JP4647594B2 - 集積回路チップのi/oセル - Google Patents
集積回路チップのi/oセル Download PDFInfo
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- JP4647594B2 JP4647594B2 JP2006509808A JP2006509808A JP4647594B2 JP 4647594 B2 JP4647594 B2 JP 4647594B2 JP 2006509808 A JP2006509808 A JP 2006509808A JP 2006509808 A JP2006509808 A JP 2006509808A JP 4647594 B2 JP4647594 B2 JP 4647594B2
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- 229910052751 metal Inorganic materials 0.000 claims description 137
- 239000002184 metal Substances 0.000 claims description 137
- 239000004020 conductor Substances 0.000 claims description 57
- 239000000758 substrate Substances 0.000 claims description 31
- 239000004065 semiconductor Substances 0.000 claims description 3
- 238000000059 patterning Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 143
- 238000002161 passivation Methods 0.000 description 18
- 229910052782 aluminium Inorganic materials 0.000 description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 13
- 238000000034 method Methods 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 230000008901 benefit Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 150000002739 metals Chemical group 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004092 self-diagnosis Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
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- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/528—Layout of the interconnection structure
- H01L23/5286—Arrangements of power or ground buses
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- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
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- H01L2224/48227—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation connecting the wire to a bond pad of the item
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- H01L2224/48233—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation connecting the wire to a potential ring of the item
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Description
特に断らない限り、異なる図に使用する同じ参照符号は同じ部品を指す。
図1は、ICチップ103を封止する前にパッケージ基板105に取り付けられるICチップ103を含むパッケージIC101の一実施形態の上面図である。図示した実施形態では、基板105はボールグリッドアレイ(BGA)基板である。しかしながら、他のタイプのパッケージ基板を利用することができる。ICチップ103の周縁部には、チップ103の回路(図1には示さず)をパッケージ基板105上に位置するボンディングフィンガー(例えば123)及び電源リング119,121に接続するボンディングパッド(例えば111,113,114,及び116)が設けられている。図1において、ボンディングパッド群は、一列に並んだ対に配置される。例えば、外側パッド114は、内側パッド111と一直線に並んで位置して、一列に並んだ対を形成する。外側パッド114は内側パッド111よりもICチップ103のエッジに近接して位置する。各一列に並んだ対はI/Oセルの一部である。ボンディングパッド対の内側パッド(例えば参照符号111及び116)はI/O信号をチップ103に送信し、かつ/またはI/O信号をチップ103から送出するための信号パッドである。信号パッドはボンディングワイヤ(例えば135)によってボンディングフィンガー123に接続される。ボンディングフィンガー123は導電ビア125に接続され、これらの導電ビアはパッケージ基板105の反対側の面に位置するボール(図示せず)に接続される。ボール(図示せず)はパッケージICの外部への電気的な接続を行う。I/Oセルは、入力信号及び/又は出力信号を処理する能動I/O回路(例えば図2の参照符号211)を備える。
Claims (5)
- 複数の入力/出力(I/O)セルを含む集積回路(IC)チップであって、その複数のI/Oセルの各I/Oセルは、
ICチップの基板に位置する能動I/O回路と、
前記基板の上に形成されるとともに、第1電源導体、第2電源導体、及び信号導体を備える複数の金属相互接続層と、
前記複数の金属相互接続層の上に形成される絶縁層と、
前記絶縁層の上に形成されるとともに、前記信号導体に接続される第1パッドと、
