Patents by Inventor Donald Paul Richmond, II
Donald Paul Richmond, II has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7928754Abstract: A burn-in and electrical test system (20) includes a temperature controlled zone (22) and a cool zone (24) separated by a transition zone 25. The temperature controlled zone (22) is configured to receive a plurality of wafer cartridges (26) and connect the cartridges (26) to test electronics (28) and power electronics (30), which are mounted in the cool zone (24). Each of the wafer cartridges (26) contains a semiconductor wafer incorporating a plurality of integrated circuits. The test electronics (28) consists of a pattern generator PCB (100) and a signal driver and fault analysis PCB (102) connected together by a parallel bus (104). The pattern generator PCB (100) and the fault analysis PCB (102) are connected to a rigid signal probe PCB (104) in cartridge (26) to provide a straight through signal path.Type: GrantFiled: October 6, 2009Date of Patent: April 19, 2011Assignee: Aehr Test SystemsInventors: Donald Paul Richmond, II, John Dinh Hoang, Jerzy Lobacz
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Publication number: 20100176836Abstract: A burn-in and electrical test system (20) includes a temperature controlled zone (22) and a cool zone (24) separated by a transition zone 25. The temperature controlled zone (22) is configured to receive a plurality of wafer cartridges (26) and connect the cartridges (26) to test electronics (28) and power electronics (30), which are mounted in the cool zone (24). Each of the wafer cartridges (26) contains a semiconductor wafer incorporating a plurality of integrated circuits. The test electronics (28) consists of a pattern generator PCB (100) and a signal driver and fault analysis PCB (102) connected together by a parallel bus (104). The pattern generator PCB (100) and the fault analysis PCB (102) are connected to a rigid signal probe PCB (104) in cartridge (26) to provide a straight through signal path.Type: ApplicationFiled: October 6, 2009Publication date: July 15, 2010Inventors: Donald Paul Richmond, II, John Dinh Hoang, Jerzy Lobacz
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Patent number: 7619428Abstract: A burn-in and electrical test system (20) includes a temperature controlled zone (22) and a cool zone (24) separated by a transition zone 25. The temperature controlled zone (22) is configured to receive a plurality of wafer cartridges (26) and connect the cartridges (26) to test electronics (28) and power electronics (30), which are mounted in the cool zone (24). Each of the wafer cartridges (26) contains a semiconductor wafer incorporating a plurality of integrated circuits. The test electronics (28) consists of a pattern generator PCB (100) and a signal driver and fault analysis PCB (102) connected together by a parallel bus (104). The pattern generator PCB (100) and the fault analysis PCB (102) are connected to a rigid signal probe PCB (104) in cartridge (26) to provide a straight through signal path.Type: GrantFiled: November 21, 2003Date of Patent: November 17, 2009Assignee: Aehr Test SystemsInventors: Donald Paul Richmond, II, John Dinh Hoang, Jerzy Lobacz
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Patent number: 7541822Abstract: A cartridge (10) includes a chuck plate (12) for receiving a wafer (74) and a probe plate (14) for establishing electrical contact with the wafer. In use, a mechanical connecting device (90) locks the chuck plate and the probe plate fixed relative to one another to maintain alignment of the wafer and the probe plate. Preferably, electrical contact with the wafer is established using a probe card (50) that is movably mounted to the probe plate by means of a plurality of leaf springs (52.) The mechanical connecting device is preferably a kinematic coupling including a male connector (94) and first and second opposed jaws (122, 124.) Each of the jaws is pivotable from a retracted position in which the male connector can be inserted between the jaws and an engaging position in which the jaws prevent withdrawal of the male connector from between the jaws. The male connector is movable between an extended and a retracted position, and is biased towards the retracted position.Type: GrantFiled: February 23, 2006Date of Patent: June 2, 2009Assignee: Aehr Test SystemsInventors: Frank Otto Uher, John William Andberg, Mark Charles Carbone, Donald Paul Richmond, II
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Patent number: 7088117Abstract: A cartridge (10) includes a chuck plate (12) for receiving a wafer (74) and a probe plate (14) for establishing electrical contact with the wafer. In use, a mechanical connecting device (90) locks the chuck plate and the probe plate fixed relative to one another to maintain alignment of the wafer and the probe plate. Preferably, electrical contact with the wafer is established using a probe card (50) that is movably mounted to the probe plate by means of a plurality of leaf springs (52.) The mechanical connecting device is preferably a kinematic coupling including a male connector (94) and first and second opposed jaws (122, 124.) Each of the jaws is pivotable from a retracted position in which the male connector can be inserted between the jaws and an engaging position in which the jaws prevent withdrawal of the male connector from between the jaws. The male connector is movable between an extended and a retracted position, and is biased towards the retracted position.Type: GrantFiled: March 24, 2003Date of Patent: August 8, 2006Assignee: Aehr Test SystemInventors: Frank Otto Uher, John William Andberg, Mark Charles Carbone, Donald Paul Richmond, II
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Patent number: 6682945Abstract: A burn-in and electrical test system (20) includes a temperature controlled zone (22) and a cool zone (24) separated by a transition zone 25. The temperature controlled zone (22) is configured to receive a plurality of wafer cartridges (26) and connect the cartridges (26) to test electronics (28) and power electronics (30), which are mounted in the cool zone (24). Each of the wafer cartridges (26) contains a semiconductor wafer incorporating a plurality of integrated circuits. The test electronics (28) consists of a pattern generator PCB (100) and a signal driver and fault analysis PCB (102) connected together by a parallel bus (104). The pattern generator PCB (100) and the fault analysis PCB (102) are connected to a rigid signal probe PCB (104) in cartridge (26) to provide a straight through signal path.Type: GrantFiled: May 25, 2001Date of Patent: January 27, 2004Assignee: AEHR Test SystemsInventors: Donald Paul Richmond, II, John Dinh Hoang, Jerzy Lobacz
