CN205104494U - SMD gas tightness optical window type detector of miniature pottery - Google Patents
SMD gas tightness optical window type detector of miniature pottery Download PDFInfo
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- CN205104494U CN205104494U CN201520908262.8U CN201520908262U CN205104494U CN 205104494 U CN205104494 U CN 205104494U CN 201520908262 U CN201520908262 U CN 201520908262U CN 205104494 U CN205104494 U CN 205104494U
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Abstract
The utility model discloses a SMD gas tightness optical window type detector of miniature pottery, the detector comprises ceramic casing, light window pane, detector chip, optical window apron, becket and a plurality of metal pin -attached, the utility model discloses an useful technological effect is: the utility model provides a miniature detector, the packaging structure of this detector is simple, and structural stability and gas tightness are all better.
Description
Technical field
The utility model relates to a kind of photodetector encapsulation technology, particularly relates to a kind of miniature ceramic paster formula air-tightness optical window type detector.
Background technology
In order to meet the demand of engineering circles to device miniaturization, the size of detector chip, in continuous microminiaturization, but in prior art, but rarely has the encapsulating structure for independently microdevice.
Utility model content
For the problem in background technology, the utility model proposes a kind of miniature ceramic paster formula air-tightness optical window type detector, its structure is: described detector is made up of ceramic shell, optical window sheet, detector chip, optical window cover plate, becket and multiple metal pins; The profile of described ceramic shell is cuboid, ceramic shell upper surface is provided with the groove of rectangle, bottom portion of groove is provided with multiple pin mounting groove, pin mounting groove outer end is communicated with the circumferential side wall of ceramic shell, a fairlead is provided with, bottom fairlead communication groove and pin mounting groove lower surface in each pin mounting groove; The circumferential profile of described optical window sheet and the circumferential outline of groove; The circumferential profile of described becket and the circumferential outline of ceramic shell, the internal bore profile of becket and the circumferential outline of optical window sheet; The circumferential profile of described optical window cover plate and the circumferential outline of ceramic shell, optical window cover plate lower surface is provided with boss, the circumferential profile of boss mates with becket endoporus, is provided with rectangular through-hole in the middle part of optical window cover plate, leaves spacing between the peripheral edge edge of rectangular through-hole and the peripheral edge edge of boss; Described detector chip is arranged at the bottom portion of groove on ceramic shell, and optical window sheet bottom is socketed in groove, and optical window sheet upper surface is from ceramic shell upper surface projection; Becket is arranged on the upper surface of ceramic shell, becket upper surface is higher than optical window sheet upper surface, boss on optical window cover plate is socketed in the endoporus of becket, and boss lower surface contacts with optical window sheet upper surface, and becket upper surface contacts with optical window cover plate lower surface; Multiple metal pins is arranged in pin mounting groove correspondingly, and the outer end of metal pins extends to beyond the circumferential side wall of ceramic shell, and metal pins the inner is connected with detector chip by connecting lead wire, is socketed in fairlead in the middle part of connecting lead wire; Described becket is formed by brazing metal; Described optical window cover plate adopts kovar alloy to make; Optical window sheet forms the first contact zone with the region of metallic rings contact, and the region that optical window sheet contacts with optical window cover plate forms the second contact zone, and metalized has been carried out on the optical window sheet surface within the scope of described first contact zone and the second contact zone; Fixed by brazing metal welding between becket and optical window sheet, fixed by brazing metal welding between optical window sheet and optical window cover plate, be welded and fixed by parallel seam welding technique between optical window cover plate and becket.
The utility model structure is simple, good airproof performance, and is easy to realize, and is particularly suitable for encapsulating microdevice.
Preferably, the circumferential size of described ceramic shell is 5mm × 4.5mm, the height of ceramic shell is 1.6mm, the circumferential size of groove is 3.6mm × 3.6mm, bottom portion of groove is 0.9mm to the distance of ceramic shell upper surface, distance between ceramic shell lower surface and optical window cover plate upper surface is 2mm, and the gross thickness of optical window cover plate and optical window sheet is 0.6mm, and the circumferential size of rectangular through-hole is 2.2mm × 1.6mm.
Advantageous Effects of the present utility model is: provide a kind of micro detector, and the encapsulating structure of this detector is simple, and structural stability and air-tightness are all better.
Accompanying drawing explanation
Fig. 1, generalized section of the present utility model;
Fig. 2, schematic perspective view of the present utility model;
In figure each mark corresponding to title be respectively: ceramic shell 1, optical window sheet 2, detector chip 3, optical window cover plate 4, becket 5, metal pins 6.
