JP6654566B2 - 指紋検知システムの接続パッド - Google Patents
指紋検知システムの接続パッド Download PDFInfo
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- JP6654566B2 JP6654566B2 JP2016536063A JP2016536063A JP6654566B2 JP 6654566 B2 JP6654566 B2 JP 6654566B2 JP 2016536063 A JP2016536063 A JP 2016536063A JP 2016536063 A JP2016536063 A JP 2016536063A JP 6654566 B2 JP6654566 B2 JP 6654566B2
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing
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- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/90—Bond pads, in general
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/01—Manufacture or treatment
- H10W72/019—Manufacture or treatment of bond pads
- H10W72/01921—Manufacture or treatment of bond pads using local deposition
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- H—ELECTRICITY
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- H10W72/00—Interconnections or connectors in packages
- H10W72/01—Manufacture or treatment
- H10W72/019—Manufacture or treatment of bond pads
- H10W72/01931—Manufacture or treatment of bond pads using blanket deposition
- H10W72/01933—Manufacture or treatment of bond pads using blanket deposition in liquid form, e.g. spin coating, spray coating or immersion coating
- H10W72/01935—Manufacture or treatment of bond pads using blanket deposition in liquid form, e.g. spin coating, spray coating or immersion coating by plating, e.g. electroless plating or electroplating
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- H—ELECTRICITY
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- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/01—Manufacture or treatment
- H10W72/019—Manufacture or treatment of bond pads
- H10W72/01931—Manufacture or treatment of bond pads using blanket deposition
- H10W72/01938—Manufacture or treatment of bond pads using blanket deposition in gaseous form, e.g. by CVD or PVD
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- H—ELECTRICITY
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- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/01—Manufacture or treatment
- H10W72/019—Manufacture or treatment of bond pads
- H10W72/01961—Chemical or physical modification, e.g. by sintering or anodisation
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/071—Connecting or disconnecting
- H10W72/075—Connecting or disconnecting of bond wires
- H10W72/07521—Aligning
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/50—Bond wires
- H10W72/531—Shapes of wire connectors
- H10W72/536—Shapes of wire connectors the connected ends being ball-shaped
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/50—Bond wires
- H10W72/531—Shapes of wire connectors
- H10W72/5363—Shapes of wire connectors the connected ends being wedge-shaped
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/50—Bond wires
- H10W72/541—Dispositions of bond wires
- H10W72/5445—Dispositions of bond wires being orthogonal to a side surface of the chip, e.g. parallel arrangements
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/50—Bond wires
- H10W72/59—Bond pads specially adapted therefor
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/90—Bond pads, in general
- H10W72/921—Structures or relative sizes of bond pads
- H10W72/923—Bond pads having multiple stacked layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/90—Bond pads, in general
- H10W72/941—Dispositions of bond pads
- H10W72/9415—Dispositions of bond pads relative to the surface, e.g. recessed, protruding
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/90—Bond pads, in general
- H10W72/941—Dispositions of bond pads
- H10W72/944—Dispositions of multiple bond pads
- H10W72/9445—Top-view layouts, e.g. mirror arrays
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/90—Bond pads, in general
- H10W72/951—Materials of bond pads
- H10W72/952—Materials of bond pads comprising metals or metalloids, e.g. PbSn, Ag or Cu
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W74/00—Encapsulations, e.g. protective coatings
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W90/00—Package configurations
- H10W90/701—Package configurations characterised by the relative positions of pads or connectors relative to package parts
