CN204374239U - Test machine signal wire switching device - Google Patents

Abstract

The utility model relates to a kind of test machine signal wire switching device, comprise measuring head (1), RF signal wire (4) and the test motherboard (2) be installed on successively from bottom to top on measuring head (1) and test daughter board (3), measuring head (1) surface peripheral described test motherboard (2) offers groove (5), it is characterized in that being stamped card extender (6) in described groove (5) top, signal wire connector (7) is fixed with in described card extender (6) upper interting, the two ends of described RF signal wire are connected with the board of test machine inside with test DUT board (8) respectively, middle connected by connector (7).The utility model expands the spacing between RF signal wire, improves dismounting and changes engine efficiency, reduces spoilage and the misconnection rate of RF signal wire simultaneously, improves test accuracy rate.

Description

Testing machine signal line adapter

technical field

The invention relates to a tester signal line switching device, which is used for signal detection of semiconductor packaging structures. It belongs to the technical field of semiconductor packaging.

Background technique

The RF signal line in the test head of the existing T2000 testing machine is finally led to the test DUT board through the test motherboard and the test sub-board, see Figure 1, that is, the path is divided into three sections: "test head --- test motherboard", "Test motherboard --- test daughter board", "test daughter board --- test DUT board".

The disadvantages of this routing method are:

1. The layout of the test sub-board is too compact, and the distance between the RF signal lines is too small, which reduces the efficiency of disassembly and assembly.

2. The space under the test sub-board is too small, and the RF signal line will be damaged due to repeated bending due to space constraints.

3. When modifying the machine, the motherboard must be removed first, and then the RF lines on the daughter board must be rearranged according to production requirements, which reduces the efficiency of machine modification.

4. There is no clear identification of the name of the RF signal line on the test sub-board (there are 32 RF signal lines leading out of the machine), which will lead to wrong wiring.

Contents of the invention

The purpose of the present invention is to overcome the above-mentioned deficiencies, provide a tester signal line switching device, expand the distance between RF signal lines, improve the efficiency of disassembly and modification, and reduce the damage rate and misconnection rate of RF signal lines at the same time, Improve test accuracy.

The purpose of the present invention is achieved in this way: a test machine signal line adapter device, including test head, RF signal line and test motherboard and test sub-board installed on the test head in sequence from bottom to top, in the test The surface of the test head on the periphery of the motherboard is provided with a groove, which is characterized in that an adapter plate is covered above the groove, and a signal line connector is inserted and fixed on the adapter plate, and the two ends of the RF signal line They are respectively connected to the test DUT board and the board card inside the tester, and are connected through a connector in the middle.

The RF signal line is divided into two sections, one end of one section is connected to the board inside the testing machine, the other end is connected to the lower end of the connector, and one end of the other section of the RF signal line is connected to the test DUT board, and the other end is connected to the connector connected to the upper end.

Compared with the prior art, the present invention has the following beneficial effects:

1. Through the self-made adapter board, the layout is generous, and the RF signal line is easy to disassemble and operate;

2. Since the RF signal line does not pass through the inside of the test motherboard, it is not limited by space and is not squeezed, so the RF signal line is not easy to be damaged;

3. Since there is no need to disassemble and assemble the motherboard when modifying the machine, the efficiency of the machine modification is improved;

4. The number of wiring is reduced, and the probability of wrong wiring is greatly reduced.

Description of drawings

FIG. 1 is a schematic diagram of a transfer structure of a traditional RF signal line.

Fig. 2 is a structural schematic diagram of the utility model.

FIG. 3 is an enlarged schematic view of point A in FIG. 2 .

in:

test head 1

Test motherboard 2

Test daughter board 3

RF signal line 4

Groove 5

Adapter board 6

Connector 7

Test DUT board8.

Detailed ways

Referring to Fig. 2-Fig. 3, the present invention relates to a kind of testing machine signal line conversion device, comprises test head 1, test motherboard 2, test sub-board 3 and RF signal line 4, and described test motherboard 2 is installed on test head 1 upper surface, the test sub-board 3 is installed on the upper surface of the test motherboard 2, a groove 5 is opened on the surface of the test head 1 on the periphery of the test motherboard 2, and an adapter plate is covered above the groove 5 6. The adapter plate 6 is fixed to the test head 1 by fixing screws, and a signal line connector 7 is interspersed and fixed on the adapter plate 6. The RF signal line 4 is divided into two sections, and one end of one section It is connected with the board inside the testing machine, the other end is connected with the lower end of the connector 7, one end of another RF signal line 4 is connected with the test DUT board 8, and the other end is connected with the upper end of the connector 7, so that the RF signal line is led out to The lead-out path of the test DUT board is reduced to two sections, reducing the damage of the RF signal line due to the complicated path, and adding a clear name to each RF signal line.

The routing method of connecting the RF signal line with this adapter device:

1. Remove the original baffles at the grooves on both sides of the upper surface of the test head.

2. Remove the 32 RF signal lines inside the test head from the test motherboard and transfer them to the groove.

3. Connect the 32 RF signal lines to the 32 connectors on the back of the self-made adapter board. The names of the signal lines correspond to the names of the RF ports on the adapter board.

4. Use fixing screws to fix the self-made adapter plate in the groove.

5. Use the RF signal line to connect the "test DUT board" with the connector on the front of the self-made adapter board.

Claims (2)

1. A testing machine signal line conversion device, including a test head (1), an RF signal line (4), and a test motherboard (2) and a test sub-board that are sequentially installed on the test head (1) from bottom to top (3), a groove (5) is opened on the surface of the test head (1) on the periphery of the test motherboard (2), which is characterized in that an adapter plate (6) is covered above the groove (5), A signal line connector (7) is interspersed and fixed on the adapter board (6), and the two ends of the RF signal line are respectively connected to the test DUT board (8) and the board card inside the testing machine, and the connector is passed in the middle (7) connected. 2. A tester signal line adapter device according to claim 1, characterized in that the RF signal line (4) is divided into two sections, one end of which is connected to the board inside the tester, and the other end It is connected with the lower end of the connector (7), one end of another section of RF signal line (4) is connected with the test DUT board (8), and the other end is connected with the upper end of the connector (7).