JP2005183904A - 電子部品にはんだ領域を形成する方法及びはんだ領域を有する電子部品 - Google Patents
電子部品にはんだ領域を形成する方法及びはんだ領域を有する電子部品 Download PDFInfo
- Publication number
- JP2005183904A JP2005183904A JP2004096963A JP2004096963A JP2005183904A JP 2005183904 A JP2005183904 A JP 2005183904A JP 2004096963 A JP2004096963 A JP 2004096963A JP 2004096963 A JP2004096963 A JP 2004096963A JP 2005183904 A JP2005183904 A JP 2005183904A
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- Prior art keywords
- solder paste
- solder
- contact pads
- substrate
- metal
- Prior art date
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- 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
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/12—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/06—Solder feeding devices; Solder melting pans
- B23K3/0607—Solder feeding devices
- B23K3/0638—Solder feeding devices for viscous material feeding, e.g. solder paste feeding
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- 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
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Abstract
【解決手段】1つまたは複数のコンタクトパッド4を有する基板2を提供することと、該コンタクトパッドにソルダーペースト8を付け溶融、再固化することでソルダーバンプ12’を形成する。ソルダーペーストは、キャリヤ手段、及び金属粒子を有する金属成分を含み、ソルダーペーストの溶融及び該溶融の再固化の後に生じる固相線温度より低い固相線温度を有する。
【選択図】図1
Description
本願は、その全体的な内容が本願に引用して援用される2003年12月22日に提出された米国仮出願第60/532,264号の米国特許法(35 U.S.C.)第119条(e)の元での利点を主張する。
本発明によるナノ粒子ソルダーペーストは以下のように調製される。0.25Mの安息香酸溶液が0.92gの安息香酸と20mlのジエチルエーテルから調製される。86gのはんだ合金ナノ粒子が溶液に添加され、ときおり攪拌しながら1時間浸される。粉末スラリーが洗い流され、乾燥される。ロジンをベースにしたフラックスが50重量%のロジン、41重量%のグリコール溶媒、4重量%の琥珀酸、及び5重量%のヒマシ油から調製される。フラックスは金属粒子に添加され、表1に記載されるように重量で88重量%金属のペーストを形成する。結果として生じるソルダーペーストは、後述されるように電子デバイス上でのはんだ領域を形成するために使用される。
4 コンタクトパッド
6 フォトレジスト
6’ マスク
8 ソルダーペースト
10 スキージ
12 ソルダーペースト領域
12’ソルダーバンプ
13 電子部品
14 部品
16 コンタクトパッド
Claims (10)
- (a)1つまたはそれより多いコンタクトパッドを含む基板を提供し、さらに
(b)コンタクトパッド上にソルダーペーストを適用すること(ここで、該ソルダーペーストはキャリヤビヒクル及び金属粒子を含む金属成分を含む)
を含む、電子部品上にはんだ領域を形成する方法であって、
前記ソルダーペーストが、該ソルダーペーストの溶融及び該溶融物の再固化の後に生じる固相線温度より低い固相線温度を有する、前記方法。 - 粒子の50%以上が50nm以下の直径を有する請求項1記載の方法。
- 金属及び/または金属合金粒子の平均直径が30nm以下である請求項1または2記載の方法。
- (c)ソルダーペーストを溶融するために有効な温度にソルダーペーストを加熱し、さらに
(d)該溶融物を固化すること
をさらに含む請求項1から3のいずれか1項記載の方法。 - 基板が複数のコンタクトパッド及び該コンタクトパッド上に複数の対応するはんだ領域を含む請求項1から4のいずれか1項記載の方法。
- (c)第1の基板の1つまたはそれより多いコンタクトパッドに対応する、1つまたはそれより多いコンタクトパッドを含む第2の基板を提供し、さらに
(d)第1の基板と第2の基板を互いに接触させること(ここで、第2の基板のコンタクトパッドが第1の基板のコンタクトパッドと整合している)
をさらに含む請求項1から5のいずれか1項記載の方法。 - (d)において第2の基板のコンタクトパッドがソルダーペーストと接触しており、かつ
(e)(d)の後、該ソルダーペーストを溶融するのに有効な温度でソルダーペーストを加熱すること、
をさらに含む請求項6記載の方法。 - (a)1つまたはそれより多いコンタクトパッドを含む基板;および
(b)コンタクトパッド上のソルダーペーストであって、キャリヤビヒクル及び金属粒子を含む金属成分を含む該ソルダーペースト
を含む電子部品であって、
前記ソルダーペーストが、該ソルダーペーストの溶融及び該溶融物の再固化の後に生じる固相線温度より低い固相線温度を有する前記電子部品。 - 粒子の50%以上が50nm以下の直径を有する請求項8記載の電子部品。
- 基板が複数のコンタクトパッド及び該コンタクトパッド上の対応するソルダーバンプを含む請求項8または9記載の電子部品。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US53226403P | 2003-12-22 | 2003-12-22 |
Publications (2)
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JP2005183904A true JP2005183904A (ja) | 2005-07-07 |
JP2005183904A5 JP2005183904A5 (ja) | 2007-05-10 |
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JP2004096963A Pending JP2005183904A (ja) | 2003-12-22 | 2004-03-29 | 電子部品にはんだ領域を形成する方法及びはんだ領域を有する電子部品 |
Country Status (5)
Country | Link |
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US (1) | US20050133572A1 (ja) |
JP (1) | JP2005183904A (ja) |
KR (1) | KR20050063689A (ja) |
CN (1) | CN100469222C (ja) |
TW (1) | TWI254392B (ja) |
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JP2000164531A (ja) * | 1998-11-30 | 2000-06-16 | Toshiba Corp | 微粒子膜形成装置・形成方法、ならびに半導体装置およびその製造方法 |
JP2003059958A (ja) * | 2001-08-15 | 2003-02-28 | Sony Corp | マイクロバンプの形成方法 |
WO2004103043A1 (ja) * | 2003-05-16 | 2004-11-25 | Harima Chemicals, Inc. | 銅微粒子焼結体型の微細形状導電体の形成方法、該方法を応用した銅微細配線ならびに銅薄膜の形成方法 |
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JP2008252053A (ja) * | 2007-03-05 | 2008-10-16 | Toshiba Corp | 半導体装置の製造方法及び半導体装置 |
JP2010118633A (ja) * | 2008-11-12 | 2010-05-27 | Samsung Electro-Mechanics Co Ltd | 埋込み型ソルダーバンプを持つプリント基板及びその製造方法 |
US9021690B2 (en) | 2008-11-12 | 2015-05-05 | Samsung Electro-Mechanics Co., Ltd. | Method of manufacturing printed circuit board having buried solder bump |
JP2012019244A (ja) * | 2011-10-24 | 2012-01-26 | Fujitsu Ltd | 半導体装置、回路配線基板及び半導体装置の製造方法 |
Also Published As
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US20050133572A1 (en) | 2005-06-23 |
TW200527566A (en) | 2005-08-16 |
TWI254392B (en) | 2006-05-01 |
KR20050063689A (ko) | 2005-06-28 |
CN100469222C (zh) | 2009-03-11 |
CN1642392A (zh) | 2005-07-20 |
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