Patents Assigned to OptoPac, Inc.
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Patent number: 7494848Abstract: An electronic package for a photo-sensing device is provided. The package is formed to include a substrate of a material substantially transparent to light within a predetermined range of wavelengths. The package further formed to include at least one photo-sensing die having a photo-sensing area defined on a front side thereof. The photo-sensing die is mounted to the substrate by a plurality of interconnection joints disposed about the photo-sensing area, whereby the front side of the photo-sensing die is spaced by a gap from a front surface of the substrate. A sealing structure is formed to extend about the interconnection joints to fill portions of the gap thereabout, such that the sealing structure contiguously encloses an internal cavity in substantially sealed manner between the photo-sensing die and substrate. This internal cavity communicates with the photo-sensing area of the photo-sensing die.Type: GrantFiled: September 15, 2006Date of Patent: February 24, 2009Assignee: OptoPac, Inc.Inventor: Deok-Hoon Kim
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Patent number: 7384818Abstract: A semiconductor device package and method for its fabrication are provided. The semiconductor device package generally includes at least one semiconductor die and a substrate coupled to the semiconductor die. The semiconductor die is provided with a front side defining a sealing area, and a first solder sealing ring pad formed on that front side. The substrate is provided with a front surface opposing the front side of the semiconductor die on which a second solder sealing ring pad is formed. A solder sealing ring structure is sandwiched between the first and second solder sealing pads of the substrate and semiconductor die, such that it extends peripherally about a substantial portion of the sealing area to substantially enclose thereat a cavity between the semiconductor die and the substrate. The solder sealing ring structure includes at least one venting portion defining against at least one of the substrate and semiconductor die an air vent in open communication with the cavity.Type: GrantFiled: October 24, 2006Date of Patent: June 10, 2008Assignee: Optopac, Inc.Inventors: Deok-Hoon Kim, Hwan-Chul Lee
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Patent number: 7291518Abstract: A photo-sensing device package and the method of packaging such device is provided. The package includes an assembly portion having a substrate formed of a material substantially transparent to light within a predetermined range of wavelengths and a sensing portion having at least one photo-sensing die photo-electronically transducing light within the predetermined range of wavelengths. The assembly portion is formed with at least one metal layer disposed on the substrate about a front surface region thereof, and at least one passivation layer formed to extend over the metal layer. The passivation layer is patterned to define a plurality of first and second access openings respectively about a plurality of first solder wettable pads and at least one second solder wettable pad on the metal layer.Type: GrantFiled: May 18, 2005Date of Patent: November 6, 2007Assignee: Optopac, Inc.Inventor: Deok-Hoon Kim
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Patent number: 7141869Abstract: A semiconductor device package and method for its fabrication are provided. The semiconductor device package generally includes at least one semiconductor die and a substrate coupled to the semiconductor die. The semiconductor die is provided with a front side defining a sealing area, and a first solder sealing ring pad formed on that front side. The substrate is provided with a front surface opposing the front side of the semiconductor die on which a second solder sealing ring pad is formed. A solder sealing ring structure is sandwiched between the first and second solder sealing pads of the substrate and semiconductor die, such that it extends peripherally about a substantial portion of the sealing area to substantially enclose thereat a cavity between the semiconductor die and the substrate. The solder sealing ring structure includes at least one venting portion defining against at least one of the substrate and semiconductor die an air vent in open communication with the cavity.Type: GrantFiled: February 9, 2005Date of Patent: November 28, 2006Assignee: Optopac, Inc.Inventors: Deok-Hoon Kim, Hwan-Chul Lee
