CN201022078Y - A center positioning power part - Google Patents
A center positioning power part Download PDFInfo
- Publication number
- CN201022078Y CN201022078Y CNU2006200525301U CN200620052530U CN201022078Y CN 201022078 Y CN201022078 Y CN 201022078Y CN U2006200525301 U CNU2006200525301 U CN U2006200525301U CN 200620052530 U CN200620052530 U CN 200620052530U CN 201022078 Y CN201022078 Y CN 201022078Y
- Authority
- CN
- China
- Prior art keywords
- base
- molybdenum sheet
- center
- tube
- inner face
- 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.)
- Expired - Fee Related
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- Thyristors (AREA)
Abstract
A center-locating power device comprises a dielectric casing, a tube base, a tube cover, a tube core, a cathode molybdenum sheet, and an anode molybdenum sheet, wherein the tube core is clamped between the cathode molybdenum sheet and the anode molybdenum sheet for forming a semiconductor base chip which is arranged between the tube base and the tube cover, the tube base and the tube cover are individually connected with the dielectric casing through an upper connecter and a lower connecter for forming a sealed cavity, and the semiconductor base chip is rightly arranged inside the sealed cavity. The utility model is characterized in that power device adopts the center-locating method to provide an anode molybdenum sheet center-locating hole in the center of the anode molybdenum sheet, and provide a tube base center-locating hole in the inner face center of the tube base, wherein the tube base center-locating hole in the inner face of the tube base is a blind hole. An alignment pin is arranged in the tube base center-locating hole of the tube base inner face and in the anode molybdenum sheet center-locating hole for positioning, and the thyristor semiconductor base chip carries out positioning through the alignment pin, the anode molybdenum sheet center-locating hole and the tube base center-locating hole of the tube base inner face.
Description
Technical field
The utility model is a kind of power unit structure method for arranging and device, is a kind of power scr semiconductor chip location structure method for arranging and device specifically, also can be used for the structure of various thyristors.
Technical background
Thyristor generally all is made up of thyristor semiconductor chip and insulation shell, and in order to guarantee the stable of device, the thyristor semiconductor chip is to clip chip by negative electrode molybdenum sheet and anode molybdenum sheet to constitute.For the thyristor semiconductor chip is accurately located in the device cavity, often need to position.The existing thyristor semiconductor chip location locating rings that adopt position (seeing accompanying drawing 1) more.This kind localization method is locating ring of cover on base, gives thyristor semiconductor chip location by the inner ring of locating ring.There are following some shortcomings in this locate mode:
1. because of locating ring and chip close together, when device was worked, locating ring might be to the direct application of force of encapsulating layer of chip edge, thereby influence the service behaviour of chip.
2. for powerful device, require locating ring size to increase, but locating ring is too big, has just strengthened difficulty to processing with the increasing of chip;
3. with regard to processing, the entity locating ring is because be big ring, so machining accuracy is difficult to guarantee that size is big more that distortion also strengthens thereupon, and this distortion is difficult to avoid.
In sum, present thyristor semiconductor chip location comes with some shortcomings really, therefore necessary this is improved.
The utility model content
The utility model is intended to overcome the deficiency of existing thyristor semiconductor chip location, semiconductor-based sheet positioning method of a kind of new thyristor and device are provided, this power scr semiconductor chip location structure is simpler, and machining accuracy guarantees easily, and can not influence the service behaviour of chip.
The purpose of this utility model is achieved by following technical proposals: a kind of power scr, comprise insulation shell, base, the pipe lid, tube core, negative electrode molybdenum sheet and anode molybdenum sheet, tube core is clipped between negative electrode molybdenum sheet and the anode molybdenum sheet, form semiconductor chip, semiconductor chip is placed in again between base and the pipe lid, base is connected with insulation shell with following connector by upper connector respectively again with the pipe lid, form a closed cavity, semiconductor chip just in time places within the closed cavity, it is characterized in that: the method for taking centralized positioning, center at the anode molybdenum sheet has location hole, inner face center at base also has location hole, and the location hole of base inner face is a blind hole, be useful on the alignment pin of location in the location hole of anode molybdenum sheet center positioning hole and base inner face, the thyristor semiconductor chip is that the location hole by alignment pin and anode molybdenum sheet center positioning hole and base inner face positions.
Advantage of the present utility model is:
1, because of locating ring and chip close together, when device was worked, locating ring might be to the direct application of force of encapsulating layer of chip edge, thereby influence the service behaviour of chip.And alignment pin is positioned at official's shell central authorities, and contact is base and anode molybdenum sheet with it, so can not impact to chip:
2,, require locating ring size to increase, but locating ring is too big, has just strengthened difficulty to processing with the increasing of chip for powerful device;
3, the centralized positioning pin has adopted identical raw material with locating ring, but because of the shape difference, after the employing centralized positioning finger setting, has saved raw material greatly:
4, with regard to processing, the column alignment pin of entity is compared with the ring-type locating ring, the easier assurance of machining accuracy, and for locating ring, size is big more, and distortion also strengthens thereupon, and this distortion is difficult to avoid.
