JP5645821B2 - ハロ炭化水素ポリマーコーティング - Google Patents
ハロ炭化水素ポリマーコーティング Download PDFInfo
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- JP5645821B2 JP5645821B2 JP2011523441A JP2011523441A JP5645821B2 JP 5645821 B2 JP5645821 B2 JP 5645821B2 JP 2011523441 A JP2011523441 A JP 2011523441A JP 2011523441 A JP2011523441 A JP 2011523441A JP 5645821 B2 JP5645821 B2 JP 5645821B2
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Description
・ ポリテトラフルオロエチレン(PTFE)、PTFE系材料、フッ素化炭化水素、塩素化フッ素化炭化水素、ハロゲン化炭化水素、及びハロ炭化水素、並びにコポリマー、オリゴマー、マルチポリマー、マルチモノマーのポリマー、ポリマー混合物、ポリマーの相互侵入網目(IPN)、ブレンド、アロイ、分枝鎖ポリマー、グラフトコポリマー、及びこれらの材料の架橋結合変異体。好ましい実施形態において、コーティング18中の該ハロ炭化水素ポリマーは、ポリテトラフルオロエチレン(PTFE)系材料であり、特に、変性された又は未変性のポリテトラフルオロエチレン(PTFE)である。
特性を改変するように構成することができる。濡れとは、(i)コーティングを施したPCB10の表面の水等の液体による濡れ、(ii)はんだ付けプロセス中のコーティング18のはんだ38及び/又はフラックス42による濡れ、並びに/或いは(iii)コーティング18を変化させた(例えば局部的に除去した)後の導電性トラック16のはんだ38による濡れを指すことができる。コーティング18の濡れ特性は、任意の適当な方法により改変することができる。例えば、コーティング18の濡れ特性は反応性ガスプラズマ、例えば四フッ化炭素(CF4)等を用いるプラズマエッチングにより改変することができる。別の例として、コーティング18の濡れ特性は、例えば、水素、酸素、アルゴン、窒素、及び/又は上記気体の組合せに基づくガスプラズマ等の所望の表面活性化を提供するために選択されるガスプラズマを用いて、プラズマ活性化により改変することができる。更に別の例として、コーティング18の濡れ特性は、プラズマ重合により、並びに/又はハロ炭化水素(例えば、フルオロ炭化水素、クロロ炭化水素等)及び/若しくは非ハロ炭化水素(例えば、ポリエチレン、ポリプロピレン等)の変異体及び/又は混合物を使用することによって改変することができる。更に別の例として、コーティング18の濡れ特性は、例えば、強酸(例えば、硫酸、硝酸等)及び/又は酸化剤(例えば、過酸化水素)を用いて、コーティング18の表面活性化及び/又は表面粗度を改変することができる液体ベースの化学エッチングによって改変することができる。いくつかの実施形態において、該コーティング18の濡れ特性は、異なる濡れ特性を有する、PCB10の異なる領域を提供するように空間的に制御することができる。高められた濡れ特性を有する、(PCB10表面上の)領域は、液体がPCB10を横切って流れる方向を選択的に制御することができる。したがって、そのような領域は、その液体が損傷を与えない領域に向けて液体を流し出す「溝」としての役割を果たすことができる。
・ 異なるハロ炭化水素材料を組み合わせること及び異なる材料の層44間の勾配を調整することを含んでもよい、コーティング18中のハロ炭化水素材料の組成
いくつかの実施形態を以下に示す。
項1
絶縁材料を含む基板と、
該基板の少なくとも1つの表面に取り付けられた複数の導電性トラックと、
該基板の少なくとも1つの表面に堆積された多層コーティング(該多層コーティングは、該複数の導電性トラックの少なくとも一部を覆っており、該多層コーティングは、ハロ炭化水素ポリマーから形成された少なくとも1つの層を含む)と、
