Module-testing device

• US 20050119872A1
• Filed: 06/10/2003
• Published: 06/02/2005
• Est. Priority Date: 06/13/2002
• Status: Active Grant

• Current Assignee: Murata Manufacturing Co Limited
• Original Assignee: Murata Manufacturing Co Limited
• Inventors: Nakaya, Kazuyoshi
• Granted Patent: US 7,502,706 B2
• Time in Patent Office: Days
• US Class Current: 703/23
• CPC Class Codes: G01R 31/31905 Interface with the device under test [DUT], e.g. arrangements between the test head and the DUT, mechanical aspects, fixture
• CPC Class Codes: G01R 31/31926 Routing signals to or from the device under test [DUT], e.g. switch matrix, pin multiplexing

Abstract

A wiring pattern circuit includes part of wiring between a module control circuit and a module. Since the wiring pattern circuit includes a PLD, the wiring thereof can be variably configured in accordance with the specifications of the module control circuit and the module. The construction of the module control circuit can be therefore facilitated. In addition, since a printed wiring pattern does not have to be provided separately for the test of each of a plurality of different modules, the test period, the labor and the cost involved during the test can be decreased.

Claims

1. A module-testing device for testing a module, comprising:

at least one module control circuit including a first programmable logic device, said at least one module control circuit feeding a testing control signal to the module;

an I/O port for transmitting a signal to and receiving a signal from an external device;

a first wiring pattern circuit including a second programmable logic device, the first wiring pattern circuit including at least part of a wiring between said at least one module control circuit and the I/O port; and

a configuration circuit for constructing circuit configurations of said at least one module control circuit and the first wiring pattern circuit on the basis of input information.

2. A module-testing device according to claim 1, further comprising a second wiring pattern circuit including a third programmable logic device, wherein:

said at least one module control circuit includes at least two module control circuits;

the second wiring pattern circuit including at least part of a wiring between said at least two module control circuits; and

the configuration circuit constructs a circuit configuration of the second wiring pattern circuit on the basis of the input information.

3. A module-testing device according to claim 1, further comprising a test board having the at least one module control circuit, the I/O port and the configuration circuit thereon.

4. A module-testing device according to claim 1, further comprising a tester arranged to produce an input signal to the module based on a testing control signal fed from the at least one module control circuit via the I/O port.

5. A module-testing device according to claim 4, wherein the tester receives an output signal from the module and determines whether the output signal from the module is an appropriate response to the input signal to the module.

6. A module-testing device according to claim 4, wherein the tester includes a module.

7. A module-testing device according to claim 1, wherein the configuration circuit produces data for determining the features of each unit logic circuit in the first programmable logic device and the data produced by the configuration circuit is output to the first programmable logic device.

10. The module-testing device according to claim 1, wherein said at least one module control circuit includes a plurality of module control circuits arranged in a two-by-two matrix configuration.

11. The module-testing device according to claim 10, further comprising a plurality of said first wiring pattern circuits each being disposed between an adjacent pair of the plurality of module control circuits.

12. The module-testing device according to claim 10, wherein the first wiring pattern circuit is disposed between four of the plurality of module control circuits.

13. The module-testing device according to claim 1, further comprising an information processing apparatus arranged to obtain a circuit diagram of the at least one module control circuit and to provide a circuit configuration signal to the configuration circuit.

14. A module-testing device according to claim 3, wherein the at least one module control circuit and the configuration circuit are adjacent to the I/O port on the test board.

8. A test board for use with a module-testing device, the test board comprising:

a substrate;

a configuration circuit provided at one end of the substrate;

an I/O port provided at the other end of the substrate;

module control circuits arranged in a two-by-two matrix on the substrate between the configuration circuit and the I/O port;

a plurality of first wiring pattern circuits, at least two of the plurality of first wiring pattern circuits being provided between a respective one of the module control circuits and the I/O port; and

a plurality of second wiring pattern circuits sandwiched between two adjacent ones of the module control circuits.

9. The test board according to claim 8, wherein the plurality of second wiring pattern circuits each includes a part of the wiring between two of the module control circuits that are adjacent to each other.

15. A test board according to claim 8, wherein at least one of the plurality of second wiring patterns is disposed between four of the module control circuits.

16. A test board according to claim 8, wherein the module control circuits include programmable logic devices.

17. A test board according to claim 8, wherein the plurality of first wiring pattern circuits and the plurality of second wiring pattern circuits include programmable logic devices.

18. A module-testing device for testing a module, comprising:

at least one module control circuit feeding a testing control signal to the module;

an I/O port for transmitting a signal to and receiving a signal from an external device;

a wiring pattern circuit including a programmable logic device; and

a configuration circuit for constructing circuit configurations of said at least one module control circuit and the wiring pattern circuit on the basis of input information input via the I/O port.

19. A module-testing device according to claim 18, wherein the wiring pattern circuit includes at least part of a wiring between said at least one module control circuit and the I/O port.

20. A module-testing device according to claim 18, further comprising a test board having the at least one module control circuit, the I/O port and the configuration circuit thereon.