前記絶縁層の上に形成されるとともに、複数の金属相互接続層の内の最上部に位置する金属層の少なくとも2つの金属構造の直上に位置する第2パッドとを備え、該第2パッドは、前記絶縁層の少なくとも一つの開口を通して、少なくとも2つの金属構造の内の一つの金属構造に選択的に接続される、ICチップ。 - 前記少なくとも2つの金属構造のうちの第1の金属構造は前記第1電源導体に結合され、前記第1電源導体は第1の電源電位を供給するように構成され、前記少なくとも2つの金属構造のうちの第2の金属構造は前記第2電源導体に結合され、前記第2電源導体は第2の電源電位を供給するように構成される、請求項1に記載のICチップ。
- 前記絶縁層は、絶縁層マスクを用いてパターニングされ、前記少なくとも2つの金属構造の内の一つの金属構造の直上の所定位置における前記絶縁層の少なくとも一つの開口を通して、前記第2パッドを前記少なくとも2つの金属構造の内の一つの金属構造に選択的に結合させるようにマスクをプログラム化する、請求項1に記載のICチップ。
- 入力/出力(I/O)セルを含む集積回路(IC)チップであって、I/Oセルは、
ICチップの基板に位置する能動I/O回路と、
前記基板の上に形成される複数の金属相互接続層と、
前記複数の金属相互接続層の上に形成される絶縁層と、
前記絶縁層の上に形成されるとともに、該絶縁層の少なくとも一つの開口を通して前記複数の金属相互接続層の内の第1金属構造に接続される第1パッドと、
前記絶縁層の上に形成されるとともに、複数の金属相互接続層の内の最上部に位置する金属層の少なくとも2つの金属構造の直上に位置する第2パッドとを備え、第2パッドは、少なくとも2つの前記金属構造の内の一つの金属構造に対して、当該少なくとも2つの金属構造の内の一つの金属構造の直上に位置する前記絶縁層の少なくとも一つの開口を通して、選択的に接続される、ICチップ。 - 半導体チップのI/Oセルの標準化された設計ブロックを設ける工程であって、前記I/Oセルは、金属相互接続層と、金属相互接続層の上に形成される絶縁層と、前記絶縁層の上に形成されるとともに、信号を伝送する第1パッドと、前記絶縁層の上に形成されるとともに、電源電位を供給する第2パッドとを備え、前記第2パッドは金属相互接続層の少なくとも2つの金属構造の直上に形成されており、前記絶縁層は複数の位置を有し、少なくとも2つの金属構造の各金属構造は複数の位置の内の一つの位置に対応し、少なくとも2つの金属構造の内の第1金属構造は第1電源電位を供給する導体であり、少なくとも2つの金属構造の内の第2金属構造は第2電源電位を供給する導体である、工程と、
第2パッドを、少なくとも2つの金属構造の一つの金属構造に対して、当該少なくとも2つの金属構造の内の一つの金属構造に対応する複数の位置の内の一つの位置にある少なくとも一つの開口を通して選択的に接続するように、マスクをプログラム化する工程と、
前記マスクを使用して前記絶縁層をパターニングする工程とを備える、ICチップの形成方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/409,766 US6717270B1 (en) | 2003-04-09 | 2003-04-09 | Integrated circuit die I/O cells |
PCT/US2004/010813 WO2004093188A1 (en) | 2003-04-09 | 2004-04-08 | Integrated circuit die i/o cells |
Publications (3)
Publication Number | Publication Date |
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JP2006523036A JP2006523036A (ja) | 2006-10-05 |
JP2006523036A5 JP2006523036A5 (ja) | 2007-06-07 |
JP4647594B2 true JP4647594B2 (ja) | 2011-03-09 |
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Application Number | Title | Priority Date | Filing Date |
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JP2006509808A Expired - Fee Related JP4647594B2 (ja) | 2003-04-09 | 2004-04-08 | 集積回路チップのi/oセル |
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Country | Link |
---|---|
US (1) | US6717270B1 (ja) |
JP (1) | JP4647594B2 (ja) |
KR (1) | KR101054665B1 (ja) |
CN (1) | CN100435326C (ja) |
TW (1) | TWI337773B (ja) |
WO (1) | WO2004093188A1 (ja) |
Families Citing this family (66)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4170103B2 (ja) * | 2003-01-30 | 2008-10-22 | Necエレクトロニクス株式会社 | 半導体装置、および半導体装置の製造方法 |
TWI220565B (en) * | 2003-02-26 | 2004-08-21 | Realtek Semiconductor Corp | Structure of IC bond pad and its formation method |
JP4357862B2 (ja) * | 2003-04-09 | 2009-11-04 | シャープ株式会社 | 半導体装置 |
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KR20060004930A (ko) | 2006-01-16 |
US6717270B1 (en) | 2004-04-06 |
CN100435326C (zh) | 2008-11-19 |
TWI337773B (en) | 2011-02-21 |
CN1771598A (zh) | 2006-05-10 |
JP2006523036A (ja) | 2006-10-05 |
KR101054665B1 (ko) | 2011-08-08 |
TW200501380A (en) | 2005-01-01 |
WO2004093188A1 (en) | 2004-10-28 |
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