はんだ接合により少なくとも1つの導電性トラックに連結されている少なくとも1つの電気部品(該はんだ接合は、該はんだ接合が該多層コーティングと接するように、該多層のコーティングを通してはんだ付けされている)と
を含む、プリント回路基板。
項2
該多層コーティングが、1ナノメートル〜10マイクロメートルの厚さを有する、項1に記載のプリント回路基板。
項3
該多層コーティングが、互いに区別できる第1の層及び第2の層を含み、該第1の層及び該第2の層が異なるポリマーを含んでいる、項1に記載のプリント回路基板。
項4
該多層コーティングが、特定の種類のポリマーを含む第1の層を含み、
該多層コーティングが、該特定の種類のポリマーを含む第2の層を含み、
該第1の層の該ポリマーが、該第2の層の該ポリマーと、次の特性:
分子量、
化学組成、
構造、
形状、及び
空隙率
の少なくとも1つに関して異なる、項1に記載のプリント回路基板。
項5
該多層コーティングが、第1のポリマーの特定の層と第2のポリマーの別の層とを含み、該層が互いに接しており、
該多層コーティングが、該第1のポリマーから該第2のポリマーに移行するように、該層が勾配を有している、項1に記載のプリント回路基板。
項6
該多層コーティングが、ハロ炭化水素ポリマーから形成されている特定の層と、ハロゲン原子を含まないポリマーから形成されている別の層とを含む、項1に記載のプリント回路基板。
項7
ハロゲン化金属層が該複数の導電性トラックの少なくとも一部を覆うように、該多層コーティングが堆積されている、項1に記載のプリント回路基板。
項8
該複数の導電性トラックと該多層コーティングとの間にハロゲン化金属層が本質的に存在しないように、該多層コーティングが堆積されている、項1に記載のプリント回路基板。
項9
該ハロ炭化水素ポリマーが、1つ又は複数のフルオロ炭化水素を含む、項1に記載のプリント回路基板。
項10
該多層コーティングが、
フルオロ炭化水素材料を含む第1の層、及び
クロロフルオロ炭化水素材料を含む第2の層
を含む、項1に記載のプリント回路基板。
項11
該第2の層が、該第1の層と該複数の導電性トラックとの間に形成されている、項10に記載のプリント回路基板。
項12
該第1の層が、該第2の層と該複数の導電性トラックとの間に形成されている、項10に記載のプリント回路基板。
項13
実質的に連続した該多層コーティングの層が該基板に堆積された後、該はんだ接合が該基板の特定の領域に形成され、
該はんだ付けが、該基板の他の領域における該多層コーティングを変化させることなく、該基板の該特定の領域において該多層コーティングを変化させる、
項1に記載のプリント回路基板。
項14
該はんだ付けが、該多層コーティングを該基板の他の領域から除去することなく、該多層コーティングを該基板の該特定領域から除去することによって、該基板の該特定領域における該多層コーティングを変化させる、項13に記載のプリント回路基板。
項15
該基板の第1の領域が、該多層コーティングにより被覆されており、
該基板の第2の領域が、別のコーティングにより被覆されている、
項1に記載のプリント回路基板。
項16
該基板の少なくとも1つの表面に取り付けられているコンタクトを更に含む(該コンタクトは該単層コーティングにより被覆されており、該コンタクトは、該単層コーティングを通して電気信号を別のコンタクトに伝えるように操作できる)、項15に記載のプリント回路基板。
項17
該基板の少なくとも1つの表面に取り付けられているコンタクトを更に含む(該コンタクトは該多層コーティングにより被覆されており、該コンタクトは該多層コーティングを通して電気信号を別のコンタクトに伝えるように操作できる)、項1に記載のプリント回路基板。
項18
ワイヤボンドによって少なくとも1つの導電性トラックに接続されている少なくとも1つのワイヤを更に含み、該ワイヤボンドが該多層コーティングと接するように、該ワイヤボンドは該多層コーティングを通して形成されている、項1に記載のプリント回路基板。
項19
該基板の特定領域においてフラックスを加熱することにより、該基板の他の領域において該多層コーティングを変化させることなく、該基板の該特定の領域で該多層コーティングを変化させる、項1に記載のプリント回路基板。
項20
該基板が、
エポキシ樹脂で接着したガラス布、
