CN201717839U - Quartz crystal resonator - Google Patents
Quartz crystal resonator Download PDFInfo
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- CN201717839U CN201717839U CN2010201736537U CN201020173653U CN201717839U CN 201717839 U CN201717839 U CN 201717839U CN 2010201736537 U CN2010201736537 U CN 2010201736537U CN 201020173653 U CN201020173653 U CN 201020173653U CN 201717839 U CN201717839 U CN 201717839U
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Abstract
The utility model relates to a quartz crystal resonator and a processing technology, belonging to the quartz crystal resonator structure technological field. The quartz crystal resonator comprises a substrate (2), which is covered by a casing (1) at the upper part and together with insulators (5) and a lead wire (6), forms a base. Reeds (4) disposed in the casing (1) for supporting a quartz wafer are arranged on a nailhead of the lead wire (6) in a spot welding manner. The quartz crystal resonator is characterized in that the distance between outer ends of the two reeds (4) is 4.5mm or less, the center distance between two insulators (5) is 2.5mm or less, the height of the substrate (2) is 0.7mm or less, the size of the quartz wafer is 4*1.8mm or less and the pressure sealing method is the resistance welding packaging method. The quartz crystal resonator of the utility model realizes the quartz crystal resonator miniaturization. The crystal technology of a surface-mounted quartz crystal resonator is combined with the pressure sealing technology of a wire-leading type quartz crystal resonator to produce a small-size quartz crystal resonator surface-mounted product, a small-size surface-mounted quartz crystal resonator by the resistance welding method.
Description
Technical field
The utility model relates to a kind of quartz-crystal resonator, belongs to the quartz-crystal resonator technical field of structures.
Background technology
The quartz-crystal resonator operation principle is a kind of resonating device that utilizes the inverse piezoelectric effect of quartz crystal (silicon dioxide, single crystals structure α quartz) to make.Quartz-crystal resonator has become the vitals of digital code information society from now at present, and its field, staple market is that the communications field, industry are used, people's livelihood electronic device field; That quartz crystal unit has is high-accuracy, the characteristics of high stability, needing to be widely used in the various kinds of equipment, instrument, electronic product of frequency stabilization and frequency-selecting, and be indispensable key element in the current electronic product.Because the development trend of electronic product is a multifunction: functions such as Internet, E-Mail, GPS, photograph, shooting, large scale color LCD screen are adopted in a large number, the circuit board welding develops into Reflow Soldering by wave-soldering, so surface mount and highly low miniaturization product become the developing direction of quartz-crystal resonator, for example the people's livelihood such as 3G mobile is controlled at 2.5mm and following with electronics product requirement height.
The type of quartz-crystal resonator mainly contains wire type pedestal and surface attaching type pedestal at present, and the wire type pedestal is also referred to as 49s/SMD type quartz-crystal resonator as shown in Figure 1, its process stabilizing, price are low, basically all produce at home, but it can't accomplish miniaturization that reason is:
1, quartz wafer is of a size of 8mm*2mm;
2, soldering and sealing mode is an electric resistance welding, and when substrate height during less than 0.7mm, STRESS VARIATION is big behind the press seal, and substrate deformation causes quartz-crystal resonator frequency scattered error big, surpasses 30ppm and not controlled, can't satisfy specification.
The surface attaching type pedestal as shown in Figure 3, its substrate structure is to add becket on pottery, because complex structure, domestic technology is immature, and SMD type quartz-crystal resonator soldering and sealing mode is parallel weldering, domestic production equipment can not guarantee the soldering and sealing precision, so this quartz crystal resonator base is produced in Japan substantially, causes SMD type quartz-crystal resonator production cost much larger than 49s/SMD type product.
Summary of the invention
The purpose of this utility model is to provide a kind of not enough point that can remedy said two products, and the advantage of mating surface pasting type SMD product and wire type 49s product, be applicable to that to the requirement of electronic product height of contour at 2.5mm and following, the circuit board welding manner is Reflow Soldering; Or height of contour is at 2mm and following, and the circuit board welding manner is the quartz-crystal resonator that the cost of wave-soldering mode is low, volume is little.
Quartz-crystal resonator of the present utility model is achieved through the following technical solutions:
Quartz-crystal resonator comprises the substrate 2 of top covering shell 1, and substrate 2 constitutes pedestals with insulator 5, lead-in wire 6, connects on the ailhead of lead-in wire 6 to be located at the reed 4 that is used to support quartz wafer in the shell 1, it is characterized in that
Two reeds, 4 outer end spacing A-B are 4.5mm and following, and two insulators, 5 center distance are 2.5mm and following, and the height of substrate 2 is 0.7mm and following, and quartz wafer is 4*1.8mm and following, and the press seal mode encapsulates for the electric resistance welding mode.
