Abstract: Systems and methods for automated inspection of fillet formation along on or more peripheral edges (13a) of a packaged microelectronic device (14) that is attached to a supporting substrate (16), such system (10) including a feedback loop for controlling fillet formation. More specifically, the system (10) includes a dispensing system (18) configured for dispensing underfill material (22) onto the supporting substrate (16). The system (19) further includes an automated optical inspection (AOI) system (19) configured for determining a value of a measurable attribute of the fillet (12), such as whether the fillet (12) is properly dimensioned, i.e., sized and shaped. A feedback loop (66) is included between the dispensing system (18) and automated optical inspection system (19).

Abstract: Systems and methods for automated inspection of fillet formation along on or more peripheral edges (13a) of a packaged microelectronic device (14) that is attached to a supporting substrate (16), such system (10) including a feedback loop for controlling fillet formation. More specifically, the system (10) includes a dispensing system (18) configured for dispensing underfill material (22) onto the supporting substrate (16). The system (19) further includes an automated optical inspection (AOI) system (19) configured for determining a value of a measurable attribute of the fillet (12), such as whether the fillet (12) is properly dimensioned, i.e., sized and shaped. A feedback loop (66) is included between the dispensing system (18) and automated optical inspection system (19).

Abstract: Systems and methods for automated inspection of fillet formation along on or more peripheral edges (13a) of a packaged microelectronic device (14) that is attached to a supporting substrate (16), such system (10) including a feedback loop for controlling fillet formation More specifically, the system (10) includes a dispensing system (18) configured for dispensing underfill material (22) onto the supporting substrate (16) The system (19) further includes an automated optical inspection (AOI) system (19) configured for determining a value of a measurable attribute of the fillet (12), such as whether the fillet (12) is properly dimensioned, i e, sized and shaped A feedback loop (66) is included between the dispensing system (18) and automated optical inspection system (19).

Abstract: Methods for applying an underfill with vacuum assistance. The method may include dispensing the underfill onto a substrate proximate to at least one exterior edge of an electronic device attached to the substrate. A space between the electronic device and the substrate is evacuated through at least one gap in the underfill. The method further includes heating the underfill to cause the underfill to flow into the space. Because a vacuum condition is supplied in the open portion of the space before flow is initiated, the incidence of underfill voiding is lowered.

Abstract: Apparatus and methods for dispensing small amounts of a viscous material onto a workpiece. The narrow-profile dispensing apparatus includes a fluid chamber, a nozzle, and a valve seat disk representing individual components that are removable from a main body of the dispensing apparatus for cleaning and/or replacement. The nozzle is coupled with the fluid chamber by a heat transfer body that may be cooled by, for example, a cooling fluid routed through an air pathway defined in the heat transfer body. The main body of the dispensing apparatus may be cooled by air exhausted from an air cavity of a pneumatic actuator regulating the movement of a needle to control the flow of viscous material in the dispensing apparatus.

Abstract: Apparatus and methods for dispensing small amounts of a viscous material onto a workpiece. The narrow-profile dispensing apparatus includes a fluid chamber, a nozzle, and a valve seat disk representing individual components that are removable from a main body of the dispensing apparatus for cleaning and/or replacement. The nozzle is coupled with the fluid chamber by a heat transfer body that may be cooled by, for example, a cooling fluid routed through an air pathway defined in the heat transfer body. The main body of the dispensing apparatus may be cooled by air exhausted from an air cavity of a pneumatic actuator regulating the movement of a needle to control the flow of viscous material in the dispensing apparatus.

Abstract: Apparatus and methods for dispensing small amounts of a viscous material onto a workpiece. The narrow-profile dispensing apparatus includes a fluid chamber, a nozzle, and a valve seat disk representing individual components that are removable from a main body of the dispensing apparatus for cleaning and/or replacement. The nozzle is coupled with the fluid chamber by a heat transfer body that may be cooled by, for example, a cooling fluid routed through an air pathway defined in the heat transfer body. The main body of the dispensing apparatus may be cooled by air exhausted from an air cavity of a pneumatic actuator regulating the movement of a needle to control the flow of viscous material in the dispensing apparatus.

Abstract: Apparatus and methods for dispensing small amounts of a viscous material onto a workpiece. The narrow-profile dispensing apparatus includes a fluid chamber, a nozzle, and a valve seat disk representing individual components that are removable from a main body of the dispensing apparatus for cleaning and/or replacement. The nozzle is coupled with the fluid chamber by a heat transfer body that may be cooled by, for example, a cooling fluid routed through an air pathway defined in the heat transfer body. The main body of the dispensing apparatus may be cooled by air exhausted from an air cavity of a pneumatic actuator regulating the movement of a needle to control the flow of viscous material in the dispensing apparatus.

Abstract: Apparatus and methods for dispensing small amounts of a viscous material onto a workpiece. The narrow-profile dispensing apparatus includes a fluid chamber, a nozzle, and a valve seat disk representing individual components that are removable from a main body of the dispensing apparatus for cleaning and/or replacement. The nozzle is coupled with the fluid chamber by a heat transfer body that may be cooled by, for example, a cooling fluid routed through an air pathway defined in the heat transfer body. The main body of the dispensing apparatus may be cooled by air exhausted from an air cavity of a pneumatic actuator regulating the movement of a needle to control the flow of viscous material in the dispensing apparatus.

