따른 절연필름을 이용한 칩 적층방법은 소정 간격만큼 이격되며, 길이 방향으로 연장된 복수의 금속패턴을 절연층 내부에 포함하는 절연필름을 이용한 복수 칩 적층 방법으로, 상기 방법은 상기 칩 사이의 이격 공간에서 상기 절연필름을 상기 칩 방향으로 소정 길이만큼 삽입하는 단계; 및 상기 내부의 금속 패턴을 상기 복수 칩 상부에 형성된 칩 패드에 접합시키는 단계를 포함하는 것을 특징으로 하며, 본 발명은 적층 칩의 층간 전기적인 인터커넥션을 형성하기 위하여 금속 패턴이 형성된 절연필름을 이용, 열압착 방식으로 칩을 적층, 접합시키므로 1회의 공정만으로도 복수 개의 칩을 한번에 적층할 수 있다.
Abstract:
PURPOSE: A silicon through via for bonding a chip, the chip including the same, a laminated chip, and a method for bonding the laminated chip using an electroplating are provided to improve conductivity and bonding strength by forming a metal bonding part with the electroplating. CONSTITUTION: A metal part(140) fills a silicon through via(170). A metal pad(150) is laminated on the silicon through via. A metal bump(160) is protruded from the chip with a preset height. The metal bump and the metal pad are made of the same metal materials. An insulation layer(120) and a metal seed layer(130) are successively laminated on the silicon through via.
Abstract:
PURPOSE: A method for bonding a stack chip using electroless plating is provided to improve bonding strength and electric conductivity by forming a metal junction unit with electroless plating. CONSTITUTION: A plurality of chips with a plurality of TSV(Through-Silicon Via)s are arranged to contact a metal pad with a metal bump(115). Arranged chips are immersed in a plating bath with electroless plating solutions. The plurality of chips are bonded by forming a metal junction unit(210) by plating a metal layer around the metal pad and the metal bump.
Abstract:
PURPOSE: A chip with a slanted conductive bump, an electronic part including the chip, and a manufacturing method thereof are provided to restrict excessive deformation of the conductive bump, thereby preventing conductive bump destruction. CONSTITUTION: One or more pads(210) are arranged on the surface of a chip(200) including a conductive bump. A plurality of first slanted conductive bumps(220) is arranged on the upper surface of the pad. A plurality of second slanted conductive bumps(230) is arranged on the surface of the chip adjacent to the pad. The first and second slanted conductive bumps have a cylindrical structure slanted with a fixed angle(Θ). A polymer layer(240) fills the circumference of the first and second slanted conductive bumps.
Abstract:
칩 접합을 위한 실리콘 기판 관통 비아, 이를 포함하는 칩, 적층 칩 및 전기도금을 이용한 적층 칩 접합방법이 제공된다. 본 발명에 따른 칩 접합을 위한 실리콘 기판 관통 비아는 상기 칩을 관통하는 실리콘 관통 비아 홀 내부를 채우는 금속부; 상기 금속부와 연결되며, 상기 실리콘 관통 비아 홀 위로 적층된 금속패드; 및 상기 금속부와 연결되며, 상기 실리콘 관통 비아 홀 아래로 소정 높이만큼 상기 칩으로부터 돌출하는 금속범프를 포함하며, 여기에서 상기 금속패드 또는 금속범프는 다른 칩의 금속범프 또는 금속패드와 접촉된 후, 전기도금되며, 본 발명은 전기도금을 이용, TSV가 형성된 복수 적층 칩의 접촉부위를 동시에 접합할 수 있기 때문에 가공 공정이 단순하고 생산성이 높은 장점이 있다.
Abstract:
이 발명은 전기도금 공정을 이용하여 TSV(Through-Silicon Via)가 가공된 복수의 칩이 적층된 적층 칩을 접합하는 방법에 관한 것으로서, 복수의 칩을 정렬한 상태에서 전기도금 공정을 이용하여 TSV 주위를 도금하여 금속 접합부를 형성함으로써, 복수의 칩을 서로 접합한다. 이 발명은 전기도금을 이용하여 TSV가 형성된 적층 칩의 금속 범프를 동시에 접합할 수 있으므로 가공 공정이 단순하고 생산성이 높은 장점이 있다. 또한, 이 발명은 저온에서 도금에 의해 접합부를 형성함에 따라 잔류응력과 변형이 발생하지 않으므로 신뢰성이 높은 접합부를 형성할 수 있고, 전기도금으로 금속 접합부를 형성하므로 전기 전도도와 접합 강도가 우수한 장점이 있다.
Abstract:
PURPOSE: A method for bonding a stack chip using electroless plating is provided to improve bonding strength and electric conductivity by forming a metal junction unit with electroless plating. CONSTITUTION: A plurality of chips with a plurality of TSV(Through-Silicon Via)s are arranged to contact a metal pad with a metal bump(115). Arranged chips are immersed in a plating bath with electroless plating solutions. The plurality of chips are bonded by forming a metal junction unit(210) by plating a metal layer around the metal pad and the metal bump.