JP2022550707A - 基板への側面接続を含む相互接続 - Google Patents
基板への側面接続を含む相互接続 Download PDFInfo
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- JP2022550707A JP2022550707A JP2022518633A JP2022518633A JP2022550707A JP 2022550707 A JP2022550707 A JP 2022550707A JP 2022518633 A JP2022518633 A JP 2022518633A JP 2022518633 A JP2022518633 A JP 2022518633A JP 2022550707 A JP2022550707 A JP 2022550707A
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- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/28—Structure, shape, material or disposition of the layer connectors prior to the connecting process
- H01L2224/29—Structure, shape, material or disposition of the layer connectors prior to the connecting process of an individual layer connector
- H01L2224/29001—Core members of the layer connector
- H01L2224/29099—Material
- H01L2224/2919—Material with a principal constituent of the material being a polymer, e.g. polyester, phenolic based polymer, epoxy
-
- 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
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73201—Location after the connecting process on the same surface
- H01L2224/73203—Bump and layer connectors
- H01L2224/73204—Bump and layer connectors the bump connector being embedded into the layer connector
-
- 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
- H01L2224/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L2224/81—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a bump connector
- H01L2224/8119—Arrangement of the bump connectors prior to mounting
- H01L2224/81191—Arrangement of the bump connectors prior to mounting wherein the bump connectors are disposed only on the semiconductor or solid-state body
-
- 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
- H01L2224/93—Batch processes
- H01L2224/95—Batch processes at chip-level, i.e. with connecting carried out on a plurality of singulated devices, i.e. on diced chips
-
- 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
- H01L23/49811—Additional leads joined to the metallisation on the insulating substrate, e.g. pins, bumps, wires, flat leads
- H01L23/49816—Spherical bumps on the substrate for external connection, e.g. ball grid arrays [BGA]
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Abstract
Description
cosθw=rcosθ
ここで、θwは見掛けの接触角、θはYoungの接触角、rは粗度比(滑らかな表面の場合はr=1、粗い表面の場合はr>1)を表す。
cosθc’=fcosθa+(1-f)cosθb
ここで、fは液相および固相に接触する面積の比、θaは一部の表面積fに関する成分Aの接触角、θbは残りの表面積(1-f)に関する成分Bの接触角を表す。液体が空気に接触する場合(たとえば、θb=180°の場合)、Cassieの式は以下のようになる。
cosθc’=fcosθa+1-f
Claims (15)
- ベース基板と、
前記ベース基板上に配設された一組の導電性パッドと、
前記ベース基板上に配設され、前記一組の導電性パッドの隣に位置する縁部を有し、前記縁部に位置して露出した一組の側面接続パッドを含む相互接続層であり、前記一組の側面接続パッドの各側面接続パッドが、前記ベース基板上に配設された前記一組の導電性パッドの対応する導電性パッドに対して配置された、前記相互接続層と、
を備えた相互接続構造。 - 各側面接続パッドが、前記相互接続層の上面で露出した上面および前記相互接続層の前記縁部で露出した縁部面を有し、前記縁部面が、前記導電性パッドのうちの前記対応する側を向いた、請求項1に記載の相互接続構造。
- 各側面接続パッドの前記縁部面および前記上面の少なくとも一方が、バリア・メタルを有する、請求項2に記載の相互接続構造。
- 前記相互接続層が、前記相互接続層の前記上面を構成する絶縁材料をさらに含み、前記相互接続層の前記上面で一組の第1のボンディング・パッドが前記絶縁材料から露出し、前記一組の第1のボンディング・パッドが、チップの搭載に用いられ、前記一組のボンディング・パッドの第1のボンディング・パッドがそれぞれ、前記絶縁材料に埋め込まれた配線を介して、前記側面接続パッドの対応する1つに接続された、請求項1に記載の相互接続構造。
- 前記相互接続層が、前記チップを搭載する第2のボンディング・パッドおよび別のチップを搭載する第3のボンディング・パッドをさらに含み、前記第2のボンディング・パッドが、前記絶縁材料に埋め込まれたトレースを介して、前記第3のボンディング・パッドに接続された、請求項4に記載の相互接続構造。
- 前記相互接続層の前記縁部が、その長さを延長する1つまたは複数の湾曲または角度付き形状を有し、前記一組の側面接続パッドおよび前記一組の導電性パッドが、前記1つまたは複数の湾曲または角度付き形状の輪郭に沿って形成された、請求項1に記載の相互接続構造。
- 前記相互接続層の1つの側面接続パッドおよび前記ベース基板上に配設された1つの対応する導電性パッドから成る各対が、電源または接地用に独立して用いられる、請求項1に記載の相互接続構造。
- 前記ベース基板が上面を有し、各導電性パッドがパッド面を有し、前記ベース基板の前記上面および前記各導電性パッドの前記パッド面が、表面粗さを増大させる表面処理によって処理されたそれぞれの部分を有する、請求項1に記載の相互接続構造。
- 前記相互接続層の1つの側面接続パッドを前記ベース基板上に配設された1つの対応する導電性パッドとそれぞれ接続する一組のはんだ接合部をさらに備えた、請求項1に記載の相互接続構造。
- 前記ベース基板に搭載された1つまたは複数のチップをさらに備え、前記チップのうちの少なくとも1つが、前記側面接続パッドのうちの1つを通じて、前記ベース基板上に配設された前記導電性パッドのうちの対応する1つに電気接続された端子を有する、請求項9に記載の相互接続構造。
- 相互接続構造を製造する方法であって、
一組の導電性パッドが配設されたベース基板を用意することと、
縁部に位置して露出した一組の側面接続パッドを含む相互接続層を前記ベース基板上に配設することであり、前記相互接続層の前記縁部が前記一組の導電性パッドの隣に位置し、前記一組の側面接続パッドの各側面接続パッドが、前記ベース基板上に配設された前記一組の導電性パッドの対応する導電性パッドに対して配置されるように、相互接続層を前記ベース基板上に配設することと、
を含む、方法。 - 前記相互接続層の前記一組の側面接続パッドを前記ベース基板上に配設された前記一組の導電性パッドとそれぞれ接続する一組のはんだ接合部を形成することをさらに含む、請求項11に記載の方法。
- 前記ベース基板が上面を有し、各導電性パッドがパッド面を有し、前記方法が、前記導電性パッドに近い前記ベース基板の前記上面の少なくとも一部および各導電性パッドの前記パッド面の両者に対して、表面粗さを増大させる表面処理を適用することにより、前記上面の前記少なくとも一部および各導電性パッドの前記パッド面を粗くすることをさらに含む、請求項12に記載の方法。
- 1つまたは複数のチップを前記ベース基板上に搭載することであり、前記チップのうちの少なくとも1つが、前記側面接続パッドのうちの1つを通じて、前記ベース基板上に配設された前記導電性パッドのうちの1つに電気接続された端子を有するように、1つまたは複数のチップを前記ベース基板上に搭載することをさらに含む、請求項12に記載の方法。
- 前記相互接続層を配設することが、
支持基板、前記支持基板上の剥離層、および前記剥離層上の相互接続層部を含む相互接続層担持構造を上下逆で前記ベース基板上に載置することと、
前記剥離層を除去して前記相互接続層部を前記支持基板から剥離することにより、前記ベース基板上に配設された前記相互接続層を用意することと、
を含む、請求項11に記載の方法。
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