Patents by Inventor Ghassem Azdasht

Ghassem Azdasht 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).

  • Patent number: 11618094
    Abstract: The invention relates to a solder ball feeding device, comprising a solder ball reservoir for receiving an amount of solder balls and a metering device for dispensing a metered feeding amount of solder balls to a discharge device, wherein the metering device comprises an ultrasound device and a dispensing nozzle with a dispensing cannula, the ultrasound device serving to apply vibrations to the dispensing nozzle, and the solder ball reservoir or the dispensing nozzle of the solder ball reservoir being provided with a pressure connection which serves to introduce a pressurized gas into the solder ball feeding device.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: April 4, 2023
    Assignee: Pac Tech—Packaging Technologies GmbH
    Inventor: Ghassem Azdasht
  • Patent number: 11554434
    Abstract: The invention relates to a method for fusing a solder material deposit by means of laser energy, in which laser radiation emitted from a first laser source is applied to the solder material deposit in a first application phase by means of a first laser device (11) and laser radiation emitted from a second laser source is applied to the solder material deposit in a second application phase by means of a second laser device (12), said first laser source having a lower laser power than the second laser source, a switch being made from the first application phase to the second application phase by means of a switching device (30) and said switch being triggered by a temperature sensor, by means of which the temperature of the solder material deposit is measured at least during the first application phase.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: January 17, 2023
    Assignee: PAC TECH—PACKAGING TECHNOLOGIES GMBH
    Inventor: Ghassem Azdasht
  • Patent number: 11224928
    Abstract: The invention relates to a device (10) for the separate application of solder material deposits (11), in particular solder balls, comprising a conveying device (19) for separately conveying the solder material deposits from a solder material reservoir (12) toward an application device (33), the conveying device having transport holders that are formed as passage holes and that can each be moved from a receiving position, in which a solder material deposit is received from the solder material reservoir, into a transfer position P2, in which the solder material deposit is exposed to a pressure gas, and from which the solder material deposit is transferred to an application opening of an application nozzle (36) of the application device into an application position P3, wherein a detector device (69) is provided that serves to trigger a treatment of the solder material deposit arranged in the application position P3 with laser radiation emitted by a laser device, wherein the detector device has a reflection senso
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: January 18, 2022
    Assignee: PAC TECH—PACKAGING TECHNOLOGIES GMBH
    Inventor: Ghassem Azdasht
  • Publication number: 20210379683
    Abstract: Assembly for placing solder from solder balls on a substrate, comprising a reservoir with a plurality of solder balls, an exit opening for releasing one single solder ball, a feeding channel between the reservoir and the exit opening with a feeding channel width larger than the diameter of one solder ball and smaller than the diameter of two solder balls, and a suction channel with end opening into the feeding channel which end is smaller than the diameter of one solder ball. A pressure difference is generated between the feeding channel and the suction channel and is controlled whereby pressure in the suction channel is smaller than in the feeding channel. A solder ball present in the feeding channel can be sucked to and held to the end of the suction channel at a first pressure difference to block feeding of solder balls and is released at a second pressure difference.
    Type: Application
    Filed: May 15, 2018
    Publication date: December 9, 2021
    Inventor: Ghassem Azdasht
  • Publication number: 20210220934
    Abstract: The invention relates to a method for fusing a solder material deposit by means of laser energy, in which laser radiation emitted from a first laser source is applied to the solder material deposit in a first application phase by means of a first laser device (11) and laser radiation emitted from a second laser source is applied to the solder material deposit in a second application phase by means of a second laser device (12), said first laser source having a lower laser power than the second laser source, a switch being made from the first application phase to the second application phase by means of a switching device (30) and said switch being triggered by a temperature sensor, by means of which the temperature of the solder material deposit is measured at least during the first application phase.
    Type: Application
    Filed: February 14, 2018
    Publication date: July 22, 2021
    Inventor: Ghassem Azdasht
  • Publication number: 20200269336
    Abstract: The invention relates to a solder ball feeding device, comprising a solder ball reservoir for receiving an amount of solder balls and a metering device for dispensing a metered feeding amount of solder balls to a discharge device, wherein the metering device comprises an ultrasound device and a dispensing nozzle with a dispensing cannula, the ultrasound device serving to apply vibrations to the dispensing nozzle, and the solder ball reservoir or the dispensing nozzle of the solder ball reservoir being provided with a pressure connection which serves to introduce a pressurized gas into the solder ball feeding device.
