CN201160195Y - Adjustable electric discharge protection assembly - Google Patents
Adjustable electric discharge protection assembly Download PDFInfo
- Publication number
- CN201160195Y CN201160195Y CNU2008200006120U CN200820000612U CN201160195Y CN 201160195 Y CN201160195 Y CN 201160195Y CN U2008200006120 U CNU2008200006120 U CN U2008200006120U CN 200820000612 U CN200820000612 U CN 200820000612U CN 201160195 Y CN201160195 Y CN 201160195Y
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- Prior art keywords
- groove
- protection component
- electrode
- discharging protection
- component according
- Prior art date
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- 239000000463 material Substances 0.000 claims abstract description 19
- 239000000758 substrate Substances 0.000 claims abstract description 15
- 239000000919 ceramic Substances 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims description 17
- 239000010410 layer Substances 0.000 claims description 10
- 239000011241 protective layer Substances 0.000 claims description 10
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 8
- 239000003989 dielectric material Substances 0.000 claims description 8
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 8
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- 229910052709 silver Inorganic materials 0.000 claims description 6
- 239000004332 silver Substances 0.000 claims description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 229910052763 palladium Inorganic materials 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- 230000009993 protective function Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000002745 absorbent Effects 0.000 description 5
- 239000002250 absorbent Substances 0.000 description 5
- 239000006096 absorbing agent Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model discloses an adjustable discharge protection component. A groove with preset depth and width is formed on the surface of a ceramic substrate, electrodes mutually separated are formed on the two sides of the groove, a separating layer which can cover the groove and form an independent air chamber with the groove is arranged above the groove, medium material is filled between the two electrodes inside the groove, and a protecting layer is also arranged outside; therefore, the discharge protective function of the component can be controlled by controlling the width and the depth of the groove.
Description
Technical field
The utility model relates to a kind of discharging protection component; particularly relating to a kind of directly formation at substrate surface can be for the groove that is packed into dielectric material; the groove both sides are formed with the electrode that is separated from each other; with this width and degree of depth via the adjustment groove; the thickness of control medium material and volume, and then the protection assembly of control assembly discharge.
Background technology
At present electronic product there's no one who doesn't or isn't develops towards light, thin, short, little characteristic, and for making the product miniaturization that more becomes, each dealer actively researches and develops the relevant passive component of product invariably.
Existing relevant basic framework to the electrostatic discharge (ESD) protection design; system is shown in the 1st figure; the 1st figure mainly is presented on the tellite 10; the circuit 1a that electrostatic discharge (ESD) protection mechanism is set in desire goes up making one pointed sparking electrode 12a; pass through the formation in a gap 13 simultaneously, again with another pointed sparking electrode 12b ground connection (Ground).Yet; because the making of the width dimensions in gap 13; be subject to the restriction of static discharge processing procedure ability; for doing the width dimensions of this gap very little; suitable difficulty is arranged; when gap 13 can't be accomplished when very little, will be higher with respect to the breakdown voltage of gap width size, promptly can be limited the protective effect of circuit.
In order to solve the lower protection demand of voltage, use surge absorber (surgeabsorber) assembly of pure semiconductor or ceramic semiconductors to be developed, more representative, be as described below:
Japan speciallys permit out hope open 2004-31016 number: a kind of surge absorber, be shown in Fig. 2 A, comprise a cylindrical ceramic assembly 2, its surface coats with conductive film 3, and there is pair of electrodes 5,6 at two ends, on the cylindrical ceramic assembly 2 of the conductive film that is being covered and form a narrow dark again recessed crack 7, and the above-mentioned structure outside, and with canals of stilling 8 sealings, the space in the canals of stilling 8 then is argon inert gases such as (Ar).
No. 2004/077632, international monopoly WO (PCT/JP2004/002445): the surge absorber that it disclosed, be shown in Fig. 2 B, comprise a cartridge type ceramic insulation pipe 15, blanketing gas in it, and sealing surging absorbent assembly 11, the both ends of the surface of insulating properties pipe 15 have termination electrode 16, cylindric insulating properties material 13 integral body of surging absorbent assembly 11 are with conductive film 12 linings, its central part also has a discharging gap M, between termination electrode 16 and surging absorbent assembly 11, then be conductive cushion material 17.
