Search

CN-224216758-U - Micro coaxial radio frequency probe card

CN224216758UCN 224216758 UCN224216758 UCN 224216758UCN-224216758-U

Abstract

The utility model relates to a micro coaxial radio frequency probe card, which belongs to the technical field of probe cards and comprises a substrate main body, wherein the top and the bottom of the substrate main body are provided with fixed protection mechanisms, and the fixed protection mechanisms comprise fixed brackets fixedly arranged at the top of the substrate main body. This little coaxial radio frequency probe card, the fixed bolster passes through the firm coaxial radio frequency connector of fixed slot, the radio frequency probe body is located coaxial radio frequency connector top, its convex top does benefit to the contact device that awaits measuring, ensure that the signal is accurate to be passed in, protection copper pipe parcel coaxial radio frequency connector prevents that the signal from leaking and resisting outside electromagnetic interference, ensure signal integrity, the locating piece ensures that coaxial radio frequency connector position is accurate, prevent the displacement, the earth connection, provide the earth screen for the radio frequency probe, reduce external electromagnetic interference, guarantee signal transmission stability, the radio frequency probe body contacts the device that awaits measuring during the test, the signal is transmitted through coaxial radio frequency connector, fixed protection mechanism guarantee job stabilization and test accuracy.

Inventors

  • XU XINGJUAN

Assignees

  • 苏州德圣誉电子有限公司

Dates

Publication Date
20260508
Application Date
20250515

Claims (6)

  1. 1. The micro coaxial radio frequency probe card comprises a substrate main body (1) and is characterized in that fixed protection mechanisms are arranged at the top and the bottom of the substrate main body (1); The fixed protection mechanism comprises a fixed support (2) fixedly arranged at the top of a substrate main body (1), a coaxial radio frequency connector (3) is arranged in the fixed support (2), a radio frequency probe body (4) is arranged at the top of the coaxial radio frequency connector (3), a protection copper pipe (5) is fixedly connected to the outer side of the coaxial radio frequency connector (3), and a positioning block (6) fixedly connected with the fixed support (2) is fixedly arranged at the bottom of the coaxial radio frequency connector (3); The bottom swing joint of base plate main part (1) has a bottom supporting seat (7), the inside threaded connection of bottom supporting seat (7) has stop bolt (8) with base plate main part (1) threaded connection, coaxial radio frequency connector (3) bottom is provided with ground connection pipe (9) with bottom supporting seat (7) swing joint.
  2. 2. The micro coaxial radio frequency probe card of claim 1, wherein the inner bottom wall of the fixing bracket (2) is provided with a fixing groove, and the coaxial radio frequency connector (3) is spliced with the fixing bracket (2) through the fixing groove.
  3. 3. The micro coaxial radio frequency probe card of claim 1, wherein the positioning block (6) is an epoxy resin block, the positioning block (6) surrounds the outer side of the coaxial radio frequency connector (3) for one circle, and the positioning block (6) is tightly attached to the coaxial radio frequency connector (3) and the fixing support (2).
  4. 4. The micro coaxial radio frequency probe card according to claim 1, wherein the protective copper pipe (5) is a polytetrafluoroethylene pipe, and the top end of the radio frequency probe body (4) is arc-shaped.
  5. 5. The micro coaxial radio frequency probe card of claim 1, wherein a pipe groove is formed in the bottom supporting seat (7), the grounding pipe (9) is movably connected with the bottom supporting seat (7) through the pipe groove, and the grounding pipe (9) is a metal beryllium copper pipe.
  6. 6. The micro coaxial radio frequency probe card of claim 1, wherein the substrate main body (1) and the bottom support seat (7) are internally provided with thread grooves which are matched, and the limit bolt (8) is in threaded connection with the bottom support seat (7) through the substrate main body (1).

Description

Micro coaxial radio frequency probe card Technical Field The utility model relates to the technical field of probe cards, in particular to a micro coaxial radio frequency probe card. Background The radio frequency probe card is an extremely critical tool in the field of radio frequency testing, is mainly used for carrying out accurate measurement and analysis on radio frequency signals in the links of product research and development, production testing and fault diagnosis in the fields of communication, semiconductors, aerospace and the like, and the radio frequency technology is widely applied in the fields of communication, semiconductors, aerospace and the like, the product research and development in the fields is important for the accurate measurement and analysis of the radio frequency signals, and the micro coaxial radio frequency probe card is used as a key tool for radio frequency testing. The existing radio frequency test probe card is relatively simple in structure, adopts a single material and a relatively simple fixing mode, is very easy to mix in test signals due to the lack of a good shielding design, so that test result errors are relatively large, real radio frequency performance of a device to be tested is difficult to accurately reflect, the device to be tested and complex test requirements of different specifications are difficult to adapt, the position and angle of a probe cannot be accurately adjusted by the existing probe card, the test difficulty is increased, and chip pins are possibly damaged due to poor contact, so that another technical scheme is provided for solving the problem. Disclosure of utility model Aiming at the defects of the prior art, the utility model provides a micro coaxial radio frequency probe card which has the advantages of good fixing and protecting effects, increased signal transmission, side view and the like, solves the problems that the structure of the conventional radio frequency test probe card is relatively simple, single material and relatively simple fixing mode are adopted, and because of the lack of good shielding design, external electromagnetic interference is extremely easy to mix into test signals, the error of test results is large, the actual radio frequency performance of a device to be tested is difficult to accurately reflect, the device to be tested of different specifications and complex test requirements are difficult to adapt, the position and angle of a probe cannot be accurately adjusted, and the test difficulty is increased. In order to achieve the purpose, the technical scheme is that the micro coaxial radio frequency probe card comprises a substrate main body, wherein the top and the bottom of the substrate main body are provided with fixed protection mechanisms; The fixed protection mechanism comprises a fixed bracket fixedly arranged at the top of the substrate main body, a coaxial radio frequency connector is arranged in the fixed bracket, a radio frequency probe body is arranged at the top of the coaxial radio frequency connector, a protection copper pipe is fixedly connected to the outer side of the coaxial radio frequency connector, and a positioning block fixedly connected with the fixed bracket is fixedly arranged at the bottom of the coaxial radio frequency connector; the bottom swing joint of base plate main part has the base supporting seat, the inside threaded connection of base supporting seat has the stop bolt with base plate main part threaded connection, coaxial radio frequency connector bottom is provided with the earthing tube with base supporting seat swing joint. Further, a fixing groove is formed in the inner bottom wall of the fixing support, and the coaxial radio frequency connector is spliced with the fixing support through the fixing groove. Further, the locating block is an epoxy resin block, the locating block surrounds the outer side of the coaxial radio frequency connector for one circle, and the locating block is tightly attached to the coaxial radio frequency connector and the fixing support. Further, the protection copper pipe is a polytetrafluoroethylene pipe, and the top end of the radiofrequency probe body is arc-shaped. Further, the inside of the bottom support seat is provided with a pipe groove, the grounding pipe is movably connected with the bottom support seat through the pipe groove, and the grounding pipe is a metal beryllium copper pipe. Further, the inside of base plate main part and the inside of base supporting seat are offered the screw thread groove of looks adaptation, stop bolt passes through base plate main part and base supporting seat threaded connection. Compared with the prior art, the technical scheme of the application has the following beneficial effects: This little coaxial radio frequency probe card, through the fixed protection machanism that sets up, the fixed bolster passes through the firm coaxial radio frequency connector of fixed slot, the radio frequency probe bo