    Type: Application
    Filed: May 12, 2020
    Publication date: August 27, 2020
    Inventor: Ghassem Azdasht
  • Patent number: 10695853
    Abstract: A device for the application of solder material deposits includes a conveying device for conveying solder material deposits from a reservoir at an upper housing part toward an application device at a lower housing part. The conveying device can be moved from a receiving position P1 to a transfer position P2, in which the solder material deposit is exposed to a pressure gas via a pressure bore formed in the upper housing part and from which the solder material deposit is transferred to an application nozzle in an application position P3. The application device includes an application duct formed in the lower housing and forms a lower section of a transmission duct which serves to transmit laser radiation to the solder in the application nozzle. The application duct is inclined at an application angle ? with respect to the rotation axis.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: June 30, 2020
    Assignee: PAC TECH—PACKAGING TECHNOLOGIES
    Inventors: Ghassem Azdasht, Thorsten Krause
  • Patent number: 10634699
    Abstract: A device for the placing and contacting of a test contact of a test contact arrangement arranged on a contact carrier featuring a contact head having at least one transmission channel for transmitting thermal energy and transferring a vacuum. The contact head is provided with a test contact receptacle at its contact end in the area of a channel mouth, the test contact receptacle having a receiving gap formed between two parallel receiving cheeks for receiving the test contact and connected with the transmission channel. The receiving cheeks have contact surfaces at their contact ends for contacting a solder deposit arranged on the contact carrier to produce a heat conducting contact with the solder material of the solder deposit.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: April 28, 2020
    Assignee: PAC TECH—PACKAGING TECHNOLOGIES GMBH
    Inventors: Thorsten Krause, Ghassem Azdasht
  • Patent number: 10354971
    Abstract: The invention concerns a method for producing a chip module having a carrier substrate and at least one chip arranged on the carrier substrate, as well as a contact conductor arrangement for connecting chip pads to contacts arranged on a contact face of the chip module, in which method the front face of the chip which is provided with the chip pads is secured to the carrier substrate and then the contact conductor arrangement is formed by structuring of a contact material layer of the carrier substrate.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: July 16, 2019
    Assignee: PAC TECH—PACKAGING TECHNOLOGIES GMBH
    Inventors: Ghassem Azdasht, Thorsten Teutsch, Ricardo Geelhaar
  • Patent number: 10286470
    Abstract: The invention relates to a device (10) for the separate application of solder material deposits, in particular solder balls, comprising a conveying device for separately conveying the solder material deposits from a solder material reservoir toward an application device (33), the conveying device having transport holders that are formed as passage holes and that can each be moved from a receiving position P1, in which a solder material deposit is received from the solder material reservoir, into a transfer position P2, in which the solder material deposit is exposed to a pressure gas and from which the solder material deposit is transferred to the application device into an application position P3, wherein a removal device (46) for removing a solder material deposit from a transport holder arranged in a removal position P4 is arranged downstream of the transfer position in the conveying direction, the removal device being connected to a detector device for triggering the removal function, said detector device
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: May 14, 2019
    Assignee: PAC TECH—PACKAGING TECHNOLOGIES GMBH
    Inventor: Ghassem Azdasht
  • Patent number: 10118240
    Abstract: A method for forming solder deposits on elevated contact metallizations of terminal faces of a substrate formed in particular as a semiconductor component includes bringing wetting surfaces of the contact metallizations into physical contact with a solder material layer. The solder material is arranged on a solder material carrier. At least for the duration of the physical contact, a heating of the substrate and a tempering of the solder material layer takes place. Subsequently a separation of the physical contact between the contact metallizations wetted with solder material and the solder material layer takes place.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: November 6, 2018
    Assignee: PAC TECH—PACKAGING TECHNOLOGIES GMBH
    Inventor: Ghassem Azdasht
  • Patent number: 10081068
    Abstract: The invention relates to a device (10) for the separate application of solder material deposits (11), in particular solder balls, comprising a conveying device (19) for separately conveying the solder material deposits from a solder material reservoir (12) toward an application device (33), the conveying device having transport holders that are formed as passage holes and that can each be moved from a receiving position, in which a solder material deposit is received from the solder material reservoir, into a transfer position P2, in which the solder material deposit is exposed to a pressure gas and from which the solder material deposit is transferred to an application opening (37) of an application nozzle (36) of the application device into an application position P3, wherein a first detector device (69) for triggering a treatment of the solder material deposit arranged in the application position P3 with laser radiation emitted by a laser device and a second detector device (80) for locating the solder mat
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: September 25, 2018
    Assignee: PAC TECH—PACKAGING TECHNOLOGIES GMBH
    Inventor: Ghassem Azdasht
  • Publication number: 20180259554
    Abstract: The invention relates to a device for the placing and contacting of a test contact (15) of a test contact arrangement arranged on a contact carrier (19), wherein the device features a contact head (10) having at least one transmission channel for transmitting thermal energy and transferring a vacuum, wherein the contact head is provided with a test contact receptacle (11) at its contact end in the area of a channel mouth, wherein the test contact receptacle has a receiving gap (14) formed between two parallel receiving cheeks (12, 13) for receiving the test contact and connected with the transmission channel, wherein the receiving cheeks have contact surfaces (21) at their contact ends for contacting a solder deposit arranged (20) on the contact carrier, in order to produce a heat conducting contact with the solder material of the solder deposit.
    Type: Application
    Filed: July 26, 2016
    Publication date: September 13, 2018
    Inventors: Thorsten Krause, Ghassem Azdasht
  • Publication number: 20170320155
    Abstract: A method for forming solder deposits on elevated contact metallizations of terminal faces of a substrate formed in particular as a semiconductor component includes bringing wetting surfaces of the contact metallizations into physical contact with a solder material layer. The solder material is arranged on a solder material carrier. At least for the duration of the physical contact, a heating of the substrate and a tempering of the solder material layer takes place. Subsequently a separation of the physical contact between the contact metallizations wetted with solder material and the solder material layer takes place.
