EP1364399A1 - Halbleiterchip und herstellungsverfahren für ein gehäuse - Google Patents
Halbleiterchip und herstellungsverfahren für ein gehäuseInfo
- Publication number
- EP1364399A1 EP1364399A1 EP02714075A EP02714075A EP1364399A1 EP 1364399 A1 EP1364399 A1 EP 1364399A1 EP 02714075 A EP02714075 A EP 02714075A EP 02714075 A EP02714075 A EP 02714075A EP 1364399 A1 EP1364399 A1 EP 1364399A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- compound
- semiconductor chip
- encapsulation
- upper side
- encapsulating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
- H10W74/10—Encapsulations, e.g. protective coatings characterised by their shape or disposition
- H10W74/131—Encapsulations, e.g. protective coatings characterised by their shape or disposition the semiconductor body being only partially enclosed
-
- 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
-
- 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
- H10W74/01—Manufacture or treatment
-
- 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
- H10W74/10—Encapsulations, e.g. protective coatings characterised by their shape or disposition
- H10W74/111—Encapsulations, e.g. protective coatings characterised by their shape or disposition the semiconductor body being completely enclosed
- H10W74/114—Encapsulations, e.g. protective coatings characterised by their shape or disposition the semiconductor body being completely enclosed by a substrate and the encapsulations
-
- 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
- H10W72/015—Manufacture or treatment of bond wires
- H10W72/01515—Forming coatings
-
- 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
-
- 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
- H10W72/551—Materials of bond wires
-
- 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
- H10W72/931—Shapes of bond pads
- H10W72/932—Plan-view shape, i.e. in top view
-
- 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
-
- 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
Definitions
- the present invention relates to a semiconductor chip which is intended to be partially provided with a covering of the connection contact surfaces and / or the bonding wires, which is referred to as the housing, after mounting on a chip carrier, certain active regions of the upper side remaining free, and a production method for a such housing.
- connection contact surfaces of semiconductor chips are usually connected to a chip carrier, on which the semiconductor chip is mounted, via the connection contact surfaces referred to as bond pads.
- Common connection methods are e.g. B. wire bonding, in which the connection contact surfaces of the semiconductor chip and the connection contact surfaces of the chip carrier are connected to one another in pairs by soldered wires, and flip-chip bonding, in which the upper-side contacts of the semiconductor chip are attached directly to assigned contact surfaces of the chip carrier become.
- the semiconductor chip is therefore usually enclosed in a so-called housing by injecting it into a casting compound or covering it with an encapsulating compound. All connections between the chip and the chip carrier and at least the entire active area of the chip are encased.
- this barrier prevents the encapsulation compound or encapsulation compound from flowing into those active chip areas that are to remain free. The barrier can then be removed. The additional attachment of such a barrier requires additional effort and thus additional costs; in special cases, a selective encapsulation of the semiconductor chip can thus only be implemented with difficulty or not at all.
- the object of the present invention is to provide an improved possibility for a selective encapsulation of a semiconductor chip.
- the selective encapsulation is achieved by a specially designed semiconductor chip with a selectively adapted surface or by a method for applying the encapsulation compound or encapsulation compound, in which the encapsulation compound or encapsulation compound is prevented from flowing onto the portions of the chip surface to be left free.
- a semiconductor chip according to the invention has a first portion of the upper side, which is intended to be covered by a potting compound or encapsulating compound of a housing, and a second portion of the upper side, which is intended to remain free of the encapsulating compound or encapsulating compound. The surface of the semiconductor chip in the first portion and in the second portion of the upper side are thus unrelated to one another.
- the proportions can be differentiated from one another by a flat selective adaptation of the respective surfaces to the different requirements or by a structural limitation by means of a barrier formed on the surface of the semiconductor chip.
- a selective adaptation of the chip surface can be brought about by the fact that different materials and / or structures on the chip surface in the portion to be covered by the encapsulation compound or encapsulation compound and the portion of the top side of the semiconductor chip to be left free provide different wettability or different adhesion properties of the encapsulation compound used or coating mass can be achieved. Flowing of the potting compound or encapsulating compound can thus be limited to part of the surface of the semiconductor chip.
- the other possibility mentioned of differentiating the portions of the chip surface by means of a structural limitation consists in delimiting the area of the upper side of the chip to be covered by the housing by means of a barrier which is structured directly on the chip surface and is in particular designed as a dam or trench.
- connection contact areas 3 bond pads
- connection contact areas 4 on the carrier 2 via bond wires 5.
- the connection contact surfaces and bonding wires are to be mechanically protected, which is done here with a suitable cover made of a sealing compound or encapsulating compound.