- H10W90/751—Package configurations characterised by the relative positions of pads or connectors relative to package parts of bond wires
- H10W90/752—Package configurations characterised by the relative positions of pads or connectors relative to package parts of bond wires between stacked chips
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- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Image Input (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Manufacturing & Machinery (AREA)
Description
金属除去の後、レジストマスク138は除去され、残った導電材料が図4eに見られる。図4dおよび4eに図示されるように、堆積された金属層136は、接続パッド108と指紋検知装置の検知素子104の両方を、同じ加工段階で形成するのに用いることができる。
Uout=(Cfinger/Cref)Uin
のように計算しうる。
Claims (11)
- 指紋検知装置(102)であって、
複数の検知素子(104)を備える検知回路であって、各検知素子が、検知面に配置されて当該指紋検知装置の表面に対面している検知構造を備えるとともに、前記検知素子のそれぞれが、前記検知構造と当該指紋検知装置の前記表面に置かれる指との間の電磁結合を示す信号を提供するよう構成される、検知回路と、
前記検知回路と前記指紋検知装置(102)の外部の読み出し回路との間に電気的接続を提供するために前記検知回路に電気的に接続される複数の接続パッド(108)と、
を具備した指紋検知装置(102)であって、
前記複数の接続パッドのそれぞれは、各接続パッドが前記指紋検知装置の縁部に配置されて、前記指紋検知装置の前記縁部に達するフロア(110)を有した凹部によって画成されるよう前記検知面に対して別個に凹み、前記フロア(110)はフロア面内にあり、各接続パッドは、前記指紋検知装置の前記フロア面に対して盛り上がっている部分を介して、近接する接続パッドから隔てられており、
前記凹部は、前記フロア(110)から当該指紋検知装置の前記検知面に達する、少なくとも一つの側壁を有し、導電層が前記フロアおよび前記側壁を完全に覆い、
前記導電層は、前記接続パッドのそれぞれを囲む本質的に平らな表面の一部にさらに配置される、指紋検知装置(102)。 - 前記検知面は、当該指紋検知装置の最上金属層に配置される、請求項1に記載の指紋検知装置。
- 前記側壁は、前記フロアから前記検知面へと90度より小さい角度で傾斜している、請求項1または2に記載の指紋検知装置。
- 傾斜した前記側壁は、45度を超え、好ましくは80度を超える傾斜を有する、請求項3に記載の指紋検知装置。
- 前記凹部の深さは、20μmより大きく、より好ましくは50μmより大きく、最も好ましくは100μmより大きい、請求項1から4のいずれか一項に記載の指紋検知装置。
- 前記指紋検知装置は読み出し回路を備える読み出し基板上に配置され、前記複数の接続パッドの少なくとも一つが前記読み出し回路にワイヤボンドされている、請求項1から5のいずれか一項に記載の指紋検知装置。
- 前記検知素子のそれぞれは、前記検知構造と当該指紋検知装置の前記表面上に置かれる指との間の容量結合を示す信号を提供するよう構成されている、請求項1から6のいずれか一項に記載の指紋検知装置。
- 前記指と前記検知構造との間の電位差の変化に起因する、前記検知構造が帯びる電荷の変化を示す検知信号を提供するために、前記検知構造のそれぞれに一つずつ接続される複数のチャージアンプ、をさらに備える、請求項1から7のいずれか一項に記載の指紋検知装置。
- 前記チャージアンプは、
前記検知構造に接続されるマイナス入力と、
検知素子基準電位に接続されるプラス入力と、
前記検知信号を提供する出力と、
前記マイナス入力と前記出力との間に接続される帰還コンデンサと、
前記プラス入力および前記マイナス入力と前記出力との間の少なくとも一つの増幅段と、を備え、
前記チャージアンプは、前記マイナス入力での電位が前記プラス入力での電位に実質的に追従するように構成されている、請求項8に記載の指紋検知装置。 - 前記複数の検知素子および前記接続パッドを覆う保護誘電トッププレートと、
前記プレートと前記検知素子との間に配置され、前記プレートと前記接続パッドとの間に配置される、前記プレートを前記検知素子に付着させるよう構成された接着剤の層と、をさらに備える、請求項1から9のいずれか一項に記載の指紋検知装置。 - 前記接続パッドを前記読み出し回路に接続するボンドワイヤをさらに備え、前記ボンドワイヤは、前記検知面の上方を前記接着剤の中へと伸びている、請求項10に記載の指紋検知装置。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP13181514.4 | 2013-08-23 | ||
| EP13181514 | 2013-08-23 | ||
| PCT/SE2014/050962 WO2015026288A1 (en) | 2013-08-23 | 2014-08-22 | Connection pads for a fingerprint sensing device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2016534454A JP2016534454A (ja) | 2016-11-04 |
| JP2016534454A5 JP2016534454A5 (ja) | 2017-09-28 |
| JP6654566B2 true JP6654566B2 (ja) | 2020-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2016536063A Expired - Fee Related JP6654566B2 (ja) | 2013-08-23 | 2014-08-22 | 指紋検知システムの接続パッド |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9582704B2 (ja) |
| EP (1) | EP3036688A4 (ja) |
| JP (1) | JP6654566B2 (ja) |
| KR (1) | KR101773029B1 (ja) |
| CN (1) | CN105453109B (ja) |
| WO (1) | WO2015026288A1 (ja) |
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| US9576177B2 (en) * | 2014-12-11 | 2017-02-21 | Fingerprint Cards Ab | Fingerprint sensing device |
| TWI594341B (zh) * | 2015-01-19 | 2017-08-01 | 神盾股份有限公司 | 指紋辨識裝置封裝及其製造方法 |
| US9812413B2 (en) * | 2015-01-21 | 2017-11-07 | Xintec Inc. | Chip module and method for forming the same |
-
2014
- 2014-08-22 EP EP14838089.2A patent/EP3036688A4/en not_active Withdrawn
- 2014-08-22 WO PCT/SE2014/050962 patent/WO2015026288A1/en not_active Ceased
- 2014-08-22 US US14/911,573 patent/US9582704B2/en active Active
- 2014-08-22 JP JP2016536063A patent/JP6654566B2/ja not_active Expired - Fee Related
- 2014-08-22 CN CN201480045669.0A patent/CN105453109B/zh active Active
- 2014-08-22 KR KR1020167001836A patent/KR101773029B1/ko active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105453109A (zh) | 2016-03-30 |
| US9582704B2 (en) | 2017-02-28 |
| JP2016534454A (ja) | 2016-11-04 |
| WO2015026288A1 (en) | 2015-02-26 |
| EP3036688A4 (en) | 2017-05-17 |
| KR20160045678A (ko) | 2016-04-27 |
| CN105453109B (zh) | 2018-05-29 |
| US20160210495A1 (en) | 2016-07-21 |
| EP3036688A1 (en) | 2016-06-29 |
| KR101773029B1 (ko) | 2017-08-30 |
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