合成樹脂で接着した紙、
エポキシ樹脂、
コットン紙、
ボール紙、
天然木材に基づく材料、及び
合成木材に基づく材料
の少なくとも1つを含む、項1に記載のプリント回路基板。
項21
該多層コーティングの少なくとも1つの層が金属材料を含む、項1に記載のプリント回路基板。
項22
絶縁材料を含む基板の少なくとも1つの表面に複数の導電性トラックを取り付けるステップと、
該基板の該少なくとも1つの表面に多層コーティングを堆積させるステップ(該多層コーティングは、該複数の導電性トラックの少なくとも一部を覆い、該多層コーティングの少なくとも1層は、少なくとも1つのハロ炭化水素ポリマーを含む)と、
該多層コーティングを堆積させた後、該多層コーティングを通してはんだ付けして、電気部品と該基板に取り付けられている少なくとも1つの導電性トラックとの間にはんだ接合を形成するステップ(該はんだ接合は該多層コーティングと接している)と
を含む方法。
項23
該多層コーティングが、1ナノメートル〜10マイクロメートルの厚さを有する、項22に記載の方法。
項24
該多層コーティングが、互いに区別できる第1の層及び第2の層を含み、該第1の層及び該第2の層が異なるポリマーを含む、項22に記載の方法。
項25
該多層コーティングが、特定の種類のポリマーを含む第1の層を含み、
該多層コーティングが、該特定の種類のポリマーを含む第2の層を含み、
該第1の層の該ポリマーが、次の特性:
分子量、
化学組成、
構造、
形状、及び
空隙率
の少なくとも1つに関して該第2の層の該ポリマーと異なる、項22に記載の方法。
項26
該多層コーティングが、第1のポリマーの特定の層と第2のポリマーの別の層とを含み、該層が互いに接しており、
該層が、該多層コーティングが該第1のポリマーから該第2のポリマーに移行するように勾配を有している、項22に記載の方法。
項27
該多層コーティングが、ハロ炭化水素ポリマーから形成されている特定の層と、ハロゲン原子を含まないポリマーから形成されている別の層とを含む、項22に記載の方法。
項28
ハロゲン化金属層が該複数の導電性トラックの少なくとも一部を覆うように、該コーティングが堆積されている、項22に記載の方法。
項29
該複数の導電性トラックと該多層コーティングとの間にハロゲン化金属層が本質的に存在しないように、該コーティングが堆積されている、項22に記載の方法。
項30
該ハロ炭化水素ポリマーが、1つ又は複数のフルオロ炭化水素を含む、項22に記載の方法。
項31
該多層コーティングが、
フルオロ炭化水素材料を含む第1の層、及び
クロロフルオロ炭化水素材料を含む第2の層
を含む、項22に記載の方法。
項32
該第2の層が、該第1の層と該複数の導電性トラックとの間に形成されている、項31に記載の方法。
項33
該第1の層が、該第2の層と該複数の導電性トラックとの間に形成されている、項31に記載の方法。
項34
実質的に連続した該多層コーティングの層が該基板に堆積された後、該はんだ接合が該基板の特定の領域に形成され、
該はんだ付けが、該基板の他の領域における該多層コーティングを変化させることなく、該基板の該特定の領域において該多層コーティングを変化させる、
項22に記載の方法。
項35
該はんだ付けが、該多層コーティングを該基板の他の領域から除去することなく、該多層コーティングを該基板の該特定領域から除去することによって、該基板の該特定領域において該多層コーティングを変化させる、項34に記載の方法。
項36
該基板の第1の領域が、該多層コーティングにより被覆され、
該基板の第2の領域が、別のコーティングにより被覆される、項22に記載の方法。
項37
該基板の少なくとも1つの表面にコンタクトを取り付けるステップを更に含む(該コンタクトは該単層コーティングにより被覆され、該コンタクトは、該単層コーティングを通して別のコンタクトに電気信号を伝えるように操作できる)、項36に記載の方法。
項38
該基板の少なくとも1つの表面にコンタクトを取り付けるステップを更に含む(該コンタクトは該多層コーティングにより被覆され、該コンタクトは、該多層コーティングを通して別のコンタクトに電気信号を伝えるように操作できる)、項22に記載の方法。
項39
