JP7251932B2 - エレクトロニクスアセンブリにおける遮蔽 - Google Patents
エレクトロニクスアセンブリにおける遮蔽 Download PDFInfo
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- JP7251932B2 JP7251932B2 JP2018143277A JP2018143277A JP7251932B2 JP 7251932 B2 JP7251932 B2 JP 7251932B2 JP 2018143277 A JP2018143277 A JP 2018143277A JP 2018143277 A JP2018143277 A JP 2018143277A JP 7251932 B2 JP7251932 B2 JP 7251932B2
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- H—ELECTRICITY
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- H05K9/002—Casings with localised screening
- H05K9/0022—Casings with localised screening of components mounted on printed circuit boards [PCB]
- H05K9/0024—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields
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- H01L2224/131—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
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- H01L2224/83—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 layer connector
- H01L2224/838—Bonding techniques
- H01L2224/8385—Bonding techniques using a polymer adhesive, e.g. an adhesive based on silicone, epoxy, polyimide, polyester
- H01L2224/83851—Bonding techniques using a polymer adhesive, e.g. an adhesive based on silicone, epoxy, polyimide, polyester being an anisotropic conductive adhesive
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- 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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- H01L24/15—Structure, shape, material or disposition of the bump connectors after the connecting process
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- H01L2924/151—Die mounting substrate
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- H01L2924/1531—Connection portion the connection portion being formed only on the surface of the substrate opposite to the die mounting surface
- H01L2924/15311—Connection portion the connection portion being formed only on the surface of the substrate opposite to the die mounting surface being a ball array, e.g. BGA
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- H01L2924/151—Die mounting substrate
- H01L2924/153—Connection portion
- H01L2924/1532—Connection portion the connection portion being formed on the die mounting surface of the substrate
- H01L2924/15321—Connection portion the connection portion being formed on the die mounting surface of the substrate being a ball array, e.g. BGA
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- H01L2924/19101—Disposition of discrete passive components
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Description
如何なる所望の形態を有していてもよい。第2階層インターコネクト142は、シールド120の周辺領域154との電気コンタクトをなし、そして、パッケージ基板106を通る導通路148が、電子部品108の周りの導電“ループ”を完成させ得る。