    Type: Application
    Filed: July 24, 2017
    Publication date: November 9, 2017
    Inventor: Ghassem Azdasht
  • Patent number: 9685423
    Abstract: The invention relates to a chip arrangement (18) comprising a terminal substrate (12) and a plurality of semiconductor substrates (1) which are arranged on the terminal substrate, in particular chips, wherein terminal faces (5) arranged on a contact surface of the chips (1) are connected to terminal faces on a contact surface (14) of the terminal substrate (12), wherein the chips (1) extend parallel with a lateral edge and transversally with their contact surface to the contact surface of the terminal substrate (12), wherein vias (13) are arranged in the terminal substrate, which connect external contacts (15) arranged on an external contact side to terminal faces formed as internal contacts (14) on the contact surface of the terminal substrate, wherein terminal faces of the chips, which are arranged adjacent to the lateral edge, are connected to the internal contacts of the terminal substrate by way of a re-melted solder material deposit (16).
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: June 20, 2017
    Assignee: PAC TECH—PACKAGING TECHNOLOGIES GMBH
    Inventor: Ghassem Azdasht
  • Publication number: 20170165772
    Abstract: The invention relates to a solder ball feeding device (40), comprising a solder ball reservoir (20) for receiving an amount of solder balls and a metering device (31) for dispensing a metered feeding amount of solder balls (16) to a discharge device (11), wherein the metering device comprises an ultrasound device (32) and a dispensing nozzle (21) with a dispensing cannula (43), the ultrasound device serving to apply vibrations to the dispensing nozzle, and the solder ball reservoir or the dispensing nozzle of the solder ball reservoir being provided with a pressure connection (23) which serves to introduce a pressurized gas into the solder ball feeding device.
    Type: Application
    Filed: July 15, 2015
    Publication date: June 15, 2017
    Inventor: Ghassem Azdasht
  • Publication number: 20170165773
    Abstract: The invention relates to a device (10) for the separate application of solder material deposits (11), in particular solder balls, comprising a conveying device for separately conveying solder material deposits from a solder material reservoir (12) arranged at an upper housing part (14) of the device toward an application device (33) arranged at a lower housing part (20) of the device, the conveying device being formed as a conveying disk (19) which is conveyed about a rotation axis (28), is arranged in an accommodating space (21) between the lower housing part and the upper housing part and has transport holders (18) which are formed as passage holes and each can be moved from a receiving position P1, in which a solder material deposit is received from the solder material reservoir, into a transfer position P2, in which the solder material deposit is exposed to a pressure gas via a pressure bore (42) formed in the upper housing part and from which the solder material deposit is transferred to an application n
    Type: Application
    Filed: July 15, 2015
    Publication date: June 15, 2017
    Inventors: Ghassem Azdasht, Thorsten Krause
  • Patent number: 9649711
    Abstract: A method for electrically contacting terminal faces of two substrates, such as a chip and a carrier substrate, includes two successive phases. In a first phase, the chip is positioned with its terminal faces against terminal faces of the substrate and laser energy is applied to the chip at the rear. In a second phase, a flux medium is applied and laser energy is applied to the rear of the chip to cause reflow. The device for performing the second phase of the method comprises a carrier table and a housing, which form a housing interior with a top side of the carrier table which receives the component arrangement, and a laser light source, which is oriented so that the laser radiation impinges on the rear side of the first substrate.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: May 16, 2017
    Assignee: PAC TECH-PACKAGING TECHNOLOGIES GMBH
    Inventor: Ghassem Azdasht
  • Publication number: 20170133340
    Abstract: The invention concerns a method for producing a chip module having a carrier substrate and at least one chip arranged on the carrier substrate, as well as a contact conductor arrangement for connecting chip pads to contacts arranged on a contact face of the chip module, in which method the front face of the chip which is provided with the chip pads is secured to the carrier substrate and then the contact conductor arrangement is formed by structuring of a contact material layer of the carrier substrate.
    Type: Application
    Filed: November 25, 2014
    Publication date: May 11, 2017
    Inventors: Ghassem Azdasht, Thorsten Teutsch, Ricardo Geelhaar
  • Publication number: 20160354853
    Abstract: The invention relates to a device (10) for the separate application of solder material deposits (11), in particular solder balls, comprising a conveying device (19) for separately conveying the solder material deposits from a solder material reservoir (12) toward an application device (33), the conveying device having transport holders that are formed as passage holes and that can each be moved from a receiving position, in which a solder material deposit is received from the solder material reservoir, into a transfer position P2, in which the solder material deposit is exposed to a pressure gas, and from which the solder material deposit is transferred to an application opening of an application nozzle (36) of the application device into an application position P3, wherein a detector device (69) is provided that serves to trigger a treatment of the solder material deposit arranged in the application position P3 with laser radiation emitted by a laser device, wherein the detector device has a reflection senso
    Type: Application
    Filed: October 23, 2014
    Publication date: December 8, 2016
    Inventor: Ghassem Azdasht