CN202216795U - Titanium-platinum-gold beam-type lead wire system for pressure sensor - Google Patents
Titanium-platinum-gold beam-type lead wire system for pressure sensor Download PDFInfo
- Publication number
- CN202216795U CN202216795U CN2011203218611U CN201120321861U CN202216795U CN 202216795 U CN202216795 U CN 202216795U CN 2011203218611 U CN2011203218611 U CN 2011203218611U CN 201120321861 U CN201120321861 U CN 201120321861U CN 202216795 U CN202216795 U CN 202216795U
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- China
- Prior art keywords
- platinum
- titanium
- gold
- lead wire
- wire system
- 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 - Lifetime
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Abstract
A titanium-platinum-gold beam-type lead wire system for a pressure sensor comprises four piezoresistors arranged on a Wheatstone bridge, wherein the two ends of each of the piezoresistors are connected with titanium alloy nodes arranged at four corners through gold-plated lead wires respectively; trumpet-shaped platinum connecting surfaces are arranged at the positions of two ends of each of the piezoresistors, which are connected with the gold-plated leads respectively; and the external wires of the titanium alloy nodes are connected with an external circuit. The titanium-platinum-gold beam-type lead wire system can reduce the contact resistance of metal and a resistor and prevent the electrical performance of the sensor under high temperature or high current density from degrading, thereby realizing the reliable connection of internal and external lead wires of a sensor chip and improving the high temperature reliability of the sensor.
Description
Technical field
The utility model relates to a kind of pressure sensor structure, specifically the pin configuration between the voltage dependent resistor (VDR) on the Wheatstone bridge of pressure transducer.
Background technology
The favour Stone circuit structure that pressure transducer adopts, the inner voltage dependent resistor (VDR) constant resistance material that adopts then through the lead-in wire bridge joint, and is drawn connection.Owing in the process of producing, resistance is difficult to accomplish that with contacting of metal lead wire zero-clearance is even, so just cause some contact point loose contact easily, also just therefore produces the problem of sensitivity easily, and serious situation can make the malfunctioning or damage of pressure transducer.And because the use of asking when long, contact point also is easy to generate aging phenomenon, also can cause the loose contact of contact point, and then causes pressure transducer malfunctioning or damage.Based on the problems referred to above, I have designed a kind of lead system that is connected steadiness that can improve voltage dependent resistor (VDR) and metal lead wire.
The utility model content
The purpose of the utility model provides a kind of pressure transducer titanium-platinum-Jin beam lead system, and the voltage dependent resistor (VDR) that solves pressure transducer is with the metal lead wire contact point is bad and pressure transducer that cause is malfunctioning or the problem of damage.
The purpose of the utility model is to realize through following technical scheme:
Pressure transducer titanium-platinum-Jin beam lead system; Comprise four voltage dependent resistor (VDR)s on the Wheatstone bridge; The two ends of voltage dependent resistor (VDR) are connected to four jiaos titanium alloy node respectively through gold plated lead; The position that is connected with gold plated lead at the two ends of voltage dependent resistor (VDR) is provided with flaring platinum joint face, and titanium alloy node outer lead connects external circuit.
Pressure transducer titanium-platinum that the utility model provides-Jin beam lead system; Can reduce the contact resistance of metal and resistance; Avoid degenerating, realize the reliable connection of outer lead in the sensor chip, improve the high temperature reliability of sensor at high temperature or high current density lower sensor electric property.
Description of drawings
According to accompanying drawing and embodiment the utility model is done further explain below.
Fig. 1 is the structural drawing of the described pressure transducer titanium-platinum of the utility model embodiment-Jin beam lead system.
Embodiment
As shown in Figure 1; The described pressure transducer titanium-platinum of the utility model-Jin beam lead system; Comprise four voltage dependent resistor (VDR)s 1 on the Wheatstone bridge; The two ends of voltage dependent resistor (VDR) 1 are connected to four jiaos titanium alloy node 3 respectively through gold plated lead 2, the position that is connected with gold plated lead 2 at the two ends of voltage dependent resistor (VDR) 1 is provided with flaring platinum joint face 4, and titanium alloy node 3 outer leads connect external circuit.
Pressure transducer titanium-platinum that the utility model provides-Jin beam lead system; Can reduce the contact resistance of metal and resistance; Avoid degenerating, realize the reliable connection of outer lead in the sensor chip, improve the high temperature reliability of sensor at high temperature or high current density lower sensor electric property.
Claims (1)
1. pressure transducer titanium-platinum-Jin beam lead system; It is characterized in that; Comprise four voltage dependent resistor (VDR)s on the Wheatstone bridge; The two ends of voltage dependent resistor (VDR) are connected to four jiaos titanium alloy node respectively through gold plated lead, the position that is connected with gold plated lead at the two ends of voltage dependent resistor (VDR) is provided with flaring platinum joint face, and titanium alloy node outer lead connects external circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203218611U CN202216795U (en) | 2011-08-31 | 2011-08-31 | Titanium-platinum-gold beam-type lead wire system for pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203218611U CN202216795U (en) | 2011-08-31 | 2011-08-31 | Titanium-platinum-gold beam-type lead wire system for pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202216795U true CN202216795U (en) | 2012-05-09 |
Family
ID=46016044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203218611U Expired - Lifetime CN202216795U (en) | 2011-08-31 | 2011-08-31 | Titanium-platinum-gold beam-type lead wire system for pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202216795U (en) |
-
2011
- 2011-08-31 CN CN2011203218611U patent/CN202216795U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120509 |