Embodiment
A kind of miniature ceramic paster formula air-tightness optical window type detector, its structure is: described detector is made up of ceramic shell 1, optical window sheet 2, detector chip 3, optical window cover plate 4, becket 5 and multiple metal pins 6;
The profile of described ceramic shell 1 is cuboid, ceramic shell 1 upper surface is provided with the groove of rectangle, bottom portion of groove is provided with multiple pin mounting groove, pin mounting groove outer end is communicated with the circumferential side wall of ceramic shell 1, a fairlead is provided with, bottom fairlead communication groove and pin mounting groove lower surface in each pin mounting groove;
The circumferential profile of described optical window sheet 2 and the circumferential outline of groove;
The circumferential profile of described becket 5 and the circumferential outline of ceramic shell 1, the internal bore profile of becket 5 and the circumferential outline of optical window sheet 2;
The circumferential profile of described optical window cover plate 4 and the circumferential outline of ceramic shell 1, optical window cover plate 4 lower surface is provided with boss, the circumferential profile of boss mates with becket 5 endoporus, be provided with rectangular through-hole in the middle part of optical window cover plate 4, between the peripheral edge edge of rectangular through-hole and the peripheral edge edge of boss, leave spacing;
Described detector chip 3 is arranged at the bottom portion of groove on ceramic shell 1, and optical window sheet 2 bottom is socketed in groove, and optical window sheet 2 upper surface is from ceramic shell 1 upper surface projection; Becket 5 is arranged on the upper surface of ceramic shell 1, becket 5 upper surface is higher than optical window sheet 2 upper surface, boss on optical window cover plate 4 is socketed in the endoporus of becket 5, and boss lower surface contacts with optical window sheet 2 upper surface, and becket 5 upper surface contacts with optical window cover plate 4 lower surface; Multiple metal pins 6 is arranged in pin mounting groove correspondingly, and the outer end of metal pins 6 extends to beyond the circumferential side wall of ceramic shell 1, and metal pins 6 the inner is connected with detector chip 3 by connecting lead wire, is socketed in fairlead in the middle part of connecting lead wire;
Described becket 5 is formed by brazing metal; Described optical window cover plate 4 adopts kovar alloy to make; The region that optical window sheet 2 contacts with becket 5 forms the first contact zone, and the region that optical window sheet 2 contacts with optical window cover plate 4 forms the second contact zone, and metalized has been carried out on optical window sheet 2 surface within the scope of described first contact zone and the second contact zone; Fixed by brazing metal welding between becket 5 and optical window sheet 2, fixed by brazing metal welding between optical window sheet 2 and optical window cover plate 4, be welded and fixed by parallel seam welding technique between optical window cover plate 4 and becket 5.
Further, the circumferential size of described ceramic shell 1 is 5mm × 4.5mm, the height of ceramic shell 1 is 1.6mm, the circumferential size of groove is 3.6mm × 3.6mm, bottom portion of groove is 0.9mm to the distance of ceramic shell 1 upper surface, distance between ceramic shell 1 lower surface and optical window cover plate 4 upper surface is 2mm, and the gross thickness of optical window cover plate 4 and optical window sheet 2 is 0.6mm, and the circumferential size of rectangular through-hole is 2.2mm × 1.6mm.