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Patent number: 6580283Abstract: A cartridge (10) includes a chuck plate (12) for receiving a wafer (74) and a probe plate (14) for establishing electrical contact with the wafer. In use, a mechanical connecting device (90) locks the chuck plate and the probe plate fixed relative to one another to maintain alignment of the wafer and the probe plate. Preferably, electrical contact with the wafer is established using a probe card (50) that is movably mounted to the probe plate by means of a plurality of leaf springs (52). The mechanical connecting device is preferably a kinematic coupling including a male connector (94) and first and second opposed jaws (122, 124). The cartridge can then be removed from the alignment device and placed in a burn-in or test chamber that does not itself require means for aligning the wafer or for providing a probing force.Type: GrantFiled: July 14, 1999Date of Patent: June 17, 2003Assignee: Aehr Test SystemsInventors: Mark Charles Carbone, Frank Otto Uher, John William Andberg, Jerzy Lobacz, Donald Paul Richmond, II
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Patent number: 6562636Abstract: A burn-in and electrical test system (20) includes a temperature controlled zone (22) and a cool zone (24) separated by a transition zone 25. The temperature controlled zone (22) is configured to receive a plurality of wafer cartridges (26) and connect the cartridges (26) to test electronics (28) and power electronics (30), which are mounted in the cool zone (24). Each of the wafer cartridges (26) contains a semiconductor wafer incorporating a plurality of integrated circuits. The test electronics (28) consists of a pattern generator PCB (100) and a signal driver and fault analysis PCB (102) connected together by a parallel bus (104). The pattern generator PCB (100) and the fault analysis PCB (102) are connected to a rigid signal probe PCB (104) in cartridge (26) to provide a straight through signal path.Type: GrantFiled: July 14, 1999Date of Patent: May 13, 2003Assignee: Aehr Test SystemsInventors: Donald Paul Richmond, II, John Dinh Hoang, Jerry Lobacz
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Patent number: 6556032Abstract: A cartridge (10) includes a chuck plate (12) for receiving a wafer (74) and a probe plate (14) for establishing electrical contact with the wafer. In use, a mechanical connecting device (90) locks the chuck plate and the probe plate fixed relative to one another to maintain alignment of the wafer and the probe plate. Preferably, electrical contact with the wafer is established using a probe card (50) that is movably mounted to the probe plate by means of a plurality of leaf springs (52.) The mechanical connecting device is preferably a kinematic coupling including a male connector (94) and first and second opposed jaws (122, 124.) Each of the jaws is pivotable from a retracted position in which the male connector can be inserted between the jaws and an engaging position in which the jaws prevent withdrawal of the male connector from between the jaws. The male connector is movable between an extended and a retracted position, and is biased towards the retracted position.Type: GrantFiled: June 18, 2001Date of Patent: April 29, 2003Assignee: Aehr Test SystemsInventors: Frank Otto Uher, John William Andberg, Mark Charles Carbone, Donald Paul Richmond, II
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Patent number: 6413113Abstract: A kinematic coupling includes a male connector (94) and first and second opposed jaws (122, 124.) Each of the jaws is pivotable from a retracted position in which the male connector can be inserted between the jaws and an engaging position in which the jaws prevent withdrawal of the male connector from between the jaws. The male connector is movable between an extended and a retracted position, and is biased towards the retracted position. This provides a positive clamping force when the kinematic coupling is engaged.Type: GrantFiled: July 14, 1999Date of Patent: July 2, 2002Assignee: Aehr Test SystemsInventors: Frank Otto Uher, John William Andberg, Mark Charles Carbone, Donald Paul Richmond, II
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Patent number: 6340895Abstract: A cartridge (10) includes a chuck plate (12) for receiving a wafer (74) and a probe plate (14) for establishing electrical contact with the wafer. In use, a mechanical connecting device (90) locks the chuck plate and the probe plate fixed relative to one another to maintain alignment of the wafer and the probe plate. Preferably, electrical contact with the wafer is established using a probe card (50) that is movably mounted to the probe plate by means of a plurality of leaf springs (52.) The mechanical connecting device is preferably a kinematic coupling including a male connector (94) and first and second opposed jaws (122, 124.) Each of the jaws is pivotable from a retracted position in which the male connector can be inserted between the jaws and an engaging position in which the jaws prevent withdrawal of the male connector from between the jaws. The male connector is movable between an extended and a retracted position, and is biased towards the retracted position.Type: GrantFiled: July 14, 1999Date of Patent: January 22, 2002Assignee: AEHR Test Systems, Inc.Inventors: Frank Otto Uher, John William Andberg, Mark Charles Carbone, Donald Paul Richmond, II
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Patent number: 6217367Abstract: A kinematic coupling includes a male connector (94) and first and second opposed jaws (122, 124.) Each of the jaws is pivotable from a retracted position in which the male connector can be inserted between the jaws and an engaging position in which the jaws prevent withdrawal of the male connector from between the jaws. The male connector is movable between an extended and a retracted position, and is biased towards the retracted position. This provides a positive clamping force when the kinematic coupling is engaged.Type: GrantFiled: July 14, 1999Date of Patent: April 17, 2001Assignee: Aehr Test SystemsInventors: Frank Otto Uher, John William Andberg, Mark Charles Carbone, Donald Paul Richmond, II