該多層コーティングを通してワイヤボンドを形成するステップを更に含む(該ワイヤボンドは少なくとも1つのワイヤを少なくとも1つの導電性トラックに接続し、該ワイヤボンドは該多層コーティングと接する)、項22に記載の方法。
項40
該多層コーティングの濡れ特性を以下:
プラズマ洗浄、
プラズマエッチング、
プラズマ活性化、
プラズマ重合及びプラズマコーティング、並びに
液体ベースの化学エッチング
の少なくとも1つによって改変するステップを更に含む、項22に記載の方法。
項41
該多層コーティングが、以下:
プラズマ堆積、
化学気相堆積、
有機金属化学気相堆積、
分子線エピタキシー、
スプレーコーティング、
スパッタリング、及び
スピンコーティング
の少なくとも1つによって堆積される、項22に記載の方法。
項42
該基板が、プリント回路基板を含み、該コーティングが該プリント回路基板を難燃性にする、項22に記載の方法。
項43
該はんだ付けの間に、該多層コーティングの濡れを調節するステップを更に含む、項22に記載の方法。
項44
コーティングのはんだ付け性と保護性とを均衡させるステップを更に含む(該均衡は、該多層コーティングの空隙率及び濡れを調節することによって少なくとも一部は達成される)、項22に記載の方法。
項45
該はんだ接合の形成後に、該プリント回路基板にコンフォーマルコーティングを堆積させるステップを更に含む(該コンフォーマルコーティングは少なくとも1つのハロ炭化水素ポリマーを含み、該コンフォーマルコーティングは、次の特性:
はんだ貫通能力、
該コンフォーマルコーティングを通したワイヤボンドを可能にする能力、及び
該コンフォーマルコーティングを被覆した表面と垂直な軸に沿った電気伝導度
の少なくとも1つを有する)、項22に記載の方法。
項46
該はんだ接合の形成後に、該プリント回路基板にコンフォーマルコーティングを堆積させるステップを更に含む(該コンフォーマルコーティングが、少なくとも1つのハロ炭化水素ポリマーを含み、
該コンフォーマルコーティングが、該コンフォーマルコーティングを被覆した表面と垂直な軸に沿って絶縁性であり、
該コンフォーマルコーティングが、次の特性:
はんだ貫通能力、及び
該コンフォーマルコーティングを通したワイヤボンドを可能にする能力
の少なくとも1つを有する)、項22に記載の方法。
項47
絶縁材料を含む基板と、
該基板の少なくとも1つの表面に取り付けられた複数の導電性トラックと、
該基板の少なくとも1つの表面に堆積されたコーティング(該コーティングは、該複数の導電性トラックの少なくとも一部を覆っており、少なくとも1つのハロ炭化水素ポリマーを含む)と、
ワイヤボンドによって少なくとも1つの導電性トラックに接続されている少なくとも1つの導電性ワイヤ(該ワイヤボンドは、該ワイヤボンドが該コーティングと接するように、該コーティングを予め除去することなくコーティングを通して形成されている)と
を含む、プリント回路基板。
項48
該ワイヤボンドが、該基板の少なくとも1つの表面に平行な平面に沿って該コーティングと接している、項47に記載のプリント回路基板。
項49
該ワイヤボンドが、
ボールボンド、及び
ウェッジボンド
の少なくとも1つである、項47に記載のプリント回路基板。
項50
該ワイヤが、
金、
アルミニウム、
銀、
銅、
ニッケル、及び
鉄、
の少なくとも1つを含む、項47に記載のプリント回路基板。
項51
該ワイヤの少なくとも一部が該コーティングにより覆われている、項47に記載のプリント回路基板。
項52
該コーティングが、1ナノメートル〜2マイクロメートルの厚さを有する、項47に記載のプリント回路基板。
項53
該コーティングが、10ナノメートル〜100ナノメートルの厚さを有する、項47に記載のプリント回路基板。
項54
該少なくとも1つのハロ炭化水素ポリマーが、フルオロ炭化水素ポリマーである、項47に記載のプリント回路基板。
項55
該ワイヤボンドが該基板の特定領域に形成されており、該ワイヤボンドの形成が、該基板の他の領域において該コーティングを変化させることなく、該特定領域において該コーティングを変化させる、項47に記載のプリント回路基板。
項56
該コーティングが、該ワイヤボンドが形成される前に該基板の該特定領域から除去される、