Abstract: Systems and methods for automated inspection of fillet formation along on or more peripheral edges (13a) of a packaged microelectronic device (14) that is attached to a supporting substrate (16), such system (10) including a feedback loop for controlling fillet formation More specifically, the system (10) includes a dispensing system (18) configured for dispensing underfill material (22) onto the supporting substrate (16) The system (19) further includes an automated optical inspection (AOI) system (19) configured for determining a value of a measurable attribute of the fillet (12), such as whether the fillet (12) is properly dimensioned, i e, sized and shaped A feedback loop (66) is included between the dispensing system (18) and automated optical inspection system (19)

Abstract: Apparatus and methods for dispensing small amounts of a viscous material onto a workpiece. The narrow-profile dispensing apparatus includes a fluid chamber, a nozzle, and a valve seat disk representing individual components that are removable from a main body of the dispensing apparatus for cleaning and/or replacement. The nozzle is coupled with the fluid chamber by a heat transfer body that may be cooled by, for example, a cooling fluid routed through an air pathway defined in the heat transfer body. The main body of the dispensing apparatus may be cooled by air exhausted from an air cavity of a pneumatic actuator regulating the movement of a needle to control the flow of viscous material in the dispensing apparatus.

Abstract: Apparatus and methods for dispensing small amounts of a viscous material onto a workpiece. The narrow-profile dispensing apparatus includes a fluid chamber, a nozzle, and a valve seat disk representing individual components that are removable from a main body of the dispensing apparatus for cleaning and/or replacement. The nozzle is coupled with the fluid chamber by a heat transfer body that may be cooled by, for example, a cooling fluid routed through an air pathway defined in the heat transfer body. The main body of the dispensing apparatus may be cooled by air exhausted from an air cavity of a pneumatic actuator regulating the movement of a needle to control the flow of viscous material in the dispensing apparatus.

Abstract: A jetting dispenser has a dispenser body with a fluid channel and a fluid channel outlet within the fluid channel. A valve member is movable within the fluid channel for selective contact with a valve seat near the fluid channel outlet. A jetting nozzle is adapted to be coupled to the dispenser body, adjacent the channel outlet, and has a nozzle body with a plurality of nozzle outlets in fluid communication with the channel outlet via a plurality of fluid passages through the nozzle body. The valve member is moved by a valve driver to contact the valve seat and impart momentum to liquid material supplied to the dispenser such that a plurality of droplets of liquid material are simultaneously jetted from the plurality of nozzle outlets.

Abstract: Systems and methods for dispensing or jetting a viscous material. The systems include an electronic controller and a jetting dispenser operatively coupled with the electronic controller. The systems further include at least one sensor that senses a system dispensing parameter and communicates an output signal representing the sensed parameter to the electronic controller for controlling system operation. In pneumatically-actuated jetting dispensers, a sensor may sense the fluid pressure in the air cavity of the pneumatic actuator. In jetting dispensers with a movable needle valve, a sensor may sense the displacement of the needle shaft. In other jetting dispensers, a sensor may sense the vibration of the jetting dispenser.

Abstract: A method is provided for forming at least one continuous line of viscous material between two components of an electronic assembly forming two substrates. The method includes the steps of depositing a plurality of spaced apart dots of the viscous material onto a surface of a first one of the substrates and bringing a second one of the substrates into contact with the dots causing the dots to merge together to form at least one continuous line of the viscous material between the two substrates.

Abstract: Apparatus and methods for dispensing small amounts of a viscous material onto a workpiece. The narrow-profile dispensing apparatus includes a fluid chamber, a nozzle, and a valve seat disk representing individual components that are removable from a main body of the dispensing apparatus for cleaning and/or replacement. The nozzle is coupled with the fluid chamber by a heat transfer body that may be cooled by, for example, a cooling fluid routed through an air pathway defined in the heat transfer body. The main body of the dispensing apparatus may be cooled by air exhausted from an air cavity of a pneumatic actuator regulating the movement of a needle to control the flow of viscous material in the dispensing apparatus.

Abstract: A jetting system has a jetting dispenser mounted for relative motion with respect to a plasma panel. A control is operable to cause the jetting dispenser to jet a phosphor droplet that is applied to a cell of the panel. A feedback signal indicative of the placement and size of the dot is communicated to a control. The size, velocity offset and/or placement of subsequently applied phosphor dots is controlled by heating and cooling, or adjusting a piston stroke in the jetting dispenser in response to the feedback.

Abstract: A fluid dispensing system and method therefore having a PDA controller is provided. The system includes a dispensing apparatus, a positioning system and a general purpose PDA for controlling the system. The PDA optionally includes dispensing system logic for communicating with the dispensing apparatus. The dispensing system logic optionally includes one or more of positioner control logic, create program logic, store program logic, teach logic and recall program logic. The PDA communicates with the positioning system and/or the dispensing apparatus by a wired and/or wireless connection. Optionally a plurality of dispensing systems are networked together and the PDA communicates with one or more dispensing systems via a connection to the network. The network may be wired or wireless, and the PDA may have a wired or a wireless connection to the network.

Abstract: A method of noncontact dispensing a viscous material onto a surface of a substrate, which uses a jetting valve having a nozzle directing the viscous material flow in a jetting direction nonperpendicular to the surface of the substrate. The nonperpendicular jetting direction results in the droplet producing a reduced wetted area on the substrate.

Abstract: Systems and methods for automated inspection of fillet formation along on or more peripheral edges (13a) of a packaged microelectronic device (14) that is attached to a supporting substrate (16), such system (10) including a feedback loop for controlling fillet formation. More specifically, the system (10) includes a dispensing system (18) configured for dispensing underfill material (22) onto the supporting substrate (16). The system (19) further includes an automated optical inspection (AOI) system (19) configured for determining a value of a measurable attribute of the fillet (12), such as whether the fillet (12) is properly dimensioned, i.e., sized and shaped. A feedback loop (66) is included between the dispensing system (18) and automated optical inspection system (19).