KR20010082601A - 범프 형성 방법, 전자 부품, 및 땜납 페이스트 - Google Patents
범프 형성 방법, 전자 부품, 및 땜납 페이스트 Download PDFInfo
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- KR20010082601A KR20010082601A KR1020000082597A KR20000082597A KR20010082601A KR 20010082601 A KR20010082601 A KR 20010082601A KR 1020000082597 A KR1020000082597 A KR 1020000082597A KR 20000082597 A KR20000082597 A KR 20000082597A KR 20010082601 A KR20010082601 A KR 20010082601A
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- South Korea
- Prior art keywords
- coating layer
- electrode pads
- substrate
- openings
- bump
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/48—Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the subgroups H01L21/06 - H01L21/326
- H01L21/4814—Conductive parts
- H01L21/4846—Leads on or in insulating or insulated substrates, e.g. metallisation
- H01L21/4853—Connection or disconnection of other leads to or from a metallisation, e.g. pins, wires, bumps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/6835—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/498—Leads, i.e. metallisations or lead-frames on insulating substrates, e.g. chip carriers
- H01L23/49866—Leads, i.e. metallisations or lead-frames on insulating substrates, e.g. chip carriers characterised by the materials
- H01L23/49883—Leads, i.e. metallisations or lead-frames on insulating substrates, e.g. chip carriers characterised by the materials the conductive materials containing organic materials or pastes, e.g. for thick films
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/10—Bump connectors ; Manufacturing methods related thereto
- H01L24/11—Manufacturing methods
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/10—Bump connectors ; Manufacturing methods related thereto
- H01L24/12—Structure, shape, material or disposition of the bump connectors prior to the connecting process
- H01L24/13—Structure, shape, material or disposition of the bump connectors prior to the connecting process of an individual bump connector
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/10—Bump connectors ; Manufacturing methods related thereto
- H01L24/15—Structure, shape, material or disposition of the bump connectors after the connecting process
- H01L24/16—Structure, shape, material or disposition of the bump connectors after the connecting process of an individual bump connector
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
- H05K3/3457—Solder materials or compositions; Methods of application thereof
- H05K3/3485—Applying solder paste, slurry or powder
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/02—Bonding areas; Manufacturing methods related thereto
- H01L2224/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
- H01L2224/05—Structure, shape, material or disposition of the bonding areas prior to the connecting process of an individual bonding area
- H01L2224/0554—External layer
- H01L2224/0556—Disposition
- H01L2224/05568—Disposition the whole external layer protruding from the surface
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
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Abstract
Description
Claims (20)
- 복수의 전극패드가 설치된 기판 위에 범프를 형성하는 방법으로서,상기 복수의 전극패드에 대응한 복수의 개구부를 갖는 마스크를 설치하는 공정과,상기 각 개구부 내에 땜납 페이스트를 충전하는 공정과,상기 땜납 페이스트를 가열처리하는 공정을 구비한 범프 형성 방법에 있어서,상기 땜납 페이스트는 땜납분말과 플럭스 비히클을 함유하고,상기 땜납분말은 상기 마스크의 두께 이상이며 두께의1.5배 이하의 입경을 갖는 것의 비율이 10중량% 이하 임을 특징으로 하는 범프 형성 방법.
- 제 1항에 있어서,상기 땜납분말은 개구부의 개구직경의 40% 이상의 입경을 갖는 것의 비율이 10중량% 이하인 범프 형성 방법.
- 제 1항에 있어서,상기 땜납분말은 상기 마스크 두께의 40∼100%의 입경을 갖는 것의 비율이 30중량% 이상인 범프 형성 방법.
- 제 1항에 있어서,상기 플럭스 비히클은 상기 땜납분말의 융점보다 낮은 비점을 갖는 제1 용제와, 상기 땜납분말의 융점보다 높은 비점을 갖는 제2 용제를 함유한 범프 형성 방법.
- 제 4항에 있어서,상기 제1 용제의 비점은 상기 땜납분말의 융점보다 5∼ 50℃ 낮고, 상기 제2 용제의 비점은 상기 땜납분말의 융점보다 5∼50℃ 높은 범프 형성 방법.