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Patent number: 7122874Abstract: An electronic package for a photo-sensing device is provided. The package is formed to include a substrate of a material substantially transparent to light within a predetermined range of wavelengths. The package further formed to include at least one photo-sensing die having a photo-sensing area defined on a front side thereof. The photo-sensing die is mounted to the substrate by a plurality of interconnection joints disposed about the photo-sensing area, whereby the front side of the photo-sensing die is spaced by a gap from a front surface of the substrate. A sealing structure is formed to extend about the interconnection joints to fill portions of the gap thereabout, such that the sealing structure contiguously encloses an internal cavity in substantially sealed manner between the photo-sensing die and substrate. This internal cavity communicates with the photo-sensing area of the photo-sensing die.Type: GrantFiled: September 10, 2004Date of Patent: October 17, 2006Assignee: Optopac, Inc.Inventor: Deok-Hoon Kim
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Patent number: 7038287Abstract: A photo-sensing device package and the method of packaging such device is provided. The package includes an assembly portion having a substrate formed of a material substantially transparent to light within a predetermined range of wavelengths; a sensing portion including at least one photo-sensing die photo-electronically transducing light within the predetermined range of wavelengths; and, a plurality of first solder joints joining the sensing and assembly portions. The assembly portion is formed with at least a first metal layer disposed on the substrate about a front surface region thereof; and, at least one passivation layer formed to extend over the first metal layer. The passivation layer is patterned to define a plurality of first and second access openings which respectively describe on the first metal layer a plurality of first and second solder bump pads, each of which is interconnected to at least one of the second solder bump pads.Type: GrantFiled: December 3, 2004Date of Patent: May 2, 2006Assignee: Optopac, Inc.Inventors: Deok Hoon Kim, John J. H. Reche
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Patent number: 6943424Abstract: A photo-sensing device package is provided. The package includes a substrate, at least one photo-sensing semiconductor die coupled to the substrate, and a patterned layer formed on a light receiving surface of the substrate. The substrate is formed of a material substantially transparent to light within a predetermined range of wavelengths, provided with front and backside surfaces on opposite sides thereof. The photo-sensing semiconductor die defines at least one photo-sensing area opposing the substrate front surface for receiving light impinging upon the substrate's backside surface and passing therethrough. The patterned layer is formed on the substrate's backside surface for blocking passage of at least a portion of the light otherwise impinging upon that backside surface, and is formed with a window opening aligned with at least a portion of the photo-sensing area for optical communication therewith through the substrate.Type: GrantFiled: July 8, 2004Date of Patent: September 13, 2005Assignee: Optopac, Inc.Inventor: Deok-Hoon Kim
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Patent number: 6943423Abstract: A photo-sensing device package and the method of packaging such device is provided. The package includes an assembly portion having a substrate formed of a material substantially transparent to light within a predetermined range of wavelengths and a sensing portion having at least one photo-sensing die photo-electronically transducing light within the predetermined range of wavelengths. The assembly portion is formed with at least one metal layer disposed on the substrate about a front surface region thereof, and at least one passivation layer formed to extend over the metal layer. The passivation layer is patterned to define a plurality of first and second access openings respectively about a plurality of first solder wettable pads and at least one second solder wettable pad on the metal layer.Type: GrantFiled: April 22, 2004Date of Patent: September 13, 2005Assignee: Optopac, Inc.Inventor: Deok-Hoon Kim
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Patent number: 6864116Abstract: A photo-sensing device package and the method of packaging such device is provided. The package includes an assembly portion having a substrate formed of a material substantially transparent to light within a predetermined range of wavelengths; a sensing portion including at least one photo-sensing die photo-electronically transducing light within the predetermined range of wavelengths; and, a plurality of first solder joints joining the sensing and assembly portions. The assembly portion is formed with at least a first metal layer disposed on the substrate about a front surface region thereof; and, at least one passivation layer formed to extend over the first metal layer. The passivation layer is patterned to define a plurality of first and second access openings which respectively describe on the first metal layer a plurality of first and second solder bump pads, each of which is interconnected to at least one of the second solder bump pads.Type: GrantFiled: October 27, 2003Date of Patent: March 8, 2005Assignee: OptoPac, Inc.Inventors: Deok Hoon Kim, John J. H. Reche