JP5363034B2 - 半導体基板、及びその製造方法 - Google Patents
半導体基板、及びその製造方法 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims description 114
- 239000000758 substrate Substances 0.000 title claims description 61
- 238000004519 manufacturing process Methods 0.000 title claims description 19
- 230000007123 defense Effects 0.000 claims description 60
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 description 36
- 230000001681 protective effect Effects 0.000 description 16
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 13
- 238000002161 passivation Methods 0.000 description 13
- 229910052710 silicon Inorganic materials 0.000 description 13
- 239000010703 silicon Substances 0.000 description 13
- 238000005530 etching Methods 0.000 description 7
- 238000000576 coating method Methods 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
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Description
請求項1に係る発明は、
半導体素子が形成された半導体基板本体と、
前記半導体基板本体上に配設されるアライメント用柱状部材と、
前記アライメント用柱状部材を防御するために、前記アライメント用柱状部材の周囲を囲んで前記半導体基板本体上に複数配設される防御用柱状部材であって、下層との接触面積が前記アライメント用柱状部材の下層との接触面積よりも大きい防御用柱状部材と、
前記アライメント用柱状部材及び前記防御用柱状部材を封止する封止膜と、
を備え、
前記アライメント用柱状部材及び前記防御用柱状部材は金属ポストであることを特徴とする半導体基板。
前記防御用柱状部材の径が、前記アライメント用柱状部材の径よりも大きいことを特徴とする請求項1に記載の半導体基板。
前記アライメント用柱状部材が、前記半導体基板の縁部側に設けられ、
且つ前記アライメント用柱状部材の周囲に設けられる複数の前記防御用柱状部材のうち、前記半導体基板の縁部側に設けられる防御用柱状部材が、前記半導体基板の内側に設けられる防御用柱状部材よりも配設間隔が密に配設されている、
ことを特徴とする請求項1に記載の半導体基板。
半導体素子が形成された半導体基板本体を準備する工程と、
前記半導体基板本体上に金属ポストからなるアライメント用柱状部材を形成する工程と、
下層との接触面積が前記アライメント用柱状部材の下層との接触面積よりも大きくなるように前記アライメント用柱状部材の周囲を囲んで前記半導体基板本体上に、前記アライメント用柱状部材を防御するための金属ポストからなる防御用柱状部材を複数形成する工程と、
前記アライメント用柱状部材及び前記防御用柱状部材を封止する封止膜を形成する工程と、
を備えることを特徴とする半導体基板の製造方法。
前記防御用柱状部材を形成する工程において、前記防御用柱状部材の径が前記アライメント用柱状部材の径よりも大きくなるように、前記防御用柱状部材を形成することを特徴とする請求項4に記載の半導体基板の製造方法。
前記アライメント用柱状部材を形成する工程において、前記アライメント用柱状部材を前記半導体基板の縁部側に形成し、
前記防御用柱状部材を形成する工程において、前記半導体基板の縁部側に形成する防御用柱状部材が前記半導体基板の内側に設けられる防御用柱状部材よりも配設間隔が密となるように、複数の前記防御用柱状部材を形成する工程と、
を有することを特徴とする請求項4に記載の半導体基板の製造方法。
図1は、第1実施形態に係る半導体ウエハ(半導体基板)を示す概略平面図である。図2は、第1実施形態に係る半導体ウエハのアライメントマーク形成領域を示す概略平面図である。図3は、図2のA−A概略断面図であって、第1実施形態に係る半導体ウエハのアライメントマーク形成領域を示す概略断面図である。
なお、上記工程の後、例えば、図5(F)に示すように、アライメントマーク形成領域14及び半導体素子形成領域12となる領域において、ポスト電極28、アライメントマーク24及び防御用ポスト26の周囲を封止すると共に、ポスト電極28、アライメントマーク24及び防御用ポスト26の頂面が露出するように封止膜30を形成する。この封止膜30は、エポキシ系樹脂を用いて、スクリーン印刷法、スピーンコート法等により配設する。そして、半導体素子形成領域12となる領域において、ポスト電極28の頂面に外部端子32を配設する。その後、ダイシング等により、素子の個片化が行われる。
図6は、第2実施形態に係る半導体ウエハのアライメントマーク形成領域を示す概略平面図である。
12 半導体素子形成領域
14 アライメントマーク形成領域
16 接続パッド
18 パッシベーション膜
18A 開口部
20 保護膜
20A 開口部
22 ダミー配線層
22A 再配線層
24 アライメントマーク
26 防御用ポスト
28 ポスト電極
30 封止膜
32 外部端子
101 半導体ウエハ
102 半導体ウエハ
Claims (6)
- 半導体素子が形成された半導体基板本体と、
前記半導体基板本体上に配設されるアライメント用柱状部材と、
前記アライメント用柱状部材を防御するために、前記アライメント用柱状部材の周囲を囲んで前記半導体基板本体上に複数配設される防御用柱状部材であって、下層との接触面積が前記アライメント用柱状部材の下層との接触面積よりも大きい防御用柱状部材と、
前記アライメント用柱状部材及び前記防御用柱状部材を封止する封止膜と、
を備え、
前記アライメント用柱状部材及び前記防御用柱状部材は金属ポストであることを特徴とする半導体基板。 - 前記防御用柱状部材の径が、前記アライメント用柱状部材の径よりも大きいことを特徴とする請求項1に記載の半導体基板。
- 前記アライメント用柱状部材が、前記半導体基板の縁部側に設けられ、
且つ前記アライメント用柱状部材の周囲に設けられる複数の前記防御用柱状部材のうち、前記半導体基板の縁部側に設けられる防御用柱状部材が、前記半導体基板の内側に設けられる防御用柱状部材よりも配設間隔が密に配設されている、
ことを特徴とする請求項1に記載の半導体基板。 - 半導体素子が形成された半導体基板本体を準備する工程と、
前記半導体基板本体上に金属ポストからなるアライメント用柱状部材を形成する工程と、
下層との接触面積が前記アライメント用柱状部材の下層との接触面積よりも大きくなるように前記アライメント用柱状部材の周囲を囲んで前記半導体基板本体上に、前記アライメント用柱状部材を防御するための金属ポストからなる防御用柱状部材を複数形成する工程と、
前記アライメント用柱状部材及び前記防御用柱状部材を封止する封止膜を形成する工程と、
を備えることを特徴とする半導体基板の製造方法。 - 前記防御用柱状部材を形成する工程において、前記防御用柱状部材の径が前記アライメント用柱状部材の径よりも大きくなるように、前記防御用柱状部材を形成することを特徴とする請求項4に記載の半導体基板の製造方法。
- 前記アライメント用柱状部材を形成する工程において、前記アライメント用柱状部材を前記半導体基板の縁部側に形成し、
前記防御用柱状部材を形成する工程において、前記半導体基板の縁部側に形成する防御用柱状部材が前記半導体基板の内側に設けられる防御用柱状部材よりも配設間隔が密となるように、複数の前記防御用柱状部材を形成する工程と、
を有することを特徴とする請求項4に記載の半導体基板の製造方法。
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US9355979B2 (en) * | 2013-08-16 | 2016-05-31 | Taiwan Semiconductor Manufacturing Company, Ltd. | Alignment structures and methods of forming same |
US9589900B2 (en) | 2014-02-27 | 2017-03-07 | Taiwan Semiconductor Manufacturing Company, Ltd. | Metal pad for laser marking |
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