- 제 1항 내지 제 5항 중의 어느 한 항에 있어서,상기 마스크는, 상기 기판 위에 제1 피복층을 형성하는 공정과, 이 제1 피복층 위에 제2 피복층을 형성하는 공정과, 상기 제1 피복층 및 상기 제2 피복층에 대하여, 상기 각 전극패드에 대응하여 노광 및 에칭액을 사용한 현상에 의해서 상기 복수의 개구부를 형성하는 공정을 거쳐서 상기 기판 위에 설치되고, 또한상기 제1 피복층은 상기 제2 피복층을 현상하기 위한 에칭액에 의해서 용해하는 재료로 형성되어 있고, 상기 제2 피복층의 현상과 동시에 상기 제1 피복층을 에칭처리하는 범프 형성 방법.
- 제 6항에 있어서,상기 제1 피복층은 수용성 또는 알칼리성 수용액에 용해하기 쉬운 고분자 재료에 의해서 형성된 범프 형성 방법.
- 제 1항 내지 제 5항 중의 어느 한 항에 있어서,상기 복수의 전극패드는 복수의 군으로 나누어지는 것이고,상기 마스크는 상기 복수의 전극패드를 덮어서 피복층을 형성하는 공정과, 상기 피복층에 대하여 상기 복수의 개구부를 각 군마다 용적이 상이한 것으로서 상기 복수의 전극패드에 대응하여 형성하는 공정을 거쳐서 형성되는 범프 형성 방법.
- 제 1항 내지 5항 중의 어느 한 항에 있어서,상기 복수의 전극패드는, 복수의 제1 전극패드 및 복수의 제2 전극패드를 가짐과 동시에, 상기 복수의 개구부는 복수의 제1 개구부, 복수의 제2 개구부, 및 복수의 제3개구부를 갖고 있고,상기 마스크는 상기 복수의 제1 전극패드를 덮고, 상기 복수의 제2 전극패드를 노출시켜서 제1 피복층을 형성하는 공정과, 이 제1 피복층에 대하여 상기 복수의 제1 전극패드에 대응하여 상기 복수의 제1 개구부를 형성하는 공정과, 상기 제1 피복층과 상기 복수의 제2 전극패드를 덮도록 제2 피복층을 형성하는 공정과, 상기 제2 피복층에 대하여 상기 복수의 제2 전극패드에 대응하여 상기 복수의 제2 개구부를 형성하여, 상기 복수의 제1 개구부에 대응하여 상기 복수의 제3개구부를 형성하는 공정을 거쳐서 형성된 범프 형성 방법.
- 제 9항에 있어서,상기 각 제1 개구부는 상기 각 제2 개구부보다 큰 개구면적을 갖도록 형성된 범프 형성 방법.
- 제 1항 내지 제 5항 중의 어느 한 항에 있어서,상기 각 개구부에의 땜납 페이스트의 충전은 기판지지체 위에 상기 기판을 지지시키는 공정과, 상기 마스크의 높이위치와 상기 기판 주위의 높이위치의 차이를 완화하는 스퀴징용 보조수단을 설치하는 공정과, 상기 마스크 또는 상기 스퀴징용 보조수단 상에 땜납 페이스트를 준비하는 공정과, 스퀴지를 이동시켜서 상기 땜납 페이스트를 상기 각 개구부 내에 떨어뜨려 넣는 공정을 거쳐서 행해지는 범프 형성 방법.
- 제11 항에 있어서,상기 스퀴징용 보조수단은 상기 기판의 형상에 대응한 개구를 갖는 평판인 범프 형성 방법.
- 제11 항에 있어서,상기 기판지지체는 상기 기판의 적어도 일부를 수용하는 요부를 갖고 있는 범프 형성 방법.
- 복수의 전극패드가 설치된 기판 위에 범프를 형성하는 방법으로서,상기 기판 위에 제1 피복층을 형성하는 공정과,상기 제1 피복층 위에 제2 피복층을 형성하는 공정과,상기 제1 피복층 및 제2 피복층에 대하여, 노광 및 에칭액을 사용한 현상에 의해서 상기 전극패드에 대응하여 복수의 개구부를 형성하는 공정과,상기 각 개구부에 금속을 충전하는 공정과,상기 금속을 가열에 의해서 상기 전극패드에 일체화하는 공정을 포함하고, 또한상기 제1 피복층은, 상기 제2 피복층을 현상하기 위한 상기 에칭액에 의해서 용해하는 재료로 형성되어 있고, 상기 제2 피복층의 현상과 동시에, 상기 제1 피복층을 에칭처리하여 상기 각 개구부를 형성함을 특징으로 하는 범프 형성 방법.
