JPH0354487A - Package tester - Google Patents

Abstract

PURPOSE:To reduce the cost and the test time of a package tester by controlling a plurality of fixture control units by one system control unit and executing a test program by each fixture control unit itself. CONSTITUTION:When a package tester is actuated from outside, a system control unit 1 executes a test program. Based on the command of the system control unit 1, fixture control units 3 (3-1 to 3-4) generate test signals and fixture units 4 (4-1 and 4-2) apply the test signals to packages 6 (6-1 to 6-4) to be tested. The resultant signals of the test from the packages are judged via the fixture units 4. At this time, the system control unit 1 feeds the test program to the fixture control units 3 via a system bus 2 and the fixture control units 3 receive the test program via the bus 2 to execute the program.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a package testing device for testing the functionality and operation of a package (electronic circuit board, integrated circuit #1). <Prior Art> Package testing equipment is widely used to test the operation of electronic circuit boards, integrated circuits, etc. This package testing equipment generally consists of a fixture section, a fixture control section, and a system control section. The system control unit sequentially executes the test program and sequentially gives instructions to the fixture control. The fixture control section generates a test signal based on this instruction and applies it to the package via the fixture section. Then, the test result signal from the package in response to this test signal is received via the fixture section and sent to the system control section. This operation is used to test the operation of the package. (Problems to be Solved by the Invention) As described above, in conventional package testing equipment, the relatively expensive system control section has a one-to-one correspondence with the fixture control section, and the system control section performs all controls. I am doing it. Therefore, package testing equipment becomes expensive. Furthermore, since it takes a lot of time to exchange information between the system system tX1 section and the 7-fixture control section, it takes a lot of time to test the patch gauge. As described above, conventional package testing equipment had issues that needed to be resolved. The present invention has been made in view of the above circumstances, and its purpose is to provide a P/Y gauge testing device that is low in price and allows a short bar/y cage test time. (Means for Solving the Problems) In order to achieve the above object, the package testing device of the present invention includes a system control unit that executes a test program, and a system control unit that generates and generates test signals based on instructions from the system control unit. a fixture control unit that determines a test result signal; and a fixture control unit that adds a test result signal output by the fixture control unit to the package when the package is attached, and extracts the test result signal from the package to control the fixture control unit. In the package testing device, one system control section and a plurality of fixture control sections are connected to a system bus, and the system control section executes the test program via the system bus. It has a configuration for sending the test program to the fixture control section, and the fixture control section receives the test program via the system bus and executes the test program. (Example) Next, an example of the present invention will be described in detail with reference to the drawings. Figure 1 is a structural diagram of one embodiment of the present invention. In the figure, 1 is a system control unit, 2 is an IEEE=488 standard bus (referred to as GP IB bus), and 3-1 to 3-4.
is a fixture control section, 4-1 to 4-2 are fixture sections, 5-1 to 5-4 are printers, 6-1 to 6-4 are packages under test (referred to as UUT), and 7 is a control box. be. Device addresses are predetermined for each of the system control section 1 and fixture control sections 3-1 to 3-4 based on the IEEE-488 standard. next,
The operation when testing a package in the embodiment shown in Figure 1 will be explained. When the package testing device is started from the outside, first, the system control section 1 starts operating. The system control unit 1 receives the device address indicating the fixture control unit 3-1 and the test (
test) program to GPIB bus 2. Then, only the fixture controller specified by this device address receives this test program. In this case, only the fixture control section 3-1 receives this test program. The system control section 1 performs such operations on the fixture control sections 3-2 to 3-4. Therefore, the test programs corresponding to the packages under test 6-1 to 6-4 are stored in the fixture control units 3-1 to 3-4. When these operations are completed, the control box 7 becomes enabled (usable). After confirming the enable state, the operator sets the number of packages to be tested 6-1 to 6-4 to the fixture control units 3-1 to 3-4 via the control box 7, respectively. When such processing is completed, the system control unit 1 goes into an offline state. When the operator presses the start switch (not shown) of the control box 7, the fixture control section 3
-1 to 3-4 sequentially execute internally stored test programs to generate test signals. Then, this test signal is applied to the packages under test 6-1 to 6-4 via the fixture section 4-1, 4-2, and test result signals from the packages under test 6-1 to 6-4 in response to this test signal are the fixture parts 4-1, . Judgment is made through 1-2.
In this way, the packages under test 6-1 to 6-4 are tested. When the test is finished, the fixture control section 3-1~
3-4 displays the test results on the control box 7 and outputs them to the printers 5-1 to 5-4. (Effects of the Invention) As explained above, in the package testing apparatus of the present invention, one system control section controls a plurality of fixture control sections. In addition, each fixture control unit executes the test program itself. Therefore, the cost of the package testing equipment can be reduced and the package testing time can be shortened.

[Brief explanation of drawings]

Figure 1 is a block diagram of one embodiment of the present invention. 1... System control unit, 2... GPIB bus, 3-1 to 3-4
... Fixture control section, 4-1 to 4-2... Fixture section, 5-1 to 5-4... Printer, 6-1 to
6-4...Test package, 7...Control box.

Claims (1)

[Scope of Claims] A system control unit that executes a test program, a fixture control unit that generates a test signal and determines a test result signal based on instructions from the system control unit, and a fixture control unit to which a package is attached. In a package testing apparatus, a fixture section includes a fixture section that applies a test result signal outputted by a section to the package, and a fixture section that extracts the test result signal from the package and applies it to the fixture control section. A system control unit and a plurality of fixture control units are connected, the system control unit is configured to send the test program to the fixture control unit via the system bus, and the fixture control unit is configured to send the test program to the fixture control unit via the system bus. A package testing device characterized in that it receives the test program via a bus and executes the test program.