Claims (2)
1. a miniature ceramic paster formula air-tightness optical window type detector, is characterized in that: described detector is made up of ceramic shell (1), optical window sheet (2), detector chip (3), optical window cover plate (4), becket (5) and multiple metal pins (6);
The profile of described ceramic shell (1) is cuboid, ceramic shell (1) upper surface is provided with the groove of rectangle, bottom portion of groove is provided with multiple pin mounting groove, pin mounting groove outer end is communicated with the circumferential side wall of ceramic shell (1), a fairlead is provided with, bottom fairlead communication groove and pin mounting groove lower surface in each pin mounting groove;
The described circumferential profile of optical window sheet (2) and the circumferential outline of groove;
The circumferential profile of described becket (5) and the circumferential outline of ceramic shell (1), the internal bore profile of becket (5) and the circumferential outline of optical window sheet (2);
The circumferential profile of described optical window cover plate (4) and the circumferential outline of ceramic shell (1), optical window cover plate (4) lower surface is provided with boss, the circumferential profile of boss mates with becket (5) endoporus, optical window cover plate (4) middle part is provided with rectangular through-hole, leaves spacing between the peripheral edge edge of rectangular through-hole and the peripheral edge edge of boss;
Described detector chip (3) is arranged at the bottom portion of groove on ceramic shell (1), and optical window sheet (2) bottom is socketed in groove, and optical window sheet (2) upper surface is from ceramic shell (1) upper surface projection; Becket (5) is arranged on the upper surface of ceramic shell (1), becket (5) upper surface is higher than optical window sheet (2) upper surface, boss on optical window cover plate (4) is socketed in the endoporus of becket (5), boss lower surface contacts with optical window sheet (2) upper surface, and becket (5) upper surface contacts with optical window cover plate (4) lower surface; Multiple metal pins (6) is arranged in pin mounting groove correspondingly, the outer end of metal pins (6) extends to beyond the circumferential side wall of ceramic shell (1), metal pins (6) the inner is connected with detector chip (3) by connecting lead wire, is socketed in fairlead in the middle part of connecting lead wire;
Described becket (5) is formed by brazing metal; Described optical window cover plate (4) adopts kovar alloy to make; The upper region contacted with becket (5) of optical window sheet (2) forms the first contact zone, the upper region contacted with optical window cover plate (4) of optical window sheet (2) forms the second contact zone, and metalized has been carried out on optical window sheet (2) surface within the scope of described first contact zone and the second contact zone; Fixed by brazing metal welding between becket (5) and optical window sheet (2), fixed by brazing metal welding between optical window sheet (2) and optical window cover plate (4), be welded and fixed by parallel seam welding technique between optical window cover plate (4) and becket (5).
2. miniature ceramic paster formula air-tightness optical window type detector according to claim 1, it is characterized in that: the circumferential size of described ceramic shell (1) is 5mm × 4.5mm, the height of ceramic shell (1) is 1.6mm, the circumferential size of groove is 3.6mm × 3.6mm, bottom portion of groove is 0.9mm to the distance of ceramic shell (1) upper surface, distance between ceramic shell (1) lower surface and optical window cover plate (4) upper surface is 2mm, the gross thickness of optical window cover plate (4) and optical window sheet (2) is 0.6mm, and the circumferential size of rectangular through-hole is 2.2mm × 1.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520908262.8U CN205104494U (en) | 2015-11-16 | 2015-11-16 | SMD gas tightness optical window type detector of miniature pottery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520908262.8U CN205104494U (en) | 2015-11-16 | 2015-11-16 | SMD gas tightness optical window type detector of miniature pottery |
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| Publication Number | Publication Date |
|---|---|
| CN205104494U true CN205104494U (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520908262.8U Active CN205104494U (en) | 2015-11-16 | 2015-11-16 | SMD gas tightness optical window type detector of miniature pottery |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106449548A (en) * | 2016-10-28 | 2017-02-22 | 中国电子科技集团公司第四十四研究所 | Mini type packaging structure for electronic multiplying charge-coupled device |
| CN106549078A (en) * | 2016-11-16 | 2017-03-29 | 中国电子科技集团公司第四十四研究所 | Four-quadrant avalanche probe component |
| CN109346534A (en) * | 2018-11-23 | 2019-02-15 | 中国电子科技集团公司第四十四研究所 | A kind of ceramic cartridge structure and its encapsulating structure |
| CN109524369A (en) * | 2018-10-16 | 2019-03-26 | 江苏万邦微电子有限公司 | A kind of chip packing-body based on radiation hardened |
| CN109743857A (en) * | 2019-01-07 | 2019-05-10 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Antivibration electronic component encapsulating structure |
-
2015
- 2015-11-16 CN CN201520908262.8U patent/CN205104494U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106449548A (en) * | 2016-10-28 | 2017-02-22 | 中国电子科技集团公司第四十四研究所 | Mini type packaging structure for electronic multiplying charge-coupled device |
| CN106549078A (en) * | 2016-11-16 | 2017-03-29 | 中国电子科技集团公司第四十四研究所 | Four-quadrant avalanche probe component |
| CN109524369A (en) * | 2018-10-16 | 2019-03-26 | 江苏万邦微电子有限公司 | A kind of chip packing-body based on radiation hardened |
| CN109346534A (en) * | 2018-11-23 | 2019-02-15 | 中国电子科技集团公司第四十四研究所 | A kind of ceramic cartridge structure and its encapsulating structure |
| CN109346534B (en) * | 2018-11-23 | 2024-05-07 | 中国电子科技集团公司第四十四研究所 | Ceramic tube shell structure and packaging structure thereof |
| CN109743857A (en) * | 2019-01-07 | 2019-05-10 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Antivibration electronic component encapsulating structure |
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