該ワイヤボンドの形成が、該基板の該特定領域から該コーティングを選択的に除去することによって、該基板の該特定領域において該コーティングを変化させる、項55に記載のプリント回路基板。
項57
はんだ接合によって少なくとも1つの導電性トラックに接続された少なくとも1つの電気部品を更に含んでいる(該はんだ接合が該コーティングと接するように、該はんだ接合は該コーティングを通してはんだ付けされている)、項47に記載のプリント回路基板。
項58
該ワイヤボンドが、該基板の第1の領域に形成されており(該第1の領域は該コーティングにより被覆されている)、更に
該基板の第2の領域における少なくとも1つの導電性トラックにはんだ接合によって接続されている少なくとも1つの電気部品を含んでいる(該第2の領域は、別のコーティングにより被覆されている)、項47に記載のプリント回路基板。
項59
該基板の少なくとも1つの表面に取り付けられているコンタクトを更に含んでいる(該コンタクトは該コーティングにより被覆されており、該コンタクトは、該コーティングを通して別のコンタクトに電気信号を伝えるように操作できる)、項47に記載のプリント回路基板。
項60
ハロゲン化金属層が、該複数の導電性トラックの少なくとも一部を覆うように、該コーティングが堆積されている、項47に記載のプリント回路基板。
項61
該複数の導電性トラックと該コーティングとの間にハロゲン化金属層が本質的に存在しないように、該コーティングが堆積されている、項47に記載のプリント回路基板。
項62
絶縁材料を含む基板の少なくとも1つの表面に複数の導電性トラックを取り付けるステップと、
該基板の少なくとも1つの表面にコーティングを堆積させるステップ(該コーティングは、該複数の導電性トラックの少なくとも一部を覆い、該コーティングは、少なくとも1つのハロ炭化水素ポリマーを含む)と、
少なくとも1つの導電性ワイヤと少なくとも1つの導電性トラックとの間にワイヤボンドを形成するステップ(該ワイヤボンドは、該ワイヤボンドが該コーティングと接するように、該コーティングを予め除去することなく該コーティングを通して形成されている)と
を含む方法。
項63
該ワイヤボンドが、該基板の少なくとも1つの表面に平行な平面に沿って、該コーティングと接している、項62に記載の方法。
項64
該ワイヤボンドが、
ボールボンド、及び
ウェッジボンド
の少なくとも1つである、項62に記載の方法。
項65
該ワイヤが、
金、
アルミニウム、
銀、
銅、
ニッケル、及び
鉄
の少なくとも1つを含む、項62に記載の方法。
項66
該ワイヤボンドを形成する前に、該ワイヤの少なくとも一部が該コーティングにより覆われる、項62に記載の方法。
項67
該コーティングが、1ナノメートル〜2マイクロメートルの厚さを有する、項62に記載の方法。
項68
該コーティングが、10ナノメートル〜100ナノメートルの厚さを有する、項62に記載の方法。
項69
該少なくとも1つのハロ炭化水素ポリマーが、フルオロ炭化水素ポリマーである、項62に記載の方法。
項70
該ワイヤボンドが該基板の特定領域に形成されており、該ワイヤボンドの形成が、該基板の他の領域において該コーティングを変化させることなく、該特定領域において該コーティングを変化させる、項62に記載の方法。
項71
該コーティングが、該ワイヤボンドの形成前に該基板の該特定領域から除去されず、
該ワイヤボンドの形成が、該基板の該特定領域から該コーティングを選択的に除去することによって、該基板の該特定領域における該コーティング変化させる、項70に記載の方法。
項72
該コーティングを堆積させた後、電気部品と該基板に取り付けられた少なくとも1つの導電性トラックとの間に、該コーティングを通してはんだ付けをして、はんだ接合を形成するステップ(該はんだ接合は該コーティングと接している)を更に含む、項62に記載の方法。
項73
該ワイヤボンドが、該基板の第1の領域で形成され(該第1の領域は該コーティングにより被覆される)、更に
該基板の第2の領域に別のコーティングを堆積するステップ、及び
該基板の該第2の領域の該別のコーティングを通してはんだ付けをして、電気部品と該基板に取り付けられた少なくとも1つの導電性トラックとの間にはんだ接合を形成するステップ
を含む、項62に記載の方法。
項74