更に有する例18乃至21の何れかに記載の方法。
例23に記載のコンピューティング装置。
Claims (23)
- 第1の面及び反対側の第2の面を有する回路ボードであり、当該回路ボードを貫いて延在する孔を有する回路ボードと、
前記回路ボードの前記第2の面に取り付けられた、予め形成されたシールドであり、少なくとも部分的に前記孔の中にあるキャビティを含むシールドと、
前記回路ボードの前記第2の面に取り付けられた集積回路(IC)パッケージであり、当該ICパッケージは、第1の面及び反対側の第2の面を有するパッケージ基板と、該パッケージ基板の該第1の面に結合された電子部品とを含み、該電子部品が前記キャビティの中まで延在しており、前記パッケージ基板の前記第1の面は前記シールドから離隔されている、ICパッケージと、
を有するエレクトロニクスアセンブリ。 - 前記電子部品と前記シールドとの間の熱インタフェース材料、
を更に有する請求項1に記載のエレクトロニクスアセンブリ。 - 前記電子部品は第1の電子部品であり、前記ICパッケージは更に、前記パッケージ基板の前記第2の面に結合された第2の電子部品を含む、請求項1に記載のエレクトロニクスアセンブリ。
- 前記パッケージ基板は、前記シールドに導電的に結合された導通路を含む、請求項1に記載のエレクトロニクスアセンブリ。
- 前記シールドは、前記パッケージ基板の前記第1の面に導電材料で結合されている、請求項4に記載のエレクトロニクスアセンブリ。
- 前記導電材料ははんだを含む、請求項5に記載のエレクトロニクスアセンブリ。
- 前記回路ボードは、前記シールドに導電的に結合された導通路を含む、請求項4に記載のエレクトロニクスアセンブリ。
- 前記パッケージ基板の前記導通路が、前記回路ボードの前記導通路に導電的に結合されている、請求項7に記載のエレクトロニクスアセンブリ。
- 前記電子部品は、ダイ、キャパシタ、インダクタ、又は電圧レギュレータを含む、請求項1に記載のエレクトロニクスアセンブリ。
- 前記シールドは、鋼鉄、錫、アルミニウム、ニッケル、又は銀を含む、請求項1乃至9の何れかに記載のエレクトロニクスアセンブリ。
- 第1の面及び反対側の第2の面を有する回路ボードであり、当該回路ボードを貫いて延在する孔を有する回路ボードと、
第1のインターコネクトによって前記回路ボードの前記第2の面に取り付けられた、予め形成されたシールドであり、当該シールドはキャビティを含み、該キャビティは、少なくとも部分的に前記孔の中にある、シールドと、
第2のインターコネクトによって前記回路ボードの前記第2の面に取り付けられた集積回路(IC)パッケージであり、当該ICパッケージは、パッケージ基板と、該パッケージ基板に結合された電子部品とを含み、該電子部品が前記キャビティの中まで延在しており、前記パッケージ基板は前記シールドから離隔されている、ICパッケージと、
を有するエレクトロニクスアセンブリ。 - 前記シールドは、前記孔を貫いて、前記第1の面の平面を超えて延在している、請求項11に記載のエレクトロニクスアセンブリ。
- 前記シールドは、前記第1の面の平面を超えて延在してはいない、請求項11に記載のエレクトロニクスアセンブリ。
- 前記回路ボードはマザーボードである、請求項11乃至13の何れかに記載のエレクトロニクスアセンブリ。
- 前記第1のインターコネクトは、はんだペーストを有し、前記シールドは、前記回路ボードの前記第2の面上の導電コンタクトに、前記はんだペーストで結合されている、請求項11乃至13の何れかに記載のエレクトロニクスアセンブリ。
- エレクトロニクスアセンブリを製造する方法であって、
シールドを回路ボード上のはんだ材料と接触させ、前記回路ボードは、前記回路ボードを貫いて延在する孔を有し、前記シールドは、前記シールドが前記回路ボードと電気的に接触させられたときに前記孔の中まで延在するキャビティを有し、且つ
前記はんだ材料をリフローさせて、前記シールドを前記回路ボードに固定する、
ことを有する方法。 - 当該方法は更に、前記はんだ材料をリフローさせる前に、集積回路(IC)パッケージを前記回路ボードと電気的に接触させることを有し、前記ICパッケージ及び前記シールドは、前記回路ボードの同一面と電気的に接触させられ、前記ICパッケージと前記回路ボードとの間にはんだ材料がある、請求項16に記載の方法。
- 前記ICパッケージは、リフロー前に、大きい方のはんだボールと、小さい方のはんだボールとを含み、前記ICパッケージを前記回路ボードと電気的に接触させることは、前記大きい方のはんだボールを前記回路ボードと電気的に接触させ、且つ前記小さい方のはんだボールを前記シールドと電気的に接触させることを含む、請求項17に記載の方法。
- 前記ICパッケージは、前記ICパッケージが前記回路ボードと電気的に接触させられたときに前記キャビティの中まで延在する電子部品を含む、請求項17に記載の方法。
- 前記シールドを、金属シートをスタンピングすることによって形成する、
ことを更に有する請求項16乃至19の何れかに記載の方法。 - 第1の面及び反対側の第2の面を有する回路ボードであり、当該回路ボードを貫いて延在する孔を有する回路ボードと、
前記回路ボードの前記第2の面に取り付けられた、予め形成されたシールドであり、当該シールドはキャビティを含み、該キャビティは、少なくとも部分的に前記孔の中にある、シールドと、
前記回路ボードの前記第2の面に取り付けれた集積回路(IC)パッケージであり、当該ICパッケージは、パッケージ基板と、該パッケージ基板に結合された電子部品とを含み、該電子部品が前記キャビティの中まで延在しており、前記パッケージ基板は前記シールドから離隔されている、ICパッケージと、
を有するコンピューティング装置。 - 当該コンピューティング装置はラップトップコンピューティング装置である、請求項21に記載のコンピューティング装置。
- 前記電子部品は、ダイ、キャパシタ、インダクタ、又は電圧レギュレータを含む、請求項21又は22に記載のコンピューティング装置。
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