CN211122941U

CN211122941U - Hot plug type aging adapter plate

Info

Publication number: CN211122941U
Application number: CN201921582624.3U
Authority: CN
Inventors: 孙崇钧
Original assignee: 709th Research Institute of CSIC
Current assignee: 709th Research Institute of CSIC
Priority date: 2019-09-23
Filing date: 2019-09-23
Publication date: 2020-07-28
Anticipated expiration: 2029-09-23

Abstract

The utility model relates to a microelectronics measurement technical field provides a hot plug formula adapter plate of smelting always, including hot plug protection circuit, hot plug protection circuit is provided with control end, power end, earthing terminal, input, output, input end connector includes three interface: differential interface, single-end interface, and power interface. The hot plug type burn-in adapter plate is used as an access mode of an integrated circuit burn-in test system and a calibration device, is simple in structure and strong in practicability, has an expansibility function in an interface form, can realize hot plug of the integrated circuit burn-in adapter plate of the integrated circuit burn-in system within a certain range, and guarantees high efficiency and reliability of a calibration process of the integrated circuit burn-in test system.

Description

Hot plug type aging adapter plate

Technical Field

The utility model belongs to the technical field of the microelectronic measurement, concretely relates to hot plug formula adapter plate of smelting always.

Background

The integrated circuit aging test system is used for detecting an excitation signal and an output signal of the integrated circuit in an aging process to realize dynamic aging. Through the aged semiconductor device, potential quality defects in the integrated circuit can be quickly exposed, and early failure integrated circuits can be eliminated.

The tracing and transferring requirements of the integrated circuit quantity value make the integrated circuit aging test system be measured, at present, the common method is to lead out the signal unit in each test area of the integrated circuit aging test system through an aging adapter plate and calibrate the signal quantity value, so as to realize the calibration of the integrated circuit aging test system. This kind of adapter plate of smelting always adopts the adapter plate of the test of integrated circuit smelting test system from the area or customization, the interface form is single, with every experimental district one-to-one, and can't realize the hot plug, and be not applicable to the calibration of integrated circuit smelting test system always, this is because the calibration process needs to switch over to different experimental districts through a smelting adapter plate always, if carry out the hot plug, surge voltage/electric current that switching power supply and electronic load and digital multimeter suddenly disconnection produced easily causes the damage to integrated circuit smelting test system or calibrating device's circuit. Therefore, a hot-plug type burn-in adapter plate which can be suitable for calibrating an integrated circuit burn-in test system is urgently needed.

SUMMERY OF THE UTILITY MODEL

To this kind of condition, the utility model provides a hot plug formula adapter plate of smelting always, this hot plug formula adapter plate burn always the test resource of integrated circuit test system end all according to the characteristic mapping of adapter plate on fixed position, by the calibration object through with the adapter plate characteristic mapping module fast the butt joint realized the establishment of calibration link.

In order to achieve the above purpose, the utility model provides a technical scheme as follows: the utility model provides a hot plug formula adapter plate of smelting always, includes hot plug protection circuit, its characterized in that, hot plug protection circuit is provided with control end, power end, earthing terminal, input, output, the power end is connected with the control end electricity, the control end links to each other with the earthing terminal, the input links to each other with the signal input part of control end, the control end is equipped with output signal's output, input end connector includes three interface: differential interface, single-end interface, and power interface.

The utility model discloses the beneficial effect who has does:

the utility model provides a hot plug formula adapter plate of smelting always makes the hot plug of the integrated circuit adapter plate of smelting always possible in the test system calibration process of smelting always, has ensured the calibration of the full test area of integrated circuit test system of smelting always, has ensured high efficiency, the reliability of integrated circuit test system calibration always. The hot-plug type aging adapter plate is simple in structure and strong in practicability, an interface form has an expansibility function, the hot-plug type aging adapter plate can meet the requirements of the research on the calibration technology of the conventional integrated circuit aging test system, the development of a calibration device, the measurement technical service and even the establishment of a measurement standard, and has wide application prospect and remarkable social and economic benefits.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

in the figure: the hot plug protection circuit comprises a hot plug protection circuit 1, a control terminal 2, a power supply terminal 3, a grounding terminal 4, an input terminal 5, a differential interface 5.1, a single-ended interface 5.2, a power supply interface 5.3 and an output terminal 6.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.