United States Patent (USP) the 6th, 731,490 B2 cases (date of patent is on May 4th, 2004): the surge absorber that it disclosed is shown in Fig. 2 C, comprises termination electrode 212, glass tube 213, surging absorbent assembly 211.And there is one deck conducting film 210 on the surface of surging absorbent assembly 211, and a discharging gap M is arranged, and glass tube 213 is to make rectangular tube, wherein fills inert gas G.
But above-mentioned surge absorber still has the shortcoming of microminiaturization difficulty, processing procedure complexity.Relevant existing chip form array protection assembly; not only numerous and diverse owing to using the thick film screen printing number of plies too much to reach processing procedure; have and the problem of the further miniaturization of assembly (for example 0201 chip size) can't be existed; and; the desire utilization reduces assembly Vt (trigger voltage) and Vc (cut-ff voltage) by shortening electrode spacing, and the certain bottleneck and the limit are also arranged in the making.
The utility model content
The purpose of this utility model is, by a kind of adjustable discharging protection component is provided, directly form the groove of the certain width and the degree of depth at substrate surface, be formed with the electrode that is separated from each other in inner two sides of groove, the groove upper end forms one can cover groove the separator that makes groove form independent air chamber, groove inside is the filled media material between two electrodes, and the outside is established protective layer again; By this,, adjust the volume and the thickness of dielectric material, get the discharge prevention effect of control assembly via the thickness and the degree of depth of control groove.
The utility model is to adopt following technological means to realize:
A kind of adjustable discharging protection component; be formed with the groove of a desired depth and width at a substrate surface; two sides of described groove are formed with electrode and the termination electrode that is separated from each other; the groove upper end forms a separator that groove can be covered; groove inside is the filled media material between two electrodes, and the separator upper end is established protective layer again.
Aforesaid substrate is a ceramic substrate.
The aforesaid electrode that is formed at groove two sides is copper (Cu), silver (Ag), platinum (Pt) or palladium (Pd) electrode glue.
Aforesaid medium material material includes zinc oxide.
The aforesaid separator that covers on the groove upper end for anti-steam layer, is mainly glass cement.
Aforesaid protective layer is an epoxy resin protective layer polymer.
The outside of aforesaid termination electrode is provided with the termination electrode based on silver again.
The utility model compared with prior art has following remarkable advantages and beneficial effect:
Adjustable discharging protection component of the present utility model; owing to directly utilize the space of substrate; can avoid making the too much problem of the number of plies; also because dielectric material system inserts base material inside fully; can reduce steam to enter dielectric layer material approach and cause component failures (dielectric layer and extraneous contact area reduce), relatively can lifting subassembly in the reliability of reliability test (hot and humid).Because its printing number of plies reduces, and reduces numerous and diverse step, so can reduce production costs, promotes production efficiency, the stability of product is better; Owing to promoted the space utilization on the substrate thickness, so can reduce the restriction of process parameter; Owing to can effectively control the active region dielectric layer material thickness between two termination electrodes, be the operation error so can reduce the people.
Description of drawings
Fig. 1 is the schematic diagram of existing gap discharge skill;
Fig. 2 A to Fig. 2 C is a case key diagram before the gap discharge patent;
Fig. 3 is a profile of the present utility model;
Fig. 4 A to Fig. 4 F is a manufacturing process stage diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing specific embodiment of the utility model is illustrated:
Adjustable discharging protection component of the present utility model, as shown in Figure 3, this adjustable discharging protection component, form the groove 301 of a desired depth and width on a ceramic substrate 300 surfaces, be formed with electrode 302,303 and the termination electrode 304,305 that is separated from each other in groove 301 2 sides, groove 301 upper ends form one can cover groove the separator 306 that makes groove form independent air chamber, and groove 301 inside are filled media material 307 between two electrodes 302,303, and the outside is established protective layer 308 again; By this, via the thickness and the degree of depth of control groove 301, adjust the volume and the thickness of dielectric material 307, promptly get trigger voltage (tigger voltage in order to control assembly, VT), cut-ff voltage (Clamping Voltage, Vc) and capacitance (Capacitance, Cp).
