Abstract:
A method of forming lenses includes providing a lens handler having a plurality of cavities formed into an upper surface thereof. For each of the cavities, the method includes dispensing a first polymer material into the cavity, pressing a non-planar stamp surface onto the first polymer material wherein an upper surface of the first polymer material is conformed to the non-planar stamp surface, and applying UV light to the first polymer material to cure the first polymer material. A dispenser carrier can be used that includes a plurality of liquid polymer dispensers. A stamp carrier can be used that includes a plurality of stamps each having a non-planar stamp surface. Alternately, a stamp handler having a plurality of stamps arranged along a curved surface can be used to roll along the polymer material such that an upper surface thereof conforms to the non-planar stamp surfaces.
Abstract:
Barrier layers for use in electrical applications. In some embodiments the barrier layer is a laminated barrier layer. In some embodiments the barrier layer includes a graded barrier layer.
Abstract:
A microelectronic image sensor assembly for backside illumination and method of making same are provided. The assembly includes a microelectronic element having contacts exposed at a front face and light sensing elements arranged to receive light of different wavelengths through a rear face. A semiconductor region has a first thickness between the first light sensing element and the rear face and a second thickness between the second light sensing element and the rear face such that the first and second light sensing elements receive light of substantially the same intensity. A dielectