CN112904168B - Semiconductor breakdown voltage detection device - Google Patents
Semiconductor breakdown voltage detection device Download PDFInfo
- Publication number
- CN112904168B CN112904168B CN202110044008.8A CN202110044008A CN112904168B CN 112904168 B CN112904168 B CN 112904168B CN 202110044008 A CN202110044008 A CN 202110044008A CN 112904168 B CN112904168 B CN 112904168B
- Authority
- CN
- China
- Prior art keywords
- rod
- breakdown voltage
- voltage detection
- electromagnet
- workbench
- 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.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/26—Testing of individual semiconductor devices
- G01R31/2601—Apparatus or methods therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/129—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of components or parts made of semiconducting materials; of LV components or parts
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Individual Semiconductor Devices (AREA)
Abstract
The invention relates to the technical field of semiconductor breakdown voltage detection, and discloses a semiconductor breakdown voltage detection device which comprises a machine body, wherein a workbench is rotatably arranged below a conductive block, a piston rod is movably arranged inside the workbench, a moving rod is movably arranged above the right end of a second rotating rod, a push plate is movably arranged on the left side of the moving rod, a second electromagnet is fixedly arranged below the push plate, and a control switch is fixedly arranged above the control rod. This semiconductor breakdown voltage detection device places the direction through the diode correct, then first electro-magnet attracts the magnetic pole to remove to drive the piston rod and remove and breathe in, make the diode adsorb in the workstation top, if the direction of placing of diode is incorrect, then second electromagnetism ferromagnetism increase and promote the push pedal rebound, make control lever and control switch contact, make the inside current direction of conducting block change, realized that the positive and negative pole that need not to distinguish the diode is automatic to be fixed.
Description
Technical Field
The invention relates to the technical field of semiconductor breakdown voltage detection, in particular to a semiconductor breakdown voltage detection device.
Background
The diode is an electronic device made of semiconductor materials, when the reverse voltage applied to the diode exceeds a certain value, the reverse current can be suddenly increased, and then electric breakdown can occur.
Accordingly, one skilled in the art provides a semiconductor breakdown voltage detection apparatus to solve the above problems in the background art.
Disclosure of the invention technical problem (1)
Aiming at the defects of the prior art, the invention provides a semiconductor breakdown voltage detection device which has the advantages of automatically distinguishing diodes, automatically sorting the diodes, avoiding resource waste and the like, and solves the problems that the resources are wasted because the damaged diodes are broken when the anode and the cathode of the diodes are manually distinguished and then fixed and sorted by the conventional equipment.
(II) technical scheme
In order to realize the purpose of automatically distinguishing the positive electrode and the negative electrode of the diode, fixing and automatically sorting the diode after detection, the invention provides the following technical scheme:
a semiconductor breakdown voltage detection device comprises a machine body, wherein an air bag is fixedly arranged above the machine body, a movable plate is movably arranged above the air bag, a first rotating rod is respectively and rotatably arranged on two sides of the movable plate, a first telescopic rod is fixedly arranged at one end, far away from the movable plate, of the first rotating rod, a conductive block is fixedly connected at the lower end of the first telescopic rod, a workbench is rotatably arranged below the conductive block, a piston rod is respectively and movably arranged on two sides of the inner part of the workbench, a magnetic rod is movably arranged at one end of the piston rod, a first electromagnet is rotatably arranged at one side, far away from the piston rod, of the magnetic rod, a limiting rod is movably arranged at one side, far away from the magnetic rod, of the first electromagnet, a second rotating rod is rotatably arranged above the limiting rod, a moving rod is movably arranged above one end, far away from the limiting rod, of the second rotating rod, a push plate is movably arranged at one side, far away from the conductive block, of the moving rod, push pedal and carriage release lever fixed connection, the below fixed mounting of push pedal has the second electro-magnet, the upper end of carriage release lever is rotated and is installed the control lever, the top fixed mounting of control lever has control switch, left side below fixed mounting of workstation has good pipe, right side below fixed mounting of workstation has the waste pipe, the below fixed mounting of workstation has the support frame, the support frame rotates with the workstation and is connected, the both sides of support frame are fixedly connected with a second telescopic link respectively, the outside movable mounting of second telescopic link has the stabilizer bar, stabilizer bar and workstation fixed connection, the slide bar is installed to the below of stabilizer bar, one side slidable mounting that the stabilizer bar was kept away from to the slide bar has the steadying frame, the inboard fixed mounting of steadying frame has the third electro-magnet, the inboard of third electro-magnet is rotated and is installed the swinging arms, the outside fixed mounting of swinging arms has the contact, the both sides fixed mounting of swinging arms has extension spring.
Preferably, the piston rod is rotatably connected with the magnetic rod, so that when the workbench rotates, the piston rod can rotate along with the workbench without interference.
Preferably, the two sides of the first electromagnet are provided with limiting grooves corresponding to the limiting rods, and the limiting rods are matched with the limiting grooves, so that the first electromagnet is fixed.
Preferably, the magnetism generated by electrifying the second electromagnet is the same as that of the push plate on the opposite surface, so that the second electromagnet can push the push plate to move upwards when being electrified.
Preferably, the good pipe and the waste pipe are not in the same plane with the magnetic rod, so that the worktable does not interfere with the magnetic rod when rotating, and the diode is poured into the good pipe and the waste pipe.
Preferably, the inclined plane of the lower end of the stabilizer bar has the same inclined angle with the inclined plane of the outer end of the sliding rod, so that when the sliding rod moves, the stabilizer bar can be pushed to move upwards and support the workbench.
Preferably, the contact is electrically connected to the third electromagnet, and can be contacted with the contact when the swinging rod rotates, so that the magnetic direction of the third electromagnet is changed.
(III) advantageous effects
Compared with the prior art, the invention provides a semiconductor breakdown voltage detection device, which has the following beneficial effects:
1. the semiconductor breakdown voltage detection device is characterized in that a diode to be detected is placed on a workbench, then a first telescopic rod extends to drive a conductive block to be in contact with the diode, then the conductive block is electrified to the diode, if the placing direction of the diode is correct at the moment, current cannot flow into the right conductive block from the left conductive block, then a first electromagnet attracts a magnetic rod to move and drives a piston rod to move to suck air, so that the diode is adsorbed above the workbench, then the diode is fixed, if the placing direction of the diode is incorrect, the current flows into the right conductive block from the left conductive block through the diode, then the current is gradually increased, so that the second electromagnet is increased and pushes a push plate to move upwards, a moving rod is driven to move upwards, a control rod is driven to be in contact with a control switch, and the current direction inside the conductive block is changed, therefore, the diode does not need to be moved, the voltage of the diode is continuously increased in the reverse direction, the effect that the positive electrode and the negative electrode of the diode do not need to be distinguished and automatic fixing and detection are achieved, and the detection efficiency of the diode is improved.
2. When the voltage is increased to a certain value, the airbag is inflated and expanded and drives the movable plate to move upwards, so that the first telescopic rod is reset, the first electromagnet is powered off, the limiting effect on the diode is removed, if the diode is not punctured, the driving motor in the oscillating rod cannot be started, meanwhile, the third electromagnet on the left side is powered on through the contacts on the upper side and the lower side, then the magnetic attraction is generated to move the sliding rod on the left side, so that the stabilizing rod on the left side moves downwards, the workbench inclines leftwards, the diode slides into the good tube to be recycled, after the diode is punctured, the current flows into the conductive block on the right side through the diode, the driving motor in the oscillating rod is started, the oscillating rod is driven to rotate to be in contact with the contacts on the left side and the right side, so that the third electromagnet on the right side attracts the sliding rod to move, and the right side of the stabilizing rod moves downwards, the workbench is enabled to incline rightwards, then the punctured diodes enter the waste material pipe to be recycled, the effect of automatically sorting the diodes is achieved, the damaged diodes can be recycled in good condition, and resource waste is avoided.
Drawings
FIG. 1 is a schematic view of the interior of the structure of the present invention;
FIG. 2 is a partial view of the interior of the structure of the present invention;
FIG. 3 is an enlarged view of the structure shown in FIG. 2 at A according to the present invention;
FIG. 4 is an internal view of the lower half of the structure of the present invention;
FIG. 5 is an enlarged view of the structure shown at B in FIG. 4 according to the present invention.
In the figure: 1. a body; 2. an air bag; 3. moving the plate; 4. a first rotating lever; 5. a first telescopic rod; 6. a conductive block; 7. a work table; 8. a piston rod; 9. a magnetic rod; 10. a first electromagnet; 11. a limiting rod; 12. a second rotating rod; 13. a travel bar; 14. pushing the plate; 15. a second electromagnet; 16. a control lever; 17. a control switch; 18. a good pipe; 19. a waste pipe; 20. a support frame; 21. a second telescopic rod; 22. a stabilizer bar; 23. a stabilizer frame; 24. a slide bar; 25. a third electromagnet; 26. a swing lever; 27. a contact; 28. a tension spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a semiconductor breakdown voltage detecting device includes a body 1, an airbag 2 is fixedly mounted above the body 1, a moving plate 3 is movably mounted above the airbag 2, a first rotating rod 4 is rotatably mounted on each of two sides of the moving plate 3, a first telescopic rod 5 is fixedly mounted on one end of the first rotating rod 4 away from the moving plate 3, a conductive block 6 is fixedly connected to the lower end of the first telescopic rod 5, a worktable 7 is rotatably mounted below the conductive block 6, a piston rod 8 is movably mounted on each of two sides inside the worktable 7, the piston rod 8 is rotatably connected to the magnetic rod 9, so that when the worktable 7 rotates, the piston rod 8 can rotate with the rotation without interference, the magnetic rod 9 is movably mounted at the left end of the piston rod 8, a first electromagnet 10 is rotatably mounted on one side of the magnetic rod 9 away from the piston rod 8, and a limiting groove corresponding to the limiting rod 11 is formed on each of two sides of the first electromagnet 10, the limiting rod 11 is matched with the limiting groove, so that the first electromagnet 10 is fixed, the limiting rod 11 is movably mounted on one side, away from the magnetic rod 9, of the first electromagnet 10, the second rotating rod 12 is rotatably mounted above the limiting rod 11, the moving rod 13 is movably mounted above one end, away from the limiting rod 11, of the second rotating rod 12, and the pushing plate 14 is movably mounted on one side, away from the conductive block 6, of the moving rod 13.
The push plate 14 is fixedly connected with the moving rod 13, a second electromagnet 15 is fixedly installed below the push plate 14, the magnetism generated by electrifying the second electromagnet 15 is the same as that of the push plate 14 on the opposite surface, so that the second electromagnet 15 can push the push plate 14 to move upwards by electrifying, a control rod 16 is rotatably installed at the upper end of the moving rod 13, a control switch 17 is fixedly installed above the control rod 16, a good pipe 18 is fixedly installed below the left side of the workbench 7, the good pipe 18 and the waste pipe 19 are not in the same plane with the magnetic rod 9, so that the workbench 7 cannot interfere with the magnetic rod 9 during rotation, diodes are poured into the good pipe 18 and the waste pipe 19, a waste pipe 19 is fixedly installed below the right side of the workbench 7, a support frame 20 is fixedly installed below the workbench 7, the support frame 20 is rotatably connected with the workbench 7, two sides of the support frame 20 are respectively and fixedly connected with a second telescopic rod 21, the outer side of the second telescopic rod 21 is movably provided with a stabilizer bar 22, the lower end inclined plane of the stabilizer bar 22 has the same inclined plane inclined angle with the outer end of the sliding rod 24, when the sliding rod 24 moves, the stabilizer bar 22 can be pushed to move upwards and support the workbench 7, the stabilizer bar 22 is fixedly connected with the workbench 7, the sliding rod 24 below the stabilizer bar 22, one side of the sliding rod 24 away from the stabilizer bar 22 is slidably provided with a stabilizing frame 23, the inner side of the stabilizing frame 23 is fixedly provided with a third electromagnet 25, the inner side of the third electromagnet 25 is rotatably provided with a swing rod 26, the outer side of the swing rod 26 is fixedly provided with a contact 27, the contact 27 is electrically connected with the third electromagnet 25, when the swing rod 26 rotates, the contact 27 can be contacted with the contact 27, thereby the magnetic direction of the third electromagnet 25 is changed, and both sides of the swing rod 26 are fixedly provided with a tension spring 28.
The working principle is as follows: when the device works, a diode to be detected is placed on a workbench 7, then a first telescopic rod 5 is started to extend, and the conductive block 6 is driven to be in contact with metal wires on two sides of the diode, then the conductive block 6 is used for electrifying the diode, if the placing direction of the diode is correct at the moment, current cannot flow into the conductive block 6 on the right side from the conductive block 6 on the left side, then a first electromagnet 10 attracts a magnetic rod 9 to move and drives a piston rod 8 to move for sucking, so that the diode is adsorbed above the workbench 7, then the fixation of the diode is completed, if the placing direction of the diode is incorrect, current flows into the conductive block 6 on the right side from the conductive block 6 on the left side through the diode, then the current is gradually increased, the second electromagnet 15 is enabled to increase magnetism and push a push plate 14 to move upwards, so that the push plate 14 drives a moving rod 13 to move upwards, and drives a control rod 16 to be in contact with a control switch 17, make the inside current direction of conducting block 6 change, thereby need not to move the diode, and backward continue to increase voltage to the diode, second bull stick 12 rotates along with carriage release lever 13 simultaneously, and drive first electro-magnet 10 and rotate and change the magnetism direction, make electro-magnet 10 continue to attract magnetic pole 9 to remove, make the diode adsorb on workstation 7, then puncture voltage detects, thereby realized that the positive and negative pole that need not to distinguish the diode is automatic to be fixed and detect, the detection efficiency of diode has been improved.
Meanwhile, when the voltage is increased to a certain value, the air bag 2 is inflated and expanded and drives the moving plate 3 to move upwards, so that the first rotating rod 4 rotates, the first telescopic rod 5 is reset, the first electromagnet 10 is powered off, the adsorption effect on the diode is removed, at the moment, if the diode is not broken down, the driving motor in the oscillating rod 26 cannot be started, at the same time, the third electromagnet 25 on the left side is powered on with the oscillating rod 26 through the contacts 27 on the upper side and the lower side, then the magnetic attraction is generated to move the sliding rod 24 on the left side, so that the stabilizing rod 22 on the left side moves downwards, the workbench 7 inclines leftwards, the diode slides into the good pipe 18 to be recovered, when the diode is broken down, at the moment, the current flows into the conductive block 6 on the right side through the diode, so that the driving motor in the oscillating rod 26 is started, and drives the oscillating rod 26 to rotate to be contacted with the contacts 27 on the left side and the right side, make the third electro-magnet 25 of right side attract slide bar 24 to remove to stabilizer bar 22 on right side moves down, makes the workstation slope right, and then the diode after puncturing enters into waste pipe 19 and is retrieved, thereby has realized automatic sorting to the diode, makes damaged diode can be intact to be retrieved and restore, has avoided the wasting of resources.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A semiconductor breakdown voltage detection device comprises a machine body (1), and is characterized in that: an air bag (2) is fixedly mounted above the machine body (1), a movable plate (3) is movably mounted above the air bag (2), a first rotating rod (4) is respectively rotatably mounted on two sides of the movable plate (3), a first telescopic rod (5) is fixedly mounted at one end, far away from the movable plate (3), of the first rotating rod (4), a conductive block (6) is fixedly connected to the lower end of the first telescopic rod (5), a workbench (7) is rotatably mounted below the conductive block (6), a piston rod (8) is respectively and movably mounted on two sides inside the workbench (7), a magnetic rod (9) is movably mounted at one end of the piston rod (8), a first electromagnet (10) is rotatably mounted on one side, far away from the piston rod (8), of the first electromagnet (10) and is movably mounted on one side, far away from the magnetic rod (9), a limiting rod (11), a second rotating rod (12) is rotatably mounted above the limiting rod (11), a moving rod (13) is movably mounted above one end, far away from the limiting rod (11), of the second rotating rod (12), a push plate (14) is movably mounted on one side, far away from the conducting block (6), of the moving rod (13), the push plate (14) is fixedly connected with the moving rod (13), a second electromagnet (15) is fixedly mounted below the push plate (14), a control rod (16) is rotatably mounted at the upper end of the moving rod (13), a control switch (17) is fixedly mounted above the control rod (16), a good pipe (18) is fixedly mounted below the left side of the workbench (7), a waste pipe (19) is fixedly mounted below the right side of the workbench (7), a support frame (20) is fixedly mounted below the workbench (7), the support frame (20) is rotatably connected with the workbench (7), two sides of the support frame (20) are respectively and fixedly connected with a second telescopic rod (21), and a stabilizer rod (22) is movably mounted outside the second telescopic rod (21), stabilizer bar (22) and workstation (7) fixed connection, slide bar (24) are installed to the below of stabilizer bar (22), one side slidable mounting that slide bar (24) kept away from stabilizer bar (22) has stabilizer bar (23), the inboard fixed mounting of stabilizer bar (23) has third electro-magnet (25), swing rod (26) are installed in the inboard rotation of third electro-magnet (25), the outside fixed mounting of swing rod (26) has contact (27), the both sides fixed mounting of swing rod (26) has extension spring (28).