During manufacturing, on substrate 300, form the groove 301 (shown in Fig. 4 A) of the proper width and the degree of depth earlier with the cutting processing procedure, utilize again spatter cross, wire mark ... form electrode 302,303 and the termination electrode 304,305 (shown in Fig. 4 B) that is separated from each other etc. mode in two sides of groove 301, electrode 302,303 is formed at the both sides of groove 300 inside, and the local top that is formed at substrate, it is able to copper (Cu), silver (Ag), platinum (Pt), palladium (Pd) ... make in electrode glue, termination electrode 304,305 is a main material with silver (Ag); Insert dielectric material 307 (shown in 4C figure) in groove 301 inside then, dielectric material 307 is mainly the material prescription person who includes zinc oxide; Be located at the separator 306 (shown in Fig. 4 D) of groove 301 tops, be anti-steam layer, mainly with so that groove 301 forms independently air chamber space, and prevent that steam from entering in the groove 301, it must use glass cement; In separator 306 tops lining protective layer 308 (shown in Fig. 4 E), must use epoxy resin (epoxy) again ... Deng protective layer polymer (polymer) material, last again in the outside of termination electrode electronickelling tin layer 309,310 (shown in Fig. 4 F).
By above-mentioned structure, owing to be the space that directly utilizes substrate, can avoid making the too much problem of the number of plies, also because dielectric material system inserts base material inside fully, can reduce steam to enter dielectric layer material approach and cause component failures (dielectric layer and extraneous contact area reduce), relatively can lifting subassembly in the reliability of reliability test (hot and humid).The printing number of plies reduces, and reduces numerous and diverse step, can reduce production costs, and promotes production efficiency, because the active region dielectric layer material thickness between two termination electrodes must be effectively controlled, can reduce the people and be the operation error.
Comprehensive the above; adjustable discharging protection component of the present utility model; the width and the degree of depth by the control groove; must control trigger voltage (tigger voltage; VT), cut-ff voltage (Clamping Voltage, Vc) and capacitance (Capacitance, Cp); its structure is not by always being had, and has the feature of promoting effect.
It should be noted that at last: above embodiment only in order to the explanation the utility model and and the described technical scheme of unrestricted the utility model; Therefore, although this specification has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technical scheme and the improvement thereof of the spirit and scope of utility model, and it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (7)
1, a kind of adjustable discharging protection component is formed with the groove of a desired depth and width at a substrate surface, it is characterized in that:
Two sides of described groove are formed with electrode and the termination electrode that is separated from each other, and the groove upper end forms a separator that groove can be covered, and groove inside is the filled media material between two electrodes, and the separator upper end is established protective layer again.
2, adjustable discharging protection component according to claim 1 is characterized in that: described substrate is a ceramic substrate.
3, adjustable discharging protection component according to claim 1 is characterized in that: the described electrode that is formed at groove two sides is copper, silver, platinum or palladium electrode glue.
4, adjustable discharging protection component according to claim 1, it is characterized in that: described dielectric material includes zinc oxide.
5, adjustable discharging protection component according to claim 1 is characterized in that: the described separator that covers on the groove upper end for anti-steam layer, is mainly glass cement.
6, adjustable discharging protection component according to claim 1 is characterized in that: described protective layer is an epoxy resin protective layer polymer.
7, adjustable discharging protection component according to claim 1 is characterized in that: be provided with the termination electrode based on silver again in the outside of termination electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200006120U CN201160195Y (en) | 2008-01-09 | 2008-01-09 | Adjustable electric discharge protection assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200006120U CN201160195Y (en) | 2008-01-09 | 2008-01-09 | Adjustable electric discharge protection assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201160195Y true CN201160195Y (en) | 2008-12-03 |
Family
ID=40110777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200006120U Expired - Fee Related CN201160195Y (en) | 2008-01-09 | 2008-01-09 | Adjustable electric discharge protection assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201160195Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010083727A1 (en) * | 2009-01-23 | 2010-07-29 | Shang-Yo Lee | Surge arrester |
-
2008
- 2008-01-09 CN CNU2008200006120U patent/CN201160195Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010083727A1 (en) * | 2009-01-23 | 2010-07-29 | Shang-Yo Lee | Surge arrester |
| US20110273810A1 (en) * | 2009-01-23 | 2011-11-10 | First Resistor & Condenser Co., Ltd. | Surge arrester |
| TWI409830B (en) * | 2009-01-23 | 2013-09-21 | First Resistor & Condenser Co Ltd | Surge arrester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081203 Termination date: 20120109 |