- This contact surface 6 is part of a fingerprint sensor, for which part of the circuit integrated in the semiconductor chip is provided.
- a covering of the bonding wires 5 by a potting compound or encapsulation compound 8 may therefore not cover this contact surface 6.
- the figure shows that the potting compound or encapsulation compound 8 covers the connection contact surfaces 3, 4 and the bonding wires 5 in a protected area 12 on the top side of the semiconductor chip 1 and thus protects, but not the entire semiconductor chip 1 from the encapsulation compound or encapsulation compound 8 is covered.
- the surface of the portion to be left free from the potting compound or encapsulating compound can be designed according to the invention in such a way that wetting, flowing or adhering to the encapsulating compound or encapsulating compound is prevented or at least made more difficult there.
- This is achieved in particular by a locally limited coating of the surface of the semiconductor chip with a suitable material or by a flat structuring, such as for example roughening, of the surface of the semiconductor chip in the relevant portion of the top side of the semiconductor chip.
- a structural limitation of the portions of the upper side of the semiconductor chip to be covered or left free by a barrier applied to the surface of the semiconductor chip is, for example, a dam or trench.
- the dam 7 shown in the figure, which surrounds the bearing surface ⁇ to be left free in the example shown, can be provided according to the invention to stop the pouring of the potting compound or encapsulating compound.
- the edge 10 of the sealing compound or encapsulant present on the upper side of the semiconductor chip then runs along this dam.
- a trench which is sufficient, particularly in the case of an already moderate lack of sealing of the encapsulation compound or encapsulation compound, to provide a precisely defined edge as a limitation of the encapsulation compound or encapsulation compound along a predetermined limit of the portion of the top side of the semiconductor chip that is to be left free to create. This can be the case, for example, if only a small amount of the casting compound or coating compound is applied or injected and / or if the surface of the semiconductor chip is selectively adapted according to the invention. ) M t » ⁇ »
Landscapes
- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10109327A DE10109327A1 (de) | 2001-02-27 | 2001-02-27 | Halbleiterchip und Herstellungsverfahren für ein Gehäuse |
| DE10109327 | 2001-02-27 | ||
| PCT/DE2002/000714 WO2002069386A1 (de) | 2001-02-27 | 2002-02-27 | Halbleiterchip und herstellungsverfahren für ein gehäuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1364399A1 true EP1364399A1 (de) | 2003-11-26 |
Family
ID=7675599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02714075A Withdrawn EP1364399A1 (de) | 2001-02-27 | 2002-02-27 | Halbleiterchip und herstellungsverfahren für ein gehäuse |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6876090B2 (de) |
| EP (1) | EP1364399A1 (de) |
| JP (1) | JP2004521497A (de) |
| DE (1) | DE10109327A1 (de) |
| IL (1) | IL157598A0 (de) |
| WO (1) | WO2002069386A1 (de) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2839570B1 (fr) | 2002-05-07 | 2004-09-17 | Atmel Grenoble Sa | Procede de fabrication de capteur d'empreinte digitale et capteur correspondant |
| DE10300171A1 (de) * | 2003-01-08 | 2004-07-22 | Hella Kg Hueck & Co. | Elektronische Baugruppe mit metallischem Gehäuseteil |
| US7474772B2 (en) | 2003-06-25 | 2009-01-06 | Atrua Technologies, Inc. | System and method for a miniature user input device |
| US7587072B2 (en) | 2003-08-22 | 2009-09-08 | Authentec, Inc. | System for and method of generating rotational inputs |
| US7697729B2 (en) | 2004-01-29 | 2010-04-13 | Authentec, Inc. | System for and method of finger initiated actions |
| WO2006025017A1 (en) * | 2004-09-02 | 2006-03-09 | Philips Intellectual Property & Standards Gmbh | Identification document with a contactless rfid chip |
| US7831070B1 (en) | 2005-02-18 | 2010-11-09 | Authentec, Inc. | Dynamic finger detection mechanism for a fingerprint sensor |
| US8231056B2 (en) | 2005-04-08 | 2012-07-31 | Authentec, Inc. | System for and method of protecting an integrated circuit from over currents |