2. A semiconductor breakdown voltage detection apparatus according to claim 1, wherein: the piston rod (8) is rotationally connected with the magnetic rod (9).
3. A semiconductor breakdown voltage detection apparatus according to claim 1, wherein: and two sides of the first electromagnet (10) are provided with limiting grooves corresponding to the limiting rods (11).
4. A semiconductor breakdown voltage detection apparatus according to claim 1, wherein: the magnetism generated by electrifying the second electromagnet (15) is the same as that of the push plate (14) on the opposite surface.
5. A semiconductor breakdown voltage detection apparatus according to claim 1, wherein: the good pipe (18) and the waste pipe (19) are not in the same plane with the magnetic rod (9).
6. A semiconductor breakdown voltage detection apparatus according to claim 1, wherein: the inclined angle of the lower end of the stabilizing rod (22) is the same as that of the outer end of the sliding rod (24).
7. A semiconductor breakdown voltage detection apparatus according to claim 1, wherein: the contact (27) is electrically connected with the third electromagnet (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110044008.8A CN112904168B (en) | 2021-01-13 | 2021-01-13 | Semiconductor breakdown voltage detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110044008.8A CN112904168B (en) | 2021-01-13 | 2021-01-13 | Semiconductor breakdown voltage detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112904168A CN112904168A (en) | 2021-06-04 |
| CN112904168B true CN112904168B (en) | 2021-10-29 |
Family
ID=76112918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110044008.8A Active CN112904168B (en) | 2021-01-13 | 2021-01-13 | Semiconductor breakdown voltage detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112904168B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113252964B (en) * | 2021-07-08 | 2021-10-29 | 山东科技职业学院 | Semiconductor lighting device voltage detection device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210950A (en) * | 2006-12-27 | 2008-07-02 | 鸿富锦精密工业（深圳）有限公司 | Electronic components voltage-resisting test apparatus and method |
| CN101592702A (en) * | 2008-05-30 | 2009-12-02 | 财团法人工业技术研究院 | The caution system of light emitting diode and method |
| CN103323764A (en) * | 2013-06-28 | 2013-09-25 | 北京大学 | Silicon PIN semiconductor detector leak current detecting device and detecting method thereof |
| CN108655018A (en) * | 2018-04-16 | 2018-10-16 | 江阴新基电子设备有限公司 | System and its test method are tested in semiconductor plastic package band high-voltage isulation |
| CN109387752A (en) * | 2018-09-25 | 2019-02-26 | 南方电网科学研究院有限责任公司 | SF (sulfur hexafluoride)6Method for calculating critical breakdown field intensity of gas under protrusion electrode structure |
| CN109669107A (en) * | 2018-11-23 | 2019-04-23 | 内蒙古电力（集团）有限责任公司内蒙古超高压供电局 | Simulate the device and its analogy method of shelf depreciation |
| CN110488174A (en) * | 2019-08-26 | 2019-11-22 | 上海禾赛光电科技有限公司 | The breakdown voltage of photodiode is tested |
| CN111352009A (en) * | 2020-04-20 | 2020-06-30 | 台州市椒江南屯电子有限公司 | Diode breakdown voltage detection equipment |
| CN111736049A (en) * | 2020-08-05 | 2020-10-02 | 广东电网有限责任公司 | Generator for simulating partial discharge signal |
| CN111983485A (en) * | 2020-08-25 | 2020-11-24 | 惠州亿纬集能有限公司 | Insulation testing device and insulation testing method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9239353B2 (en) * | 2013-06-20 | 2016-01-19 | Texas Instruments Incorporated | Testing of integrated circuits with external clearance requirements |
| US10355076B2 (en) * | 2017-10-31 | 2019-07-16 | Texas Instruments Incorporated | Low substrate leakage zener diode with modulated buried junction |
-
2021
- 2021-01-13 CN CN202110044008.8A patent/CN112904168B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210950A (en) * | 2006-12-27 | 2008-07-02 | 鸿富锦精密工业（深圳）有限公司 | Electronic components voltage-resisting test apparatus and method |
| CN101592702A (en) * | 2008-05-30 | 2009-12-02 | 财团法人工业技术研究院 | The caution system of light emitting diode and method |
| CN103323764A (en) * | 2013-06-28 | 2013-09-25 | 北京大学 | Silicon PIN semiconductor detector leak current detecting device and detecting method thereof |
| CN108655018A (en) * | 2018-04-16 | 2018-10-16 | 江阴新基电子设备有限公司 | System and its test method are tested in semiconductor plastic package band high-voltage isulation |
| CN109387752A (en) * | 2018-09-25 | 2019-02-26 | 南方电网科学研究院有限责任公司 | SF (sulfur hexafluoride)6Method for calculating critical breakdown field intensity of gas under protrusion electrode structure |
| CN109669107A (en) * | 2018-11-23 | 2019-04-23 | 内蒙古电力（集团）有限责任公司内蒙古超高压供电局 | Simulate the device and its analogy method of shelf depreciation |
| CN110488174A (en) * | 2019-08-26 | 2019-11-22 | 上海禾赛光电科技有限公司 | The breakdown voltage of photodiode is tested |
| CN111352009A (en) * | 2020-04-20 | 2020-06-30 | 台州市椒江南屯电子有限公司 | Diode breakdown voltage detection equipment |
| CN111736049A (en) * | 2020-08-05 | 2020-10-02 | 广东电网有限责任公司 | Generator for simulating partial discharge signal |
| CN111983485A (en) * | 2020-08-25 | 2020-11-24 | 惠州亿纬集能有限公司 | Insulation testing device and insulation testing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112904168A (en) | 2021-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112904168B (en) | Semiconductor breakdown voltage detection device | |
| CN111940341A (en) | Automatic light-emitting diode packaging detection device capable of automatically rejecting defective products | |
| CN105057937A (en) | Shell welding production device | |
| CN213794766U (en) | Mechanical hand grabbing type automatic resistance welding special machine | |
| CN115527904B (en) | Chip sorting machine | |
| CN108511669B (en) | Lug combination welding device and winding machine | |
| CN211072283U (en) | Laser cutting machine of easy material loading | |
| CN106141680A (en) | Pencil sharpener kludge | |
| CN105716971B (en) | Collect the metal welding position reliability detecting device and its application method of blanking | |
| CN2820410Y (en) | Electric spark wire cutting machine tool | |
| CN212652220U (en) | Automatic light-emitting diode packaging detection device capable of automatically rejecting defective products | |
| CN110816966B (en) | Feeding device and feeding method of electronic assembly | |
| CN116408272B (en) | Automatic welded pipe detector | |
| CN218548392U (en) | Automatic feeding and discharging conveying mechanism for wafer detection | |
| CN115097294B (en) | Detection apparatus for chip resistant extreme value with earth leakage detection protect function | |
| CN108917817A (en) | A kind of automatic conductive film test machine | |
| CN114054919A (en) | Electronic material spot welding device with antistatic performance | |
| CN203536353U (en) | Automatic bulb feeding mechanism used for aging machine | |
| CN111348238A (en) | Inductor carrying device and method for inductor detection packaging equipment | |
| CN218099459U (en) | Lamp driving board online test equipment | |
| CN218906626U (en) | Be used for copper frame brush tin cream mechanism | |
| CN211802463U (en) | Electronic device sorting device | |
| JP3604037B2 (en) | Resistance welding apparatus and method for hermetic sealing | |
| CN220120558U (en) | Alloy resistance wire toughness detection device | |
| CN215203560U (en) | Nail hole detector for retreaded tire |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |