CN107888162A - A kind of common-mode filter of integrated ESD protections - Google Patents
A kind of common-mode filter of integrated ESD protections Download PDFInfo
- Publication number
- CN107888162A CN107888162A CN201711080852.6A CN201711080852A CN107888162A CN 107888162 A CN107888162 A CN 107888162A CN 201711080852 A CN201711080852 A CN 201711080852A CN 107888162 A CN107888162 A CN 107888162A
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- CN
- China
- Prior art keywords
- layer
- suppressor
- common
- esd
- coil
- 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.)
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Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0067—Devices for protecting against damage from electrostatic discharge
Abstract
The present invention relates to a kind of common-mode filter of integrated ESD protections, it is characterised in that：Include body in wave filter, be arranged on the terminal stud of outer body surrounding and be arranged on the circuit layer of body interior, being arranged on the terminal stud of outer body surrounding includes multiple Wiring ports, the circuit layer of body interior includes at least two groups of common mode ESD wave filters, every group of common mode ESD wave filter includes two paths, the circuit layer for being arranged on intrinsic silicon is in superimposed layer structure setting, it is to replace to be formed by stacking with metal inner electrode layer by polymeric layer to be superimposed Rotating fields, and adjacent inner electrode layer forms an individual layer static suppressor with folded polymeric layer.Effectively suppression common mode ESD damage can be disturbed and reduced, have the advantages that high reliability, cost are low and be suitable for producing on a large scale, be also adapted to new electronic component miniaturization trend in addition.
Description
Technical field
The present invention discloses a kind of common-mode filter of integrated ESD protections, available for mobile phone, laptop computer, digital phase
In machine and other various communication apparatus.
Background technology
With the rapid development of modern science and technology, portable electronic applications are more and more extensive, and they are in operation
Caused high density, the electromagnetic signal of wide spectrum are full of whole space, form the electromagnetic environment of complexity.To reduce the dry of noise
Disturb, difference mode signal（differential signal）It is widely used on various high speed data transmission interfaces, such as USB 2.0/
3.0th, IEEE 1394, HDMI and Display port etc..It is constantly soaring along with the various interface transmission datas of electronic product,
Common mode disturbances are more serious, at the same time released along with the continuous miniaturization of the semiconductor machinings such as IC, electronic equipment reply electrostatic
Put（ESD）Function, it is relative to become more and more fragile.Therefore, how suppression common mode noise turns into the ESD protection for carrying out device
One of very urgent important research topic.
Conventional countermeasure is protected by common mode inductance suppression common mode noise and ESD device respectively.Nowadays with LTCC
（LTCC）The development of technology, by its high-reliability, high wiring density, 3 D stereo wiring technique and high radiating
Property the advantages of, be used to design common mode ESD wave filters (Common Mode ESD Filter).Lamination common mode ESD wave filters are
A kind of novel compositions device of expanded application in recent years.It can effectively suppress noise, protection element from electrostatic damage, carry
The antijamming capability of high electronic equipment and the reliability of system.
The content of the invention
The purpose of the present invention is to overcome the shortcomings of prior art, designs a kind of common-mode filter of integrated ESD protections.
A kind of common-mode filter of integrated ESD protections, it is characterised in that：Include body in wave filter, be arranged on this in vitro
The terminal stud of side surrounding and the circuit layer for being arranged on body interior, the terminal stud of outer body surrounding is arranged on including multiple
Wiring port, the circuit layer of body interior include at least two groups of common mode ESD wave filters, and every group of common mode ESD wave filter includes two
Path, first coil and the first suppressor E1, the second suppressor E8 that are connected in series are first passage, the first suppressor E1 and
Two suppressor E8 and coil L1 is connected in parallel, and the second coil L2 and the 3rd suppressor E2, the 4th suppressor E7 that are connected in series are
Second channel, the 3rd suppressor E2 and the 4th suppressor E7 and the second coil L2 are connected in parallel；It is arranged on the circuit of intrinsic silicon
Layer is in superimposed layer structure setting, and superposition Rotating fields are to replace to be formed by stacking with metal inner electrode layer by polymeric layer, adjacent
Inner electrode layer forms an individual layer static suppressor with folded polymeric layer.
Preferably, described polymeric layer is ZnO ceramic layers and/or composition is titanium, tungsten, the glass phase of nickel oxide.
Preferably, the width of interior electrode is no more than the width of external electrode, and the thickness of interior electrode is 2 μm -15 μm, the polymerization
The thickness of nitride layer is 2 μm -40 μm.
Preferably, the body is cuboid.
Using having the beneficial effect that for the application, realized by the common burning technology of excellent casting molding processes and multiple material
Its internal special structure, so as to reach the various characteristic design requirements of common mode ESD wave filters, and can lead in manufacturing process
Cross and constantly change structure, material and technique to obtain the common-mode filter of the integrated ESD of different performance requirement protections.The present invention
Effectively suppression common mode ESD damage can be disturbed and reduced, have high reliability, cost low and be suitable for large-scale production etc.
Advantage, new electronic component miniaturization trend has been also adapted in addition.
Brief description of the drawings
Fig. 1 is the integral module figure of the present invention.
Fig. 2 is the hierarchical structure figure of the present invention.
Fig. 3 is common mode ESD filter circuit schematic diagrams.
