JP4467398B2 - 自動配線決定装置 - Google Patents
自動配線決定装置 Download PDFInfo
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Description
11 仮確定手段
12 本確定手段
13 移動手段
14 置換手段
Claims (11)
- 基板上における各パッド部から対応するビア部への最適な配線の位置を、演算処理により自動的に決定する自動配線決定装置であって、
配線の屈曲点の仮位置が並ぶ仮目標ラインを仮確定する仮確定手段であって、前記パッド部から所定の同一方向に引き出された所定の最小引き出し配線の終端部の、前記最小引き出し配線が引き出される方向に係る座標を最高地点座標としたとき、各前記最高地点座標間を結ぶ各線分のうち、前記最小引き出し配線が引き出される方向に関して前記パッド部から最も遠方にある線分を選択する選択手段と、該選択手段で選択された前記線分を結線して前記仮目標ラインを生成する生成手段と、を有する仮確定手段と、
隣接する前記配線間におけるクリアランスおよび前記配線とこれに隣接するビア部との間におけるクリアランスを少なくとも確保するよう前記仮目標ラインを補正することで、本目標ラインを確定する本確定手段と、
を備え、
確定された前記本目標ラインと前記パッド部からの配線との交点の位置を、当該配線の屈曲点として決定することを特徴とする自動配線決定装置。 - 任意に指示される指示目標ライン上の屈曲点上を通過する前記配線と、これに隣接するビア部と、の間におけるクリアランスが確保できない場合、少なくとも該クリアランスが確保されるよう、前記指示目標ラインを、前記最小引き出し配線が引き出される方向の逆方向に向けて移動させる移動手段と、
前記のクリアランスが確保できるときの前記指示目標ラインもしくは前記のクリアランスが確保できないときに少なくとも該クリアランスが確保できるよう移動させた前記指示目標ラインのうち、前記本確定手段で確定された前記本目標ラインよりも前記最小引き出し配線が引き出される方向に関して前記パッド部より遠方にある部分を、前記本確定手段で確定された前記本目標ラインの対応する部分に代えて、新たなる本目標ラインの一部として確定する置換手段と、
をさらに備える請求項1に記載の自動配線決定装置。 - 前記仮確定手段は、
前記所定の同一方向とは異なる方向に引き出された前記最小引き出し配線を、前記異なる方向に向けて、他の前記最小引き出し配線とのクリアランスを維持できる地点まで延長する第1の延長手段と、
該第1の延長手段によって延長された前記最小引き出し配線を、前記クリアランスを維持できる地点において前記所定の同一方向に向けて屈曲させた上で、前記仮目標ラインまでさらに延長する第2の延長手段と、
をさらに有する請求項1に記載の自動配線決定装置。 - 前記本確定手段は、
前記仮目標ライン上の前記屈曲点で前記最小引き出し配線からの配線を屈曲させようとするときに、隣接する前記配線間におけるクリアランスが確保できるか否かを判定する第1の検査手段と、
該第1の検査手段によって前記のクリアランスが確保できないと判定された場合、少なくとも前記のクリアランスが確保される地点が前記屈曲点となるよう、前記仮目標ラインを、前記最小引き出し配線が引き出される方向に向けて移動させることで補正する補正手段と、
を有する請求項1に記載の自動配線決定装置。 - 前記本確定手段は、
前記補正手段によって得られた補正された前記仮目標ラインまで前記最小引き出し配線を延長する第3の延長手段をさらに有する請求項4に記載の自動配線決定装置。 - 前記本確定手段は、
前記仮目標ライン上の前記屈曲点で前記最小引き出し配線からの配線を屈曲させようとするときに前記配線とこれに隣接する前記ビア部との間におけるクリアランスが確保できるか否かを判定する第2の検査手段と、
該第2の検査手段によって前記のクリアランスが確保できないと判定された場合、前記のクリアランスを確保するために必要である、前記最小引き出し配線が引き出される方向の逆方向に向けた戻り量を算出する第1の算出手段と、
必要である前記戻り量を確保することができる新たなる前記仮目標ラインの開始点であって、いずれか1つの前記最小引き出し配線上における屈曲点の位置に一致する開始点、を算出する第2の算出手段と、
をさらに備え、
前記第2の算出手段によって算出された前記開始点を有する前記新たなる仮目標ラインについて前記仮確定手段における処理と同様の処理を再度実行し、かつ、前記仮確定手段における処理の再度の実行で得られた前記新たなる仮目標ラインについて前記本確定手段における処理と同様の処理を再度実行することで、前記本目標ラインを生成する請求項1または5に記載の自動配線決定装置。 - 前記第1の算出手段は、
前記配線間のクリアランスを最小限確保するように仮に設定した前記仮目標ラインまで各前記最小引き出し線を延長した場合における、各前記最小引き出し線の延長量の総和である第1のパラメータと、
前記仮確定手段によって仮確定した前記仮目標ラインと、クリアランス検査対象となる前記最小引き出し配線を延長した配線と、の交点の、前記最小引き出し配線が引き出される方向に係る座標である第2のパラメータと、
