METHOD FOR INFORMATION TRANSFER IN A VOLTAGE-DRIVEN INTELLIGENT CHARACTERIZATION BENCH FOR SEMICONDUCTOR

• US 20120179943A1
• Filed: 01/06/2011
• Published: 07/12/2012
• Est. Priority Date: 01/06/2011
• Status: Abandoned Application

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Montrose, Charles J., Wang, Ping-Chuan
• Application Number:
  US12/985,459
• Publication Number:
  US 20120179943A1
• Time in Patent Office: Days
• US Class Current: 714/721
• CPC Class Codes: G06F 11/2273 Test methods
• CPC Class Codes: G11C 2029/5602 Interface to device under test
• CPC Class Codes: G11C 29/006 at wafer scale level, i.e. wafer scale integration [WSI]
• CPC Class Codes: G11C 29/06 Acceleration testing
• CPC Class Codes: G11C 29/56 External testing equipment for static stores, e.g. automatic test equipment [ATE]; Interfaces therefor

Abstract

A method for transmitting data from test device to a storage device via a parallel bus. The methods comprising the steps of setting a flag to indicate that data is available, reading the data, setting a flag to indicate the data was read. In addition test parameters are sent to the test device from the storage device, the method comprises the steps of checking to see if a test device is ready to receive data, transferring the test parameters, identifying the next channel to update.

Claims

1. A method for transmitting test parameters to a plurality of test device comprising the steps of:

identifying a test device to provide test parameters;

checking to see if the test device is ready to receive the test parameters;

sending the test parameters;

providing a flag when the data is loaded.

2. The method of claim 1, further comprising determining if the end of record has been reached, if the end of the record has not been reached, repeating checking sending and providing.

3. The method of claim 2, wherein if the end of record has been reached, identifying the next test device to provide test parameters to.

4. The method of claim 3, further comprising the step of determining if the storage device has test parameters for additional test devices.

5. A method for providing data from a plurality of test device to a storage device, comprising the steps of:

entering test data into a buffer;

setting a flag to indicate data is available; and

setting an interrupt to indicate the data has been read by a storage device.

6. The method of claim 5 further comprising the step of determining if the end of record has been sent, if the end of the record has been received disabling the interrupt.

7. The method of claim 6, wherein if the end of record has not been met, repeating the entering test data, setting a flag to indicate data is available.

8. A method for providing data from a plurality of test device to a storage device, comprising the steps of:

loading the test data into a buffer;

loading a unit of data into a transfer buffer;

setting a flag to indicate a unit of data is loaded into a buffer, and

determining if a storage device has set a flag to indicate it read the unit of data.

9. The method of claim 8, further comprising the step of determining if the end of record has been read, if not, loading the next unit of data into the transfer buffer.

10. The method of claim 9, if the end of the record has been met, return to test program.

11. A method for providing data from a plurality of driver channels to a storage device, comprising the steps of:

setting i to equal 1;

determining if i is greater that the number of DUTs being tested;

transferring data from the ith test device to the driver channel; and

incrementing i by one.

12. The method of claim 11 further comprising the step of determining if a flag indicating new data is available is set, if yes, then transferring that unit of data from the driver channel to the storage device.

13. The method of claim 12, further comprising the step of determining if the end of record has been reached, if so increment I by one.

14. If the method of claim 13 further comprising the step of determining if i is greater than the number of driver channels.