As shown in the figure, the embodiment of the utility model provides a for realize above-mentioned mesh, the utility model provides a technical scheme as follows: the utility model provides a hot plug formula adapter plate of smelting always, includes hot plug protection circuit 1, its characterized in that, hot plug protection circuit 1 is provided with control end 2, power end 3, earthing terminal 4, input 5, output 6, power end 3 is connected with 2 electricity of control end, control end 2 links to each other with earthing terminal 4, input 5 links to each other with control end 2's signal input part, control end 2 is equipped with output signal's

output

6, 5 connectors of input include three interface: differential interface 5.1, single-ended interface 5.2, and power supply interface 5.3.

The device comprises the following specific use steps:

the structure of the hot-plug type aging adapter plate is shown in figure 1 and comprises an input end, an output end and a group of hot-plug protection circuits.

The input end is connected with all signal units in a test area of an integrated circuit aging test system, different connectors are selected according to a calibration object, the connector comprises a differential interface (mainly connected into a high-speed signal), a single-ended interface (mainly connected into channel voltage or current) and a power supply interface (mainly connected into a primary/secondary switch power supply signal), structurally and completely separates a high-current test needle and a signal test needle to avoid signal mutual interference, the power supply interface is formed by selecting a high-current test needle with single needle capable of passing 50A current, the signal test needle is a CMD connector produced by Hypertronics, 4 rows of contacts are arranged in a connector main body, the central interval of each row of contacts is 1.9mm, and the interval between rows of contacts is 1.9 mm.

The output end is connected with the signal measuring end of the calibration device, alternating current and direct current signals are isolated in the PCB wiring process according to the signal types, strong and weak signals are isolated, and crosstalk between the signals is eliminated.

The hot plug protection circuit comprises a Vcc terminal, a Gnd terminal and a control terminal. The Vcc end provides power supply for the circuit through the power management chip; the Gnd terminal is grounded in a single point mode, and a ground loop is eliminated; the control end is used for defining the undervoltage protection voltage and the overvoltage protection voltage of the hot plug protection circuit by inputting a group of digital signals, the hot plug protection circuit adopts a single-chip integrated circuit, the reliability of the circuit in the hot plug process is improved, the hot plug control adopts TPS249X series positive high-voltage hot plug controllers produced by TI, a 9-80V positive pressure system is supported, and the hot plug protection circuit is suitable for protecting a positive high-voltage distributed power supply system.

During operation, the input end is connected with all signal units in the test area of the integrated circuit aging test system, the output end is connected with the signal measuring end of the calibration device, and the internal circuit pin is connected with the signal control end of the calibration device. The input end can select different connectors according to a calibration object, wherein the connectors comprise a differential interface, a single-end interface or a power supply interface, the connectors structurally and completely separate a signal testing pin and a large-current testing pin, and the signal testing pin is mainly responsible for measuring voltage/current and ensuring the accuracy of voltage/current acquisition; the heavy current test needle is mainly responsible for measuring various switching power supply parameters in the aging test system and ensures sufficient power supply load capacity. The calibration device supplies power to the internal circuit of the hot-plug aging adapter plate through the signal control end, defines the undervoltage/overvoltage protection voltage, prevents the voltage of the input end from being greatly reduced in a short time during hot plug, and plays a role in protecting the measurement loop.

Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the following descriptions are only provided for illustrating the technical solutions of the present invention and not for limiting the same: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a hot plug formula adapter plate of smelting always, includes hot plug protection circuit (1), its characterized in that, hot plug protection circuit (1) is provided with control end (2), power end (3), earthing terminal (4), input (5), output (6), power end (3) are connected with control end (2) electricity, control end (2) link to each other with earthing terminal (4), input (5) link to each other with the signal input part of control end (2), control end (2) are equipped with output signal's output (6), input (5) connector includes three interface: a differential interface (5.1), a single-end interface (5.2) and a power supply interface (5.3).