JP5386481B2 - 半導体装置、およびその製造方法 - Google Patents
半導体装置、およびその製造方法 Download PDFInfo
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- JP5386481B2 JP5386481B2 JP2010510998A JP2010510998A JP5386481B2 JP 5386481 B2 JP5386481 B2 JP 5386481B2 JP 2010510998 A JP2010510998 A JP 2010510998A JP 2010510998 A JP2010510998 A JP 2010510998A JP 5386481 B2 JP5386481 B2 JP 5386481B2
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- dielectric layer
- bump
- conductive layer
- electrode
- semiconductor element
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- B33—ADDITIVE MANUFACTURING TECHNOLOGY
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Description
前記素子電極のそれぞれと対応する基板電極が形成され、前記半導体素子が実装される回路基板と、
前記素子電極および基板電極の少なくとも一方に設けられ、前記半導体素子が前記回路基板に実装されたときに、対応する前記素子電極と前記基板電極とを接続するバンプと、を具備し、
少なくとも1つの前記バンプと、当該バンプが設けられた前記素子電極または基板電極との間に誘電体層および抵抗層の少なくとも一方を有する半導体装置を提供する。
本発明の別の好ましい形態の半導体装置は、前記第1導電層の少なくとも1つと他の少なくとも1つとが、誘電体層を間に挟んで対向している。
前記バンプと前記誘電体層との間に、前記第1導電層と広がりの面積が略等しい第2導電層を有する。
〈実施の形態1〉
図1は、本発明の実施の形態1に係る半導体装置の半導体素子の平面図、図2は、同半導体装置の回路基板の平面図である。
図4Aおよび図4Bに示すように、半導体素子1は、素子電極1aのそれぞれのバンプ3が、対応する基板電極2aと当接するように、フェースダウンにて回路基板2の上に載置される。その状態で、一定の荷重が加えられて、バンプ3と基板電極2aとが接合される。これにより、対応する素子電極1aと基板電極2aとがバンプ3を介して接続される。
以下、図5Aおよび図5Bを参照して、本発明の実施の形態2を詳細に説明する。図5Aは、本発明の実施の形態2に係る半導体装置の回路基板の要部の断面図である。図5Bは、図5Aの回路基板に、半導体素子を実装した状態の要部の断面図である。
図5Aおよび図5Bに示すように、実施の形態2においては、回路基板2Gの基板電極2aの上に誘電体層4Gが形成され、その上に、誘電体層4Gを間に挟んで基板電極2aと対向するようにバンプ3が形成されている。
以下、図6Aおよび図6Bを参照して、本発明の実施の形態3を詳細に説明する。図6Aは、本発明の実施の形態3に係る半導体装置の半導体素子の要部の断面図である。図6Bは、図6Aの半導体素子を回路基板に実装した状態の要部の断面図である。
図6Aおよび図6Bに示すように、実施の形態3においては、半導体素子1Hの素子電極1aの上に、誘電体層4に代えて厚みが一定の抵抗層6が形成され、その上にバンプ3が形成される。それ以外の構成は、実施の形態1と同様である。
また、抵抗層6を構成するコンポジット材料の銀とエポキシ樹脂の配合比を変えることによっても抵抗層6の抵抗率を、1.6×10-8Ωm〜1×1016Ωmの範囲で調節することができる。したがって、抵抗層6の厚みを1μm〜30μmの範囲で変えることにより、上記した面積で8.2×10-6Ω〜1.5×1020Ωの範囲で電気抵抗を調節することができる。
なお、抵抗層6およびバンプ3は、回路基板2側に形成されてもよく、半導体素子1および回路基板2の両方に形成されてもよい。
以下、図7Aおよび図7Bを参照して、本発明の実施の形態4を詳細に説明する。図7Aは、本発明の実施の形態4に係る半導体装置の半導体素子の要部の断面図である。図7Bは、図7Aの半導体素子を回路基板に実装した状態の要部の断面図である。
図7Aおよび図7Bに示すように、実施の形態4の半導体装置においては、半導体素子1Iの少なくとも1つの素子電極1aの上に、誘電体層4が形成され、この誘電体層4を間に挟んで当該素子電極1aと対向するようにバンプ3が形成される。また、半導体素子1Iの他の少なくとも1つの素子電極1aに抵抗層6が形成され、この抵抗層6の上にバンプ3が形成される。実施の形態4の半導体装置のそれ以外の構成は、実施の形態1と同様である。
なお、バンプを使用した平行平板コンデンサおよび抵抗器は、回路基板2側に形成してもよく、半導体素子1および回路基板2の両方に形成してもよい。あるいは、バンプを使用した平行平板コンデンサを半導体素子1I側に形成し、抵抗器を回路基板2側に形成することも可能である。また、その逆も可能である。
以下、図8Aおよび図8Bを参照して、本発明の実施の形態5を詳細に説明する。図8Aは、本発明の実施の形態5に係る半導体装置の半導体素子の要部の断面図である。図8Bは、図8Aの半導体素子を回路基板に実装した状態の要部の断面図である。
図8Aおよび図8Bに示すように、実施の形態5の半導体装置においては、半導体素子1Jの素子電極1aの上に第1導電層7が形成され、その上に誘電体層4が形成され、誘電体層4を間に挟んで第1導電層7と対向するようにバンプ3が形成されている。
また、第1導電層7は、上掲した通り、バンプ3と同じ材料から構成することが好ましい。この場合、上述した導電性粒子を光硬化性樹脂に分散させた分散液を使用して形成する方法により第1導電層7、およびバンプ3を形成するものとすれば、同じ生産用機材を用いてそれらを形成できるために、更に好ましい。誘電体層4を、導電性粒子を分散させない光硬化性樹脂により形成するものとすれば、誘電体層4も同じ生産用機材を用いて形成することができるので、更に好ましい。
この静電容量は誘電体層4の厚みを変えることによって調節することが可能である。例えば、誘電体層の厚みを1μm〜1nmの範囲で調節することによって、上記静電容量を、0.3〜350pFの範囲で調節することができる。
なお、本実施の形態5においても、バンプ3を使用した平行平板コンデンサは、回路基板2の基板電極2aに形成してもよく、半導体素子1Jの素子電極1aおよび回路基板2の基板電極2aの両方に形成してもよい。
以下、図9Aおよび図9Bを参照して、本発明の実施の形態6を詳細に説明する。図9Aは、本発明の実施の形態6に係る半導体装置の半導体素子の要部の断面図である。図9Bは、図9Aの半導体素子を回路基板に実装したときの、半導体装置の要部の断面図である。
図9Aおよび図9Bに示すように、実施の形態6の半導体装置においては、半導体素子1Kの素子電極1aの上に第1導電層7が形成され、その上に厚みが一定の抵抗層6が形成され、更にその上にバンプ3が形成されている。実施の形態6のそれ以外の構成は実施の形態5と同様である。
抵抗層6の電気抵抗は、抵抗層6の厚みを変えることによって調節することができる。例えば、抵抗層6の厚みを1〜30μmの範囲で調節することによって電気抵抗を500Ω〜15kΩの範囲で調節することが可能である。
以下、図10Aおよび図10Bを参照して、本発明の実施の形態7を詳細に説明する。図10Aは、本発明の実施の形態7に係る半導体装置の半導体素子の要部の断面図である。図10Bは、図10Aの半導体素子を回路基板に実装したときの、半導体装置の要部の断面図である。
図10Aおよび図10Bに示すように、実施の形態7の半導体装置においては、半導体素子1Lの少なくとも1つの素子電極1aの上に第1導電層7が形成され、この第1導電層7の上に誘電体層4が形成され、この誘電体層4を間に挟んで第1導電層7と対向するようにバンプ3が形成される。また、半導体素子1Lの他の少なくとも1つの素子電極1aの上に第1導電層7が形成され、この第1導電層7の上に抵抗層6が形成され、この抵抗層6の上にバンプ3が形成される。実施の形態7のこれ以外の構成は、実施の形態5および6と同様である。
以下、図11Aおよび図11Bを参照して、本発明の実施の形態8を詳細に説明する。図11Aは、本発明の実施の形態8に係る半導体装置の半導体素子の要部の断面図である。図11Bは、図11Aの半導体素子を回路基板に実装した状態の断面図である。
図11Aおよび図11Bに示すように、実施の形態8の半導体装置においては、半導体素子1Mの少なくとも1つの素子電極1aに第1導電層7Gが形成され、他の少なくとも1つの素子電極1aに別形状の第1導電層7Hが形成され、第1導電層7G、7Hのそれぞれの上に誘電体層4が形成され、この誘電体層4を間に挟んで第1導電層7G、7Hとそれぞれ対向するようにバンプ3が形成される。
なお、実施の形態8においても、第1導電層7G、7H、誘電体層4、バンプ3、並びに別の誘電体層4は、回路基板2側に形成してもよく、半導体素子1Mおよび回路基板2の両方に形成してもよい。また、上述した2つの誘電体層4および別の誘電体層4の少なくとも1つ、または全部を抵抗層6と置き換えることもできる。誘電体層4の少なくとも1つを抵抗層6と置き換えた場合には、上記バンプを使用した接続手段自体に抵抗とコンデンサの並列回路を形成することができ、高周波回路の安定性をさらに向上させることができる。
以下、図12A、図12Bおよび図12Cを参照して、本発明の実施の形態9を詳細に説明する。図12Aは、本発明の実施の形態9に係る半導体装置の半導体素子の配線面側の平面図である。図12Bは、図12AのC−C線における断面図である。図12Cは、図12Aの半導体素子を回路基板に実装したときの、半導体装置の要部の断面図である。
なお、実施の形態9においても、第1導電層7I、誘電体層4Gおよび第2導電層8は、回路基板2側に形成してもよく、半導体素子1および回路基板2の両方に形成してもよい。
以下、図13A、図13Bおよび図13Cを参照して、本発明の実施の形態10を詳細に説明する。図13Aは、本発明の実施の形態10に係る半導体装置の半導体素子の配線面側の平面図である。図13Bは、図13AのD−D線における断面図である。図13Cは、図13Aの半導体素子を回路基板に実装した状態の要部の断面図である。
以下、図14Aおよび図14Bを参照して、本発明の実施の形態11を詳細に説明する。図14Aは、本発明の実施の形態11に係る半導体装置の半導体素子の要部の断面図である。図14Bは、図14Aの半導体素子を回路基板に実装した状態の要部の断面図である。
実施の形態11によれば、半導体素子の素子電極と回路基板の基板電極とを接続する、バンプを使用した接続手段自体に静電容量を備えたコンデンサと電気抵抗を備えた抵抗との並列回路を組み込むことができる。これにより、例えばCPU演算回路やアナログ信号増幅回路を形成することが容易となる。
以下、図15A、図15Bおよび図15Cを参照して、本発明の実施の形態12を詳細に説明する。図15Aは、本発明の実施の形態12に係る半導体装置の半導体素子の配線面側の平面図である。図15Bは、図15AのE−E線における断面図である。図15Cは、図15Aの半導体素子を回路基板に実装した状態の要部の断面図である。
以下、図16Aおよび図16Bを参照して、本発明の実施の形態13を詳細に説明する。図16Aは、本発明の実施の形態13に係る半導体装置の半導体素子の要部の断面図である。図16Bは、図16Aの半導体素子を回路基板に実装したときの、半導体装置の要部の断面図である。
以下、図17Aおよび図17Bを参照して、本発明の実施の形態14を詳細に説明する。図17Aは、本発明の実施の形態14に係る半導体装置の半導体素子の要部の断面図である。図17Bは、図17Aの半導体素子を回路基板に実装した状態の要部の断面図である。
以下、図18を参照して、本発明の実施の形態15を詳細に説明する。図18は、本発明の実施の形態13に係る半導体装置の要部の断面図である。
Claims (6)
- 複数の素子電極が形成された半導体素子と、
前記素子電極のそれぞれと対応する基板電極が形成され、前記半導体素子が実装される回路基板と、
前記素子電極および基板電極の少なくとも一方に設けられ、前記半導体素子が前記回路基板に実装されたときに、対応する前記素子電極と前記基板電極とを接続するバンプと、を具備し、
前記バンプの少なくとも1つと、当該少なくとも1つのバンプが設けられた前記素子電極との間に誘電体層を有する半導体装置であり、
前記誘電体層は、広がりの面積が、当該誘電体層が設けられた前記素子電極の広がりの面積よりも大きく、
前記誘電体層と、当該誘電体層が設けられた前記素子電極との間に更に第1導電層を有し、
前記第1導電層は、当該第1導電層が設けられた前記素子電極との接合部の面積よりも広がりの面積が大きく、
前記誘電体層が前記第1導電層と等しい広がりの面積を有し、
前記バンプと前記誘電体層との間に、前記第1導電層と広がりの面積が等しい第2導電層を有する、半導体装置。 - 複数の素子電極が形成された半導体素子と、
前記素子電極のそれぞれと対応する基板電極が形成され、前記半導体素子が実装される回路基板と、
前記素子電極および基板電極の少なくとも一方に設けられ、前記半導体素子が前記回路基板に実装されたときに、対応する前記素子電極と前記基板電極とを接続するバンプと、を具備し、
前記バンプの少なくとも1つと、当該少なくとも1つのバンプが設けられた前記基板電極との間に誘電体層を有する半導体装置であり、
前記誘電体層は、広がりの面積が、当該誘電体層が設けられた前記基板電極の広がりの面積よりも大きく、
前記誘電体層と、当該誘電体層が設けられた前記基板電極との間に更に第1導電層を有し、
前記第1導電層は、当該第1導電層が設けられた前記基板電極との接合部の面積よりも広がりの面積が大きく、
前記誘電体層が前記第1導電層と等しい広がりの面積を有し、
前記バンプと前記誘電体層との間に、前記第1導電層と広がりの面積が等しい第2導電層を有する、半導体装置。 - 複数の素子電極が形成された半導体素子と、
前記素子電極のそれぞれと対応する基板電極が形成され、前記半導体素子が実装される回路基板と、
前記素子電極および基板電極の少なくとも一方に設けられ、前記半導体素子が前記回路基板に実装されたときに、対応する前記素子電極と前記基板電極とを接続するバンプと、を具備し、
前記バンプの少なくとも1つと、当該少なくとも1つのバンプが設けられた前記素子電極との間に第1誘電体層を有し、
前記バンプの少なくとも1つと、当該少なくとも1つのバンプが設けられた前記基板電極との間に第2誘電体層を有する半導体装置であり、
前記第1誘電体層は、広がりの面積が、当該第1誘電体層が設けられた前記素子電極の広がりの面積よりも大きく、
前記第1誘電体層と、当該第1誘電体層が設けられた前記素子電極との間に更に第1A導電層を有し、
前記第1A導電層は、当該第1A導電層が設けられた前記素子電極との接合部の面積よりも広がりの面積が大きく、
前記第1誘電体層が前記第1A導電層と等しい広がりの面積を有し、
前記バンプと前記第1誘電体層との間に、前記第1A導電層と広がりの面積が等しい第2A導電層を有し、
前記第2誘電体層は、広がりの面積が、当該第2誘電体層が設けられた前記基板電極の広がりの面積よりも大きく、
前記第2誘電体層と、当該第2誘電体層が設けられた前記基板電極との間に更に第1B導電層を有し、
前記第1B導電層は、当該第1B導電層が設けられた前記基板電極との接合部の面積よりも広がりの面積が大きく、
前記第2誘電体層が前記第1B導電層と等しい広がりの面積を有し、
前記バンプと前記第2誘電体層との間に、前記第1B導電層と広がりの面積が等しい第2B導電層を有する、半導体装置。 - 前記バンプの他の少なくとも1つと、当該他の少なくとも1つのバンプが設けられた前記素子電極または基板電極との間に抵抗層を有する請求項1〜3のいずれか1項に記載の半導体装置。
- 前記バンプは、前記第2導電層、前記第2A導電層、または前記第2B導電層との接着面の中心が、当該バンプが設けられた前記素子電極または基板電極から外れている請求項1〜3のいずれか1項に記載の半導体装置。
- 前記バンプが前記第1導電層、前記第1A導電層、または前記第1B導電層よりも柔軟な材料から形成される請求項1〜3のいずれか1項に記載の半導体装置。
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WO2014083782A1 (ja) * | 2012-11-30 | 2014-06-05 | アピックヤマダ株式会社 | レジスト膜形成装置とその方法、導電膜形成および回路形成装置とその方法、電磁波シールド形成装置とその方法、短波長高透過率絶縁膜の成膜装置とその方法、蛍光体の成膜装置とその方法、微量材料合成装置とその方法、樹脂モールド装置、樹脂モールド方法、薄膜形成装置、有機el素子、バンプ形成装置とその方法、配線形成装置とその方法、および、配線構造体 |
JP2014157897A (ja) * | 2013-02-15 | 2014-08-28 | Apic Yamada Corp | レジスト膜形成装置とその方法、導電膜形成および回路形成装置とその方法、電磁波シールド形成装置とその方法、短波長高透過率絶縁膜の成膜装置とその方法、蛍光体の成膜装置とその方法、および、微量材料合成装置とその方法 |
US9536848B2 (en) * | 2014-10-16 | 2017-01-03 | Globalfoundries Inc. | Bond pad structure for low temperature flip chip bonding |
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