Description of drawings
Fig. 1 is the utility model thyristor semiconductor chip location structure schematic diagram.
Among the figure: the 1-base; 2-manages lid; The 3-tube core; 4-gate pole assembly; The 5-alignment pin; 6-negative electrode molybdenum sheet; 7-anode molybdenum sheet; 8-ceramic insulation shell; 9-anode molybdenum sheet center positioning hole; 10-base center positioning hole.
Embodiment
Accompanying drawing has provided a kind of schematic diagram of the present utility model, and the utility model will be further described below in conjunction with accompanying drawing.
By accompanying drawing as can be seen the utility model be a kind of power scr, comprise ceramic insulation shell 9, base 1, pipe covers 2, tube core 3, negative electrode molybdenum sheet 6 and anode molybdenum sheet 7, tube core 3 is clipped between negative electrode molybdenum sheet 6 and the anode molybdenum sheet 7, form semiconductor chip, semiconductor chip is placed in base 1 again and pipe covers between 2, and by centralized positioning pin 5 location, the pipe cover 2 and negative electrode molybdenum sheet 6 between be provided with gate pole assembly 4, base 1 covers 2 with pipe and is connected with ceramic insulation shell 8 with following connector by upper connector respectively again, form a closed cavity, semiconductor chip just in time places within the closed cavity.It is characterized in that: the method for taking centralized positioning, have anode molybdenum sheet center positioning hole 9 at the center of anode molybdenum sheet 7, inner face center at base 1 also has base center positioning hole 10, and the base center positioning hole of base inner face is a blind hole, be useful on the alignment pin 5 of location in the base center positioning hole of anode molybdenum sheet center positioning hole and base inner face, the thyristor semiconductor chip is to position by the base center positioning hole 10 of alignment pin 5 and anode molybdenum sheet center positioning hole 9 with the base inner face.
Claims (1)
1. the power device of a centralized positioning, comprise insulation shell, base, the pipe lid, tube core, negative electrode molybdenum sheet and anode molybdenum sheet, tube core is clipped between negative electrode molybdenum sheet and the anode molybdenum sheet, form semiconductor chip, semiconductor chip is placed in again between base and the pipe lid, base is connected with insulation shell with following connector by upper connector respectively again with the pipe lid, form a closed cavity, semiconductor chip just in time places within the closed cavity, it is characterized in that: have anode molybdenum sheet center positioning hole at the center of anode molybdenum sheet, inner face center at base also has the base center positioning hole, and the base center positioning hole of base inner face is a blind hole, be useful on the alignment pin of location in the base center positioning hole of anode molybdenum sheet center positioning hole and base inner face, the thyristor semiconductor chip is that the base center positioning hole by alignment pin and anode molybdenum sheet center positioning hole and base inner face positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200525301U CN201022078Y (en) | 2006-10-19 | 2006-10-19 | A center positioning power part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200525301U CN201022078Y (en) | 2006-10-19 | 2006-10-19 | A center positioning power part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201022078Y true CN201022078Y (en) | 2008-02-13 |
Family
ID=39089491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200525301U Expired - Fee Related CN201022078Y (en) | 2006-10-19 | 2006-10-19 | A center positioning power part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201022078Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107317574A (en) * | 2017-06-09 | 2017-11-03 | 南京理工大学 | From cooling high voltage pulse switch device |
| CN109494206A (en) * | 2017-09-12 | 2019-03-19 | 株洲中车时代电气股份有限公司 | A kind of thyristor |
| CN115091393A (en) * | 2022-07-21 | 2022-09-23 | 宁波晶创科技有限公司 | Positioning structure convenient to installation of ion gun molybdenum sheet |
-
2006
- 2006-10-19 CN CNU2006200525301U patent/CN201022078Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107317574A (en) * | 2017-06-09 | 2017-11-03 | 南京理工大学 | From cooling high voltage pulse switch device |
| CN107317574B (en) * | 2017-06-09 | 2020-08-11 | 南京理工大学 | Self-cooling high-voltage pulse switch device |
| CN109494206A (en) * | 2017-09-12 | 2019-03-19 | 株洲中车时代电气股份有限公司 | A kind of thyristor |
| CN115091393A (en) * | 2022-07-21 | 2022-09-23 | 宁波晶创科技有限公司 | Positioning structure convenient to installation of ion gun molybdenum sheet |
| CN115091393B (en) * | 2022-07-21 | 2024-03-01 | 宁波晶创科技有限公司 | Positioning structure convenient for installation of molybdenum sheet of ion gun |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080213 Termination date: 20151019 |
|
| EXPY | Termination of patent right or utility model |