前記第2の検査手段によるクリアランス検査基準となる前記ビア部とのクリアランスを最小限確保する地点についての、前記最小引き出し配線が引き出される方向に関する座標である第3のパラメータと、
に基づいて前記戻り量を算出する請求項6に記載の自動配線決定装置。 - 前記第1の算出手段は、前記第3のパラメータから、前記第1のパラメータおよび前記第2のパラメータを減算することにより、前記戻り量を算出する請求項7に記載の自動配線決定装置。
- 略一列に並ぶ前記各パッド部の配列に対し、該配列の両端における各前記パッド部を演算処理開始点として該配列の両方向から前記仮確定手段および前記本確定手段がそれぞれの処理を実行することで、前記本目標ラインを確定する請求項1に記載の自動配線決定装置。
- 前記配列の両方向から前記仮確定手段および前記本確定手段のそれぞれの処理を実行することで得られた2つの前記本目標ラインの合流点が前記最小引き出し配線のいずれの上にも位置しない場合、一方の前記本目標ラインに対していずれか1つの前記最小引き出し配線上で合流するよう、他の一方の前記本目標ラインを、該他の一方の前記本目標ラインの向う方向が変わる地点においてさらに屈曲させる調整手段をさらに備える請求項9に記載の自動配線決定装置。
- 基板上における各パッド部から対応するビア部への最適な配線の位置を、演算処理により自動的に決定する自動配線決定装置であって、
配線の屈曲点の位置が並ぶ目標ラインを設定し、設定された前記目標ラインと前記パッド部からの配線との交点の位置を、当該配線の屈曲点として決定する自動配線決定装置において、
前記パッド部から所定の同一方向に引き出された所定の最小引き出し配線の終端部の座標位置を最高地点座標としたとき、各前記最高地点座標間を結ぶ各線分のうち、前記最小引き出し配線が引き出される方向に関して前記パッド部から最も遠方にある線分を選択する選択手段と、
該選択手段で選択された前記線分を結線して前記目標ラインを生成する生成手段と、
を備えることを特徴とする自動配線決定装置。
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JP2004292571A JP4467398B2 (ja) | 2004-10-05 | 2004-10-05 | 自動配線決定装置 |
US11/243,879 US7469397B2 (en) | 2004-10-05 | 2005-10-04 | Automatic trace determination method and apparatus for automatically determining optimal trace positions on substrate using computation |
EP05256201A EP1645980A3 (en) | 2004-10-05 | 2005-10-04 | Method and apparatus for automatically determining optimal trace positions on a substrate |
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JP4467398B2 true JP4467398B2 (ja) | 2010-05-26 |
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JP2008009851A (ja) * | 2006-06-30 | 2008-01-17 | Shinko Electric Ind Co Ltd | 自動配線整形方法 |
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JP2001015637A (ja) * | 1999-06-30 | 2001-01-19 | Mitsubishi Electric Corp | 回路配線方式及び回路配線方法及び半導体パッケージ及び半導体パッケージ基板 |
JP2002008300A (ja) | 2000-06-19 | 2002-01-11 | Sanyo Electric Co Ltd | 光ディスク記録再生装置 |
JP3786398B2 (ja) | 2000-09-07 | 2006-06-14 | 新光電気工業株式会社 | 半導体パッケージの配線方法 |
JP2002092061A (ja) * | 2000-09-19 | 2002-03-29 | Shinko Electric Ind Co Ltd | 半導体パッケージの配線編集方法 |
US6938234B1 (en) * | 2002-01-22 | 2005-08-30 | Cadence Design Systems, Inc. | Method and apparatus for defining vias |
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