- 복수의 군으로 나누어지는 복수의 전극패드가 설치된 기판 위에 범프를 형성하는 방법으로서,상기 각 군마다 다른 크기가 되도록, 상기 복수의 전극패드에 대응한 복수의 개구부를 갖는 마스크를 형성하는 공정과,상기 각 개구부에 땜납 페이스트를 충전하는 공정과,가열처리에 의해서 땜납 페이스트로부터 범프를 형성하는 공정과,상기 피복층을 상기 기판으로부터 제거하는 공정을 가짐을 특징으로 하는 범프 형성 방법.
- 복수의 제1 전극패드 및 복수의 제2 전극패드가 설치된 기판 위에 범프를 형성하는 방법으로서,상기 복수의 제1 전극패드를 덮고, 상기 복수의 제2 전극패드가 노출된 상태로 제1 피복층을 형성하는 공정과,상기 제1 피복층에 대하여, 상기 복수의 제1 전극패드에 대응하여 복수의 제1 개구부를 형성하는 공정과,상기 제1 피복층과 상기 복수의 제2 전극패드를 덮도록 제2 피복층을 형성하는 공정과,상기 제2 피복층에 대하여, 상기 복수의 제2 전극패드에 대응해서 복수의 제2개구를 형성하고, 상기 복수의 제1 개구부에 대응하여 복수의 제3개구부를 형성하는 공정과,상기 각 제1 개구부, 상기 각 제2 개구부, 및 상기 각 제3개구부에 땜납 페이스트를 충전하는 공정과,가열처리에 의해서, 땜납 페이스트로 범프를 형성하는 공정을 가짐을 특징으로 하는 범프 형성 방법.
- 복수의 전극패드가 설치된 기판 위에 범프를 형성하는 방법으로서,기판지지체 위에 상기 기판을 지지시키는 공정과,적어도 상기 기판을 덮도록 피복층을 형성하는 공정과,상기 피복층에 대하여, 상기 복수의 전극패드에 대응하여 복수의 개구부를 형성하는 공정과,상기 기판 위에 있어서의 상기 피복층의 높이위치와 상기 기판 주위의 높이위치의 차이를 완화하는 스퀴징용 보조수단을 설치하는 공정과,상기 피복층 또는 상기 스퀴징용 보조수단 위에 금속페이스트 또는 금속분말을 준비하는 공정과,스퀴지의 이동에 의해서 상기 금속페이스트 또는 금속분말을 상기 각 개구부 내에 떨어뜨려 넣는 공정과,상기 금속페이스트 또는 금속분말을 가열용융·고화시켜서 상기 전극패드 위에 일체화시키는 공정과,상기 스퀴징용 보조수단을 제거하는 공정을 포함함을 특징으로 하는 범프 형성 방법.
- 기판과,이 기판의 동일표면 위에 형성된 복수의 제1 전극패드 및 복수의 제2 전극패드와,상기 복수의 제1 전극패드에 대응하여 형성된 복수의 제1 범프와,상기 복수의 제2 전극패드에 대응하여 형성된 복수의 제2 범프를 구비하고,상기 각 제1 전극패드의 면적은, 상기 각 제2 전극패드의 면적보다 작고,상기 각 제1 범프의 정점의 위치가 상기 제2 범프의 정점의 위치보다 높게되어 있음을 특징으로 하는 전자부품.
- 기판과,이 기판의 동일표면 위에 형성된 복수의 제1 전극패드 및 복수의 제2 전극패드와,상기 기판에 있어서의 상기 복수의 제1 전극패드가 형성된 영역에 형성되고, 상기 복수의 제1 전극패드에 대응한 복수의 개구부를 갖는 피복층과,상기 복수의 제1 전극패드에 대응하여 설치되고, 상기 피복층으로부터 구형상(球形狀) 부분이 돌출되는 복수의 제1 범프와,상기 제2 전극패드에 대응하여 설치되고, 구형상부분이 대응하는 제2 전극패드 위에 직접적으로 형성된 복수의 제2 범프를 구비하고,상기 각 제1 범프의 정점의 위치는 상기 제2 범프의 정점의 위치보다 높게 되어 있는 것을 특징으로 하는 전자부품.
- 땜납분말과, 용제를 함유한 땜납 페이스트로서,상기 용제는, 상기 땜납분말의 융점보다 낮은 비점을 갖는 제1 용제와, 상기 땜납분말의 융점보다 높은 비점을 갖는 제2 용제를 포함함을 특징으로 하는 땜납 페이스트.
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US20010008310A1 (en) | 2001-07-19 |
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