Pin Verification Device And Method

• US 20150054536A1
• Filed: 08/26/2013
• Published: 02/26/2015
• Est. Priority Date: 08/26/2013
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Rackley, Donald Jay
• Granted Patent: US 9,274,166 B2
• Time in Patent Office: Days
• US Class Current: 324/750.18
• CPC Class Codes: G01R 31/2887 involving moving the probe head or the IC under test; docking stations moving single probes G01R1/06705; moving individual probes in multiple probes G01R1/07392
• CPC Class Codes: G01R 31/31713 Input or output interfaces for test, e.g. test pins, buffers for scan test G01R31/318572
• CPC Class Codes: G01R 31/70 Testing of connections between components and printed circuit boards G01R31/68 takes precedence

Abstract

A device of one embodiment includes a sensor, an indicator electrically connected to the sensor, a first base portion including a plurality of first channels, a second base portion including a plurality of second channels and located between the first base portion and the sensor, and a plurality of pins. Each pin includes first and second ends, and each pin passes through a respective first channel and a respective second channel such that the first end extends beyond the first base portion away from the sensor and the second end extends beyond the second base portion toward the sensor. Each pin is adjustably disposed within the respective first and second channels such that each pin is operable to move along a longitudinal axis of the pin. Furthermore, the sensor is operable to determine whether all pins of the plurality of pins are positioned proximate to the sensor.

Claims

1. A device comprising:

a sensor;

an indicator electrically connected to the sensor;

a first base portion comprising a plurality of first channels;

a second base portion comprising a plurality of second channels, the second base portion located between the first base portion and the sensor; and

a plurality of pins, each pin comprising first and second ends, each pin passing through a respective first channel of the plurality of first channels and a respective second channel of the plurality of second channels such that the first end extends beyond the first base portion away from the sensor and the second end extends beyond the second base portion toward the sensor, each pin adjustably disposed within the respective first and second channels such that each pin is operable to move along a longitudinal axis of the pin;

wherein the sensor is operable to determine whether all pins of the plurality of pins are positioned proximate to the sensor.

2. The device of claim 1, wherein the indicator comprises a light operable to indicate whether all pins of the plurality of pins are positioned proximate to the sensor.

3. The device of claim 1, wherein:

the sensor comprises a circuit having a plurality of sensing regions, each pin of the plurality of pins associated with a respective sensing region located at a projection of the longitudinal axis of the pin onto the sensor; and

the sensor is configured to control a state of the indicator based on whether the second end of each pin is positioned proximate to the respective sensing region.

4. The device of claim 3, wherein each sensing region comprises a switch associated with a respective pin of the plurality of pins.

5. The device of claim 4, wherein each switch is connected in parallel and configured to:

remain closed when the respective pin is not positioned proximate to the switch; and

open when the respective pin is positioned proximate to the switch.

6. The device of claim 4, wherein each switch is connected in series and configured to:

remain open when the respective pin is not positioned proximate to the switch; and

close when the respective pin is positioned proximate to the switch.

7. The device of claim 1, wherein a location of each first channel within the first base portion is adjustable, and a location of each second channel within the second base portion is adjustable.

8. The device of claim 1, wherein determining whether all pins of the plurality of pins are positioned proximate to the sensor comprises changing a state of the indicator in response to all pins of the plurality of pins being positioned proximate to the sensor.

9. The device of claim 1, wherein determining whether all pins of the plurality of pins are positioned proximate to the sensor comprises changing a state of the indicator in response to one or more pins of the plurality of pins not being positioned proximate to the sensor.

10. The device of claim 1, wherein a distance between the sensor and the second base portion is adjustable.

11. The device of claim 1, wherein each pin of the plurality of pins has a width between 0.1 millimeter and 2 millimeters.

12. The device of claim 1, wherein the plurality of pins comprises two or more rows, each row comprising two or more pins.

13. The device of claim 1, further comprising a plurality of springs, each spring engaging a respective pin of the plurality of pins and operable to exert a force on the respective pin along the longitudinal axis of the pin away from the sensor.

14. A method of determining whether a plurality of component pins of a component coupled to a first side of a circuit board are inserted a sufficient depth into a plurality of holes of the circuit board, the method comprising:

positioning a device proximate to a second side of the circuit board, the second side opposite the first side, the device comprising;

a sensor;

an indicator electrically connected to the sensor;

a first base portion comprising a plurality of first channels;

a second base portion comprising a plurality of second channels, the second base portion located between the first base portion and the sensor; and

a plurality of pins, each pin comprising first and second ends, each pin passing through a respective first channel of the plurality of first channels and a respective second channel of the plurality of second channels such that the first end extends beyond the first base portion away from the sensor and the second end extends beyond the second base portion toward the sensor, each pin adjustably disposed within the respective first and second channels such that each pin is operable to move along a longitudinal axis of the pin;

wherein the sensor is operable to determine whether all pins of the plurality of pins are positioned proximate to the sensor, and wherein the device is positioned such that each pin of the plurality of pins is aligned with a respective hole of the plurality of holes;

inserting the plurality of pins into the respective holes such that one or more first ends of the plurality of pins contacts one or more component pins; and

determining whether the plurality of component pins are inserted a sufficient depth into the plurality of holes based on the state of the indicator.

15. The method of claim 14, wherein:

the sensor comprises a circuit having a plurality of sensing regions, each pin of the plurality of pins associated with a respective sensing region located at a projection of the longitudinal axis of the pin onto the sensor; and

the sensor is configured to control a state of the indicator based on whether the second end of each pin is positioned proximate to the respective sensing region.

16. The method of claim 15, wherein each sensing region comprises a switch associated with a respective pin of the plurality of pins, each switch connected in parallel and configured to:

remain closed when the respective pin is not positioned proximate to the switch; and

open when the respective pin is positioned proximate to the switch.

17. The method of claim 15, wherein each sensing region comprises a switch associated with a respective pin of the plurality of pins, each switch connected in series and configured to:

remain open when the respective pin is not positioned proximate to the switch; and

close when the respective pin is positioned proximate to the switch.

18. The method of claim 14, wherein determining whether all pins of the plurality of pins are positioned proximate to the sensor comprises changing a state of the indicator in response to all pins of the plurality of pins being positioned proximate to the sensor.

19. The method of claim 14, wherein determining whether all pins of the plurality of pins are positioned proximate to the sensor comprises changing a state of the indicator in response to one or more pins of the plurality of pins not being positioned proximate to the sensor.

20. A device comprising:

a housing;

a sensor situated within the housing;

an indicator electrically connected to the sensor;

a first base plate connected to a first end of the housing, the first base plate comprising a plurality of first channels;

a second base plate situated within the housing between the first base plate and the sensor, the second base plate comprising a plurality of second channels;

two or more rows of pins, each row comprising two or more pins, each pin comprising first and second ends, each pin passing through a respective first channel of the plurality of first channels and a respective second channel of the plurality of second channels such that the first end extends beyond the first base portion away from the sensor and the second end extends beyond the second base portion toward the sensor, each pin adjustably disposed within the respective first and second channels such that each pin is operable to move along a longitudinal axis of the pin; and

a plurality of springs, each spring engaging a respective pin of the plurality of pins and operable to exert a force on the respective pin along the longitudinal axis of the respective pin away from the sensor;

wherein the sensor is operable to determine whether all pins of the plurality of pins are positioned proximate to the sensor.