Embodiment
A kind of common-mode filter of integrated ESD protections, it is characterised in that：Include body 1 in wave filter, be arranged on this in vitro
The terminal stud of side surrounding and the circuit layer for being arranged on body interior, the terminal stud of outer body surrounding is arranged on including multiple
Wiring port P1-P10, the circuit layer of body interior include at least two groups of common mode ESD wave filters, every group of common mode ESD wave filter bag
Include two paths, first coil and the first suppressor E1, the second suppressor E8 that are connected in series are first passage, the first suppressor
E1 and the second suppressor E8 and coil L1 are connected in parallel, the second coil L2 and the 3rd suppressor E2 being connected in series, the 4th suppression
Device E7 is second channel, and the 3rd suppressor E2 and the 4th suppressor E7 and the second coil L2 are connected in parallel；It is arranged on intrinsic silicon
Circuit layer be in superimposed layer structure setting, superposition Rotating fields be replaced by polymeric layer 2 with metal inner electrode layer 3 be superimposed and
Into adjacent inner electrode layer forms an individual layer static suppressor with folded polymeric layer.
Preferably, described polymeric layer is ZnO ceramic layers and/or composition is titanium, tungsten, the glass phase of nickel oxide.
Preferably, the width of interior electrode is no more than the width of external electrode, and the thickness of interior electrode is 2 μm -15 μm, the polymerization
The thickness of nitride layer is 2 μm -40 μm.
Preferably, the body is cuboid.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God and modification, replacement and the improvement made within principle, are uniformly included within the protection domain that the present invention is covered.
Claims (4)
- A kind of 1. common-mode filter of integrated ESD protections, it is characterised in that：Include body in wave filter, be arranged on outer body The terminal stud of surrounding and the circuit layer for being arranged on body interior, being arranged on the terminal stud of outer body surrounding includes multiple connect Line end mouth, the circuit layer of body interior include at least two groups of common mode ESD wave filters, and every group of common mode ESD wave filter includes two and led to Road, first coil and the first suppressor E1, the second suppressor E8 that are connected in series are first passage, the first suppressor E1 and second Suppressor E8 is connected in parallel with coil L1, and the second coil L2 and the 3rd suppressor E2, the 4th suppressor E7 that are connected in series are the Two passages, the 3rd suppressor E2 and the 4th suppressor E7 and the second coil L2 are connected in parallel；It is arranged on the circuit layer of intrinsic silicon In superimposed layer structure setting, superposition Rotating fields are to replace to be formed by stacking with metal inner electrode layer by polymeric layer, and adjacent is interior Electrode layer forms an individual layer static suppressor with folded polymeric layer.
- A kind of 2. common-mode filter of integrated ESD protections according to claim 1, it is characterised in that：Described polymer Layer is ZnO ceramic layers and/or composition is titanium, tungsten, the glass phase of nickel oxide.
- A kind of 3. common-mode filter of integrated ESD protections according to claim 1, it is characterised in that：The width of interior electrode No more than the width of external electrode, the thickness of interior electrode is 2 μm -15 μm, and the thickness of the polymeric layer is 2 μm -40 μm.
- A kind of 4. common-mode filter of integrated ESD protections according to claim 1, it is characterised in that：The body is length Cube shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711080852.6A CN107888162A (en) | 2017-11-06 | 2017-11-06 | A kind of common-mode filter of integrated ESD protections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711080852.6A CN107888162A (en) | 2017-11-06 | 2017-11-06 | A kind of common-mode filter of integrated ESD protections |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107888162A true CN107888162A (en) | 2018-04-06 |
Family
ID=61779046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711080852.6A Pending CN107888162A (en) | 2017-11-06 | 2017-11-06 | A kind of common-mode filter of integrated ESD protections |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107888162A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110474617A (en) * | 2019-08-14 | 2019-11-19 | 天华通信科技有限公司 | The filter of the filtering characteristic of common-mode filter is improved using ESD protection device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6617750B2 (en) * | 1999-09-21 | 2003-09-09 | Rockwell Automation Technologies, Inc. | Microelectricalmechanical system (MEMS) electrical isolator with reduced sensitivity to inertial noise |
| CN100538926C (en) * | 2003-11-28 | 2009-09-09 | Tdk株式会社 | Film common-mode filter and film common-mode filter array |
| CN102790599A (en) * | 2012-07-30 | 2012-11-21 | 华为技术有限公司 | Filter |
| CN103138712A (en) * | 2013-01-30 | 2013-06-05 | 深圳市麦捷微电子科技股份有限公司 | Novel laminated two-channel common mode electro-static discharge (ESD) filter |
-
2017
- 2017-11-06 CN CN201711080852.6A patent/CN107888162A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6617750B2 (en) * | 1999-09-21 | 2003-09-09 | Rockwell Automation Technologies, Inc. | Microelectricalmechanical system (MEMS) electrical isolator with reduced sensitivity to inertial noise |
| CN100538926C (en) * | 2003-11-28 | 2009-09-09 | Tdk株式会社 | Film common-mode filter and film common-mode filter array |
| CN102790599A (en) * | 2012-07-30 | 2012-11-21 | 华为技术有限公司 | Filter |
| CN103138712A (en) * | 2013-01-30 | 2013-06-05 | 深圳市麦捷微电子科技股份有限公司 | Novel laminated two-channel common mode electro-static discharge (ESD) filter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110474617A (en) * | 2019-08-14 | 2019-11-19 | 天华通信科技有限公司 | The filter of the filtering characteristic of common-mode filter is improved using ESD protection device |
| CN110474617B (en) * | 2019-08-14 | 2024-01-05 | 天华通信科技有限公司 | Filter for improving filter characteristic of common mode filter by ESD protection element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180406 |