Further, described two reeds, 4 outer end spacings are 3.5-4.5mm, two insulators, 5 center distance 2-2.5mm, and quartz wafer is (3.5-4) * 1.8mm, the height of substrate 2 is 0.4-0.7mm.
Angle a between described reed 4 and the substrate 2 is 6 ~ 8 ° of oblique angles.
Resonator length is at 7mm and following, and width is at 4mm and following, and wire type resonator height is at 1.8mm and following; The substrate of surface attaching type resonator is equipped with pad 32 times, and pad 3 has lead-in wire 6 openings that pass 7 and groove 8, and the height of surface attaching type resonator is at 2.5mm and following.
Further, resonator length is 6-7mm, and width is 3-4mm, and wire type resonator height is 1.5-1.8mm, and surface attaching type resonator height is 2-2.5mm.
Quartz-crystal resonator, concrete scheme one is
1) quartz wafer is selected: the 4*1.8mm quartz wafer, and frequency range is from 10MHz-50MHz; The overtone frequency scope is from 30MHz-125MHz;
2) shell: the wide * height of the long * of shell sizes is 6.5mm*1.20mm*0.15mm;
3) substrate: the wide * height of the long * of sizes of substrate is 6.5mm*3.75mm*0.7mm;
4) insulator: the diameter * height of insulator sizes is φ 1.1mm*0.7mm.
Concrete scheme two is
1) quartz wafer is selected: the 3.5*1.8mm quartz wafer, and frequency range is from 10MHz-50MHz; The overtone frequency scope is from 30MHz-125MHz;
2) shell: the wide * height of the long * of shell sizes is 6.5mm*1.0mm*0.15mm;
3) substrate: the wide * height of the long * of sizes of substrate is 6.5mm*3.75mm*0.5mm;
4) insulator: the diameter * height of insulator sizes is φ 1.1mm*0.5mm.
The processing technology of quartz-crystal resonator, it comprises the steps
(1), and does the nickel plating wicking and handle with insulator 5, lead-in wire 6, electroplate substrate 2 sinter moldings;
(2) spot welding reed 4 on substrate lead-in wire ailhead;
(3) with 4*1.8mm and following specification quartz wafer, be connected on the reed 4 with conducting resinl;
(4) carry out the frequency adjustment;
(5) only seal with the electric resistance welding mode and finish, make the wire type quartz-crystal resonator.
Also comprise
(6) put the insulation spacer 3 that has lead-in wire 6 openings that pass 7 and groove 8, lead-in wire 6 is bended in opening 7 and the groove 8 of inserted shim 3, make the surface attaching type quartz-crystal resonator.
The utility model quartz-crystal resonator has been realized the quartz-crystal resonator miniaturization, utilize the wafer technologies of surface sticked quartz crystal resonator to combine with the pressure sealing technology of band wire type quartz-crystal resonator, product is pasted on production small size quartz-crystal resonator surface, is the small size surface attaching type quartz-crystal resonator under the electric resistance welding mode.
The utility model quartz-crystal resonator can remedy the deficiency of existing two kinds of products of prior art, and the advantage of mating surface pasting type and wire type is applicable to that to the requirement of electronic product height of contour at 2.5mm and following, the circuit board welding manner is Reflow Soldering; Or height of contour is at 2mm and following, and the circuit board welding manner is the people's livelihood of a wave-soldering mode electronics product scope, as novel electron products such as 3G mobile, silicon tuners; Cost is low, volume is little, can substitute the high surface of present price and paste quartz-crystal resonator.
Description of drawings
Fig. 1: prior art 49s/SMD type quartz-crystal resonator structural representation;
The vertical view of Fig. 2: Fig. 1;
Fig. 3: prior art SMD type quartz-crystal resonator structural representation;
The left view of Fig. 4: Fig. 3;
The upward view of Fig. 5: Fig. 3;
The rearview of Fig. 6: Fig. 3;
Fig. 7: the utility model embodiment 1 wire type quartz-crystal resonator structural representation;
Fig. 8: the utility model embodiment 2 surface attaching type quartz-crystal resonator structural representations.
1, shell, 2, substrate, 3, pad, 4, reed, 5, insulator, 6, lead-in wire, 7, opening, 8, groove.
Embodiment
Following with reference to accompanying drawing, provide embodiment of the present utility model, be used for formation of the present utility model is further specified.
Embodiment 1
With reference to figure 7, quartz-crystal resonator, the substrate 2 that comprises top covering shell 1, substrate 2 sinters pedestal into insulator 5, lead-in wire 6, and spot welding connects and is located at that spacing is 4.5mm between 4, two reeds of reed, 4 outer end A, the B that is used to support quartz wafer in the shell 1 on the ailhead of lead-in wire 6, two insulator 5 center distance 2.5mm, the height of substrate 2 is 0.7mm, and quartz wafer is 4*1.8mm, and the press seal mode between shell 1 and the pedestal encapsulates for the electric resistance welding mode; Angle a is 6 ~ 8 ° of oblique angles between reed 4 and the substrate 2.
Wire type quartz-crystal resonator length is at 7mm, and width is at 4mm, and height is at 1.8mm.
Foundation structure analysis contrast
49s/SMD type, SMD type, 7040 type quartz-crystal resonator sizes, structure are as follows:
| Long | Wide | High | Substrate material | Packing forms | Wafer size | |
| Fig. 1: band wire type | 11.4 | 4.7 | 4.0 | Ferroalloy | |
8*2.0 |
| Fig. 3: surperficial subsides type | 7.0 | 5.0 | 1.2 | Pottery | |
5*2.5 |
| Fig. 5: the utility model | 7.0 | 4.0 | 1.8 | Ferroalloy | Electric resistance welding | 4*1.8 |
The utility model 7040 type quartz-crystal resonator (Fig. 5) core technologies are: when quartz-crystal resonator reduced the substrate height to 0.4mm-0.7mm, still controlled by frequency, resistance characteristic behind the electric resistance welding, the frequency scattered error was less than 10ppm; Its main path is by adopting the quartz wafer of miniaturization, shorten contact spacing and insulator pitch of holes, substrate is shortened at length direction, improve the intensity of substrate, thereby solved quartz-crystal resonator after the substrate height reduces, frequency and resistance affected by force behind electric resistance welding changes greatly, can't guarantee the problem of electric parameter; Realized the target of quartz-crystal resonator miniaturization under the electric resistance welding mode.
Make principle:
1) quartz wafer is selected: the 4*1.8mm quartz wafer, and frequency range is from 10MHz-50MHz; The overtone frequency scope is from 30MHz-125MHz;
2) shell: the wide * height of the long * of shell sizes is 6.5mm*1.20mm*0.15mm; Select for use iron-clad to electroplate scheme;
3) reed: thickness changes 0.08mm into by 0.10mm; Be 6 ~ 8 ° of oblique angles by change into base plate parallel with base plate;
4) substrate: the wide * height of the long * of sizes of substrate is 6.5mm*3.75mm*0.7mm;
5) insulator: the diameter * height of insulator sizes is φ 1.1mm*0.7mm.
Processing technology
(1), and does the nickel plating wicking and handle with insulator 5, lead-in wire 6, electroplate substrate 2 sinter moldings;
(2) spot welding reed 4 on substrate lead-in wire ailhead;
(3), be connected on the reed 4 with conducting resinl with 4*1.8mm specification quartz wafer;
(4) carry out the frequency adjustment;
(5) only seal with the electric resistance welding mode and finish, make the wire type quartz-crystal resonator.
Embodiment 2
Be that with the difference of embodiment 1 spacing is 4mm between two reed 4 outer end A, the B, two insulator 5 center distance 2mm, the height of substrate 2 is 0.4mm, and quartz wafer is 3.5*1.8mm, and the press seal mode encapsulates for the electric resistance welding mode; Angle a between reed 4 and the substrate 2 is 6 ~ 8 ° of oblique angles.
Wire type quartz-crystal resonator length is at 6mm, and width is at 3mm, and height is at 1.5mm.
1) quartz wafer is selected: the 3.5*1.8mm quartz wafer, and frequency range is from 10MHz-50MHz; The overtone frequency scope is from 30MHz-125MHz;
2) shell: the wide * height of the long * of shell sizes is 6.5mm*1.0mm*0.15mm;
3) substrate: the wide * height of the long * of sizes of substrate is 6.5mm*3.75mm*0.5mm;
4) insulator: the diameter * height of insulator sizes is φ 1.1mm*0.5mm.
With reference to figure 8, be with the difference of embodiment 1, processing technology seal with the electric resistance welding mode only finish after, substrate also puts insulation spacer 32 times, pad 3 has lead-in wire 6 openings that pass 7 and groove 8, to go between and 6 bend in the inserted shim, be made into height 2.5mm surface attaching type quartz-crystal resonator.
Effect: above embodiment 7040 type electric resistance welding mode quartz-crystal resonator wire type volumes are 6.5mm*3.75mm*1.5mm; The surface attaching type volume is 7mm*4mm*2mm; Small product size is 25% of existing wire type quartz-crystal resonator, and material cost is 50% of a surface sticked quartz crystal resonator, and material domesticizes fully, can produce in batches, has reached product miniaturization and the low purpose of production cost.