該基板の少なくとも1つの表面にコンタクトを取り付けるステップを更に含む(該コンタクトは該コーティングにより被覆され、該コンタクトは、該コーティングを通して別のコンタクトに電気信号を伝えるように操作できる)、項62に記載の方法。
項75
該コーティングを堆積するステップが、該コーティングの第1の層を堆積するステップを含み、該ワイヤボンドの形成後に該基板の該少なくとも1つの表面上に該コーティングの第2の層を堆積するステップを更に含む(該コーティングの該第2の層は、該ワイヤボンドの少なくとも一部を覆っている)、項62に記載の方法。
項76
該ワイヤボンドが、ベアダイワイヤボンドである、項62に記載の方法。
項77
該基板が、プリント回路基板中に含まれており、
該ワイヤボンドの形成後に、該プリント回路基板にコンフォーマルコーティングを堆積させるステップを更に含む(該コンフォーマルコーティングは、少なくとも1つのハロ炭化水素ポリマーを含み、該コンフォーマルコーティングが、次の特性:
はんだ貫通能力、
該コンフォーマルコーティングを通したワイヤボンドを可能にする能力、及び
該コンフォーマルコーティングを被覆した表面と垂直な軸に沿った導電率
の少なくとも1つを有する、項62に記載の方法。
項78
絶縁材料を含む基板と、
該基板の少なくとも1つの表面に取り付けた第1のコンタクトと、
該第1のコンタクトの少なくとも1つの表面に堆積したコーティング(該コーティングは、少なくとも1つのハロ炭化水素ポリマーを含んでおり、該第1のコンタクトは、該コーティングを除去することなく、該コーティングを通して第2のコンタクトに電気信号を伝えるように操作できる)と
を含む装置。
項79
該コーティングが、該第1のコンタクトの該少なくとも1つの表面と垂直な軸に沿った電気伝導度よりも、該第1のコンタクトの少なくとも1つの表面に平行な軸に沿ってより大きい電気伝導度を示す、項78に記載の装置。
項80
該コーティングが、該第1のコンタクトの該少なくとも1つの表面に垂直な軸に沿った導体であり、
該コーティングが、該第1のコンタクトの該少なくとも1つの表面と平行な軸に沿った絶縁体である、項78に記載の装置。
項81
該第2のコンタクトが、第1の位置から第2の位置に移動可能であり、該第2のコンタクトが該第2の位置にあるとき、該第1のコンタクトが該コーティングを通して該第2のコンタクトに電気信号を伝える、項78に記載の装置。
項82
該第1のコンタクトが、
ステンレス鋼、
銀、
炭素、
ニッケル、
金、及び
スズ
の少なくとも1つを含む、項78に記載の装置。
項83
該第1のコンタクトが、プリント回路基板中に含まれており、該第2のコンタクトが、キーパッド中のキーに含まれている、項78に記載の装置。
項84
該第1のコンタクトが、センサ中に含まれている、項78に記載の装置。
項85
該センサが、検体の存在を検出するように機能する、項84に記載の装置。
項86
該第1のコンタクトが、
炭素、
導電性糊、
導電性接着剤、
導電性インク、及び
銀充填エポキシ
の少なくとも1つを含む、項84に記載の装置。
項87
該第1のコンタクトが電極である、項86に記載の装置。
項88
該コーティングが、1ナノメートル〜2マイクロメートルの厚さを有する、項78に記載の装置。
項89
該コーティングが、10ナノメートル〜100ナノメートルの厚さを有する、項78に記載の装置。
項90
該コーティングが、該第1のコンタクトの酸化、腐食及び水分吸収を防ぐ、項78に記載の装置。
項91
該少なくとも1つのハロ炭化水素ポリマーが、フルオロ炭化水素ポリマーを含む、項78に記載の装置。
項92
該第1のコンタクトが、テストポイントとして機能する、項78に記載の装置。
項93
絶縁材料を含む基板の少なくとも1つの表面に、第1のコンタクトを取り付けるステップと、
該第1のコンタクトの少なくとも1つの表面にコーティングを堆積させるステップ(該コーティングは、少なくとも1つのハロ炭化水素ポリマーを含んでおり、該第1のコンタクトは、該コーティングを除去することなく、該コーティングを通して第2のコンタクトに電気信号を伝えるように操作できる)と
を含む方法。
項94