| US7691675B2 (en) * | 2005-10-24 | 2010-04-06 | Hewlett-Packard Development Company, L.P. | Encapsulating electrical connections |
| JP4827851B2 (ja) * | 2005-11-22 | 2011-11-30 | ソニー株式会社 | 半導体装置および半導体装置の製造方法 |
| US7632698B2 (en) | 2006-05-16 | 2009-12-15 | Freescale Semiconductor, Inc. | Integrated circuit encapsulation and method therefor |
| US8421890B2 (en) | 2010-01-15 | 2013-04-16 | Picofield Technologies, Inc. | Electronic imager using an impedance sensor grid array and method of making |
| US8866347B2 (en) | 2010-01-15 | 2014-10-21 | Idex Asa | Biometric image sensing |
| EP2836960B1 (de) | 2012-04-10 | 2018-09-26 | Idex Asa | Biometrische erfassung |
| EP3036688A4 (de) * | 2013-08-23 | 2017-05-17 | Fingerprint Cards AB | Anschlusspads für eine fingerabdruckerfassungsvorrichtung |
| EP3459109B1 (de) | 2016-05-19 | 2021-11-17 | Sencio B.V. | Gehäuse für integrierte schaltung und verfahren zur herstellung desselben |
| CN108962868B (zh) | 2017-05-25 | 2020-07-03 | 矽品精密工业股份有限公司 | 封装结构及其制法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1074869A (ja) * | 1996-07-31 | 1998-03-17 | Motorola Inc | 電子部品アセンブリおよび組立て方法 |
| EP1041628A2 (de) * | 1999-03-29 | 2000-10-04 | Interuniversitair Microelektronica Centrum Vzw | BGA-Bildsensor-Verpackung und deren Herstellungsmethode |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4143456A (en) * | 1976-06-28 | 1979-03-13 | Citizen Watch Commpany Ltd. | Semiconductor device insulation method |
| JPS6132535A (ja) * | 1984-07-25 | 1986-02-15 | Sanyo Electric Co Ltd | センサの製造方法 |
| GB8727902D0 (en) * | 1987-11-28 | 1987-12-31 | Emi Plc Thorn | Method of forming a solid article |
| US5219712A (en) * | 1987-11-28 | 1993-06-15 | Thorn Emi Plc | Method of forming a solid article |
| GB8911607D0 (en) * | 1989-05-19 | 1989-07-05 | Emi Plc Thorn | A method of encapsulation for electronic devices and devices so encapsulated |
| US5530278A (en) * | 1995-04-24 | 1996-06-25 | Xerox Corporation | Semiconductor chip having a dam to prevent contamination of photosensitive structures thereon |
| JP4024335B2 (ja) * | 1996-01-26 | 2007-12-19 | ハリス コーポレイション | 集積回路のダイを露出させる開口部を有する集積回路装置とその製造方法 |
| US5963679A (en) * | 1996-01-26 | 1999-10-05 | Harris Corporation | Electric field fingerprint sensor apparatus and related methods |
| US6388199B1 (en) * | 2000-07-31 | 2002-05-14 | Micron Technology, Inc. | Selectively adjusting surface tension of soldermask material |
-
2001
- 2001-02-27 DE DE10109327A patent/DE10109327A1/de not_active Ceased
-
2002
- 2002-02-27 IL IL15759802A patent/IL157598A0/xx unknown
- 2002-02-27 JP JP2002568412A patent/JP2004521497A/ja not_active Withdrawn
- 2002-02-27 EP EP02714075A patent/EP1364399A1/de not_active Withdrawn
- 2002-02-27 WO PCT/DE2002/000714 patent/WO2002069386A1/de not_active Ceased
-
2003
- 2003-08-27 US US10/649,410 patent/US6876090B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1074869A (ja) * | 1996-07-31 | 1998-03-17 | Motorola Inc | 電子部品アセンブリおよび組立て方法 |
| EP1041628A2 (de) * | 1999-03-29 | 2000-10-04 | Interuniversitair Microelektronica Centrum Vzw | BGA-Bildsensor-Verpackung und deren Herstellungsmethode |
Non-Patent Citations (1)
| Title |
|---|
| See also references of WO02069386A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10109327A1 (de) | 2002-09-12 |
| WO2002069386A1 (de) | 2002-09-06 |
| US6876090B2 (en) | 2005-04-05 |
| JP2004521497A (ja) | 2004-07-15 |
| US20040159961A1 (en) | 2004-08-19 |
| IL157598A0 (en) | 2004-03-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20030806 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
| 17Q | First examination report despatched |
Effective date: 20081201 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: INFINEON TECHNOLOGIES AG |
|
| RIC1 | Information provided on ipc code assigned before grant |
Ipc: H01L 21/56 20060101AFI20170901BHEP Ipc: G06K 9/00 20060101ALI20170901BHEP |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| INTG | Intention to grant announced |
Effective date: 20171031 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20180313 |
|
| RIC1 | Information provided on ipc code assigned before grant |
Ipc: H01L 21/56 20060101AFI20170901BHEP Ipc: G06K 9/00 20060101ALI20170901BHEP |