The utility model can have the various deformation scheme, above-mentioned only is example of the present utility model, be not so limit to interest field of the present utility model, all lead-in wire shape quartz-crystal resonator height are processed into surface sticked quartz crystal resonator height and all are contained within the interest field of the present utility model at 2.5mm and following product at 1.8mm and following.
Claims (7)
1. quartz-crystal resonator comprises the substrate (2) of top covering shell (1), and substrate (2) constitutes pedestal with insulator (5), lead-in wire (6), connects on the ailhead of lead-in wire (6) to be located at the reed (4) that is used to support quartz wafer in the shell (1), it is characterized in that
Two reeds (4) outer end spacing is 4.5mm and following, and two insulators (5) center distance is 2.5mm and following, and the height of substrate (2) is 0.7mm and following, and quartz wafer is 4*1.8mm and following, and the press seal mode encapsulates for the electric resistance welding mode.
2. according to the described quartz-crystal resonator of claim 1, it is characterized in that
Angle (a) between described reed (4) and the substrate (2) is 6 ~ 8 ° of oblique angles.
3. according to the described quartz-crystal resonator of claim 1, it is characterized in that described
Two reeds (4) outer end spacing is 3.5-4.5mm, two insulators (5) center distance 2-2.5mm, and the height of substrate (2) is 0.4-0.7mm, quartz wafer is (3.5-4) * 1.8mm.
4. according to the described quartz-crystal resonator of claim 1, it is characterized in that
Resonator length is at 7mm and following, and width is at 4mm and following, and wire type resonator height is at 1.8mm and following, and surface attaching type resonator height is at 2.5mm and following.
5. according to the described quartz-crystal resonator of claim 4, it is characterized in that
Resonator length is 6-7mm, and width is 3-4mm, and wire type resonator height is 1.5-1.8mm, and surface attaching type resonator height is 2-2.5mm.
6. according to the described quartz-crystal resonator of claim 1, it is characterized in that
1) quartz wafer is selected: the 4*1.8mm quartz wafer, and frequency range is from 10MHz-50MHz; The overtone frequency scope is from 30MHz-125MHz;
2) shell: the wide * height of the long * of shell sizes is 6.5mm*1.20mm*0.15mm;
3) substrate: the wide * height of the long * of sizes of substrate is 6.5mm*3.75mm*0.7mm;
4) insulator: the diameter * height of insulator sizes is φ 1.1mm*0.7mm.
7. according to the described quartz-crystal resonator of claim 1, it is characterized in that
1) quartz wafer is selected: the 3.5*1.8mm quartz wafer, and frequency range is from 10MHz-50MHz; The overtone frequency scope is from 30MHz-125MHz;
2) shell: the wide * height of the long * of shell sizes is 6.5mm*1.0mm*0.15mm;
3) substrate: the wide * height of the long * of sizes of substrate is 6.5mm*3.75mm*0.5mm;
4) insulator: the diameter * height of insulator sizes is φ 1.1mm*0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201736537U CN201717839U (en) | 2010-04-24 | 2010-04-24 | Quartz crystal resonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201736537U CN201717839U (en) | 2010-04-24 | 2010-04-24 | Quartz crystal resonator |
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| Publication Number | Publication Date |
|---|---|
| CN201717839U true CN201717839U (en) | 2011-01-19 |
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| CN2010201736537U Expired - Fee Related CN201717839U (en) | 2010-04-24 | 2010-04-24 | Quartz crystal resonator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101814904A (en) * | 2010-04-24 | 2010-08-25 | 烟台大明电子有限公司 | Quartz crystal resonator and manufacture process thereof |
| CN103840787A (en) * | 2013-12-31 | 2014-06-04 | 四川索斯特电子有限公司 | Quartz crystal resonator base |
-
2010
- 2010-04-24 CN CN2010201736537U patent/CN201717839U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101814904A (en) * | 2010-04-24 | 2010-08-25 | 烟台大明电子有限公司 | Quartz crystal resonator and manufacture process thereof |
| CN103840787A (en) * | 2013-12-31 | 2014-06-04 | 四川索斯特电子有限公司 | Quartz crystal resonator base |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: YANTAI DYNAMIC ELECTRONICS CO., LTD. Assignor: Li Bin| Li Weiqiang|Huang Yi Contract record no.: 2011370000636 Denomination of utility model: Resonator of quartz crystal Granted publication date: 20110119 License type: Exclusive License Record date: 20111231 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20130424 |