該コーティングが、該第1のコンタクトの該少なくとも1つの表面と垂直な軸に沿った電気伝導度よりも、該第1のコンタクトの該少なくとも1つの表面に平行な軸に沿ってより大きい電気伝導度を示す、項93に記載の方法。
項95
該コーティングが、該第1のコンタクトの該少なくとも1つの表面に垂直な軸に沿った導体であり、
該コーティングが、該第1のコンタクトの該少なくとも1つの表面と平行な軸に沿った絶縁体である、項93に記載の方法。
項96
該第2のコンタクトが、第1の位置から第2の位置に移動可能であり、
該第2のコンタクトが該第2の位置にあるとき、該第1のコンタクトが該コーティングを通して該第2のコンタクトに電気信号を伝える、項93に記載の方法。
項97
該第1のコンタクトが、
ステンレス鋼、
銀、
炭素、
ニッケル、
金、及び
スズ
の少なくとも1つを含む、項93に記載の方法。
項98
該第1のコンタクトが、プリント回路基板中に含まれており、該第2のコンタクトが、キーパッド中のキーに含まれている、項93に記載の方法。
項99
該第1のコンタクトが、センサ中に含まれている、項93に記載の方法。
項100
該センサが、検体の存在を検出するように機能する、項99に記載の方法。
項101
該第1のコンタクトが、
炭素、
導電性糊、
導電性接着剤、
導電性インク、及び
銀充填エポキシ
の少なくとも1つを含む、項99に記載の方法。
項102
該第1のコンタクトが電極である、項93に記載の方法。
項103
該コーティングが、1ナノメートル〜2マイクロメートルの厚さを有する、項93に記載の方法。
項104
該コーティングが、10ナノメートル〜100ナノメートルの厚さを有する、項93に記載の方法。
項105
該コーティングが、該第1のコンタクトの酸化、腐食及び水分吸収を防ぐ、項93に記載の方法。
項106
該少なくとも1つのハロ炭化水素ポリマーが、フルオロ炭化水素ポリマーを含む、項93に記載の方法。
項107
該コーティングが、プラズマ堆積によって堆積される、項93に記載の方法。
項108
該第1のコンタクトが、テストポイントとして機能する、項93に記載の方法。
Claims (23)
- 絶縁材料を含む基板と、
該基板の少なくとも1つの表面に取り付けられた複数の導電性トラックと、
該基板の少なくとも1つの表面に堆積されたコーティング、該コーティングは、該複数の導電性トラックの少なくとも一部を覆っており、少なくとも1つのハロ炭化水素ポリマーを含み、10ナノメートル〜2マイクロメートルの厚さを有する、と、
ワイヤボンドによって少なくとも1つの導電性トラックに接続されている少なくとも1つの導電性ワイヤ、該ワイヤボンドは、該ワイヤボンドが該コーティングと接するように、該コーティングを予め除去することなく該コーティングを通して形成されている、と
を含む、プリント回路基板であって、
該ワイヤボンドが、該基板の特定領域に形成されており、該コーティングが、該ワイヤボンドが形成される前に該基板の該特定領域から除去されず、該ワイヤボンドの形成が、該基板の他の領域において該コーティングを変化させることなく、該基板の該特定領域から該コーティングを選択的に除去することによって、該特定領域において該コーティングを変化させる、前記プリント回路基板。 - 該ワイヤボンドが、該基板の少なくとも1つの表面に平行な平面に沿って該コーティングと接している、請求項1に記載のプリント回路基板。
- 該ワイヤボンドが、ボールボンド、及びウェッジボンドの少なくとも1つである、請求項1に記載のプリント回路基板。
- 該ワイヤが、金、アルミニウム、銀、銅、ニッケル、及び鉄の少なくとも1つを含む、請求項1に記載のプリント回路基板。
- 該ワイヤの少なくとも一部が該コーティングにより覆われている、請求項1に記載のプリント回路基板。
- 該コーティングが、10ナノメートル〜100ナノメートルの厚さを有する、請求項1に記載のプリント回路基板。
- 該少なくとも1つのハロ炭化水素ポリマーが、フルオロ炭化水素ポリマーである、請求項1に記載のプリント回路基板。
- はんだ接合によって少なくとも1つの導電性トラックに接続された少なくとも1つの電気部品を更に含んでおり、該はんだ接合が該コーティングと接するように、該はんだ接合は該コーティングを通してはんだ付けされている、請求項1に記載のプリント回路基板。
- 該ワイヤボンドが、該基板の第1の領域に形成されており、該第1の領域は該コーティングにより被覆されており、更に該基板の第2の領域における少なくとも1つの導電性トラックにはんだ接合によって接続されている少なくとも1つの電気部品を含んでおり、該第2の領域は、別のコーティングにより被覆されている、請求項1に記載のプリント回路基板。
- ハロゲン化金属層が、該複数の導電性トラックの少なくとも一部を覆うように、該コーティングが堆積されている、請求項1に記載のプリント回路基板。
- 該複数の導電性トラックと該コーティングとの間にハロゲン化金属層が本質的に存在しないように、該コーティングが堆積されている、請求項1に記載のプリント回路基板。
- 絶縁材料を含む基板の少なくとも1つの表面に複数の導電性トラックを取り付けるステップと、
該基板の少なくとも1つの表面にコーティングを堆積させるステップ、該コーティングは、該複数の導電性トラックの少なくとも一部を覆い、該コーティングは、少なくとも1つのハロ炭化水素ポリマーを含み、10ナノメートル〜2マイクロメートルの厚さを有する、と、
少なくとも1つの導電性ワイヤと少なくとも1つの導電性トラックとの間にワイヤボンドを形成するステップ、該ワイヤボンドは、該ワイヤボンドが該コーティングと接するように、該コーティングを予め除去することなく該コーティングを通して形成される、と
を含む方法であって、
該ワイヤボンドが、該基板の特定領域に形成されており、該コーティングが、該ワイヤボンドが形成される前に該基板の該特定領域から除去されず、該ワイヤボンドの形成が、該基板の他の領域において該コーティングを変化させることなく、該基板の該特定領域から該コーティングを選択的に除去することによって、該特定領域において該コーティングを変化させる、前記方法。 - 該ワイヤボンドが、該基板の少なくとも1つの表面に平行な平面に沿って、該コーティングと接している、請求項12に記載の方法。
- 該ワイヤボンドが、ボールボンド、及びウェッジボンドの少なくとも1つである、請求項12に記載の方法。
- 該ワイヤが、金、アルミニウム、銀、銅、ニッケル、及び鉄の少なくとも1つを含む、請求項12に記載の方法。
- 該ワイヤボンドを形成する前に、該ワイヤの少なくとも一部が該コーティングにより覆われる、請求項12に記載の方法。
- 該コーティングが、10ナノメートル〜100ナノメートルの厚さを有する、請求項12に記載の方法。
- 該少なくとも1つのハロ炭化水素ポリマーが、フルオロ炭化水素ポリマーである、請求項12に記載の方法。
- 該コーティングを堆積させた後、電気部品と該基板に取り付けられた少なくとも1つの導電性トラックとの間に、該コーティングを通してはんだ付けをして、はんだ接合を形成するステップ、該はんだ接合は該コーティングと接している、を更に含む、請求項12に記載の方法。
- 該ワイヤボンドが、該基板の第1の領域で形成され、該第1の領域は該コーティングにより被覆されており、更に
該基板の第2の領域に別のコーティングを堆積するステップ、及び
該基板の該第2の領域の該別のコーティングを通してはんだ付けをして、電気部品と該基板に取り付けられた少なくとも1つの導電性トラックとの間にはんだ接合を形成するステップ
を含む、請求項12に記載の方法。 - 該コーティングを堆積するステップが、該コーティングの第1の層を堆積するステップを含み、該ワイヤボンドの形成後に該基板の該少なくとも1つの表面上に該コーティングの第2の層を堆積するステップを更に含み、該コーティングの該第2の層は、該ワイヤボンドの少なくとも一部を覆っている、請求項12に記載の方法。
- 該ワイヤボンドが、ベアダイワイヤボンドである、請求項12に記載の方法。
- 該基板が、プリント回路基板中に含まれており、
該ワイヤボンドの形成後に、該プリント回路基板にコンフォーマルコーティングを堆積させるステップを更に含み、該コンフォーマルコーティングは、少なくとも1つのハロ炭化水素ポリマーを含み、該コンフォーマルコーティングが、次の特性:
はんだ貫通能力、及び
該コンフォーマルコーティングを通したワイヤボンドを可能にする能力
の少なくとも1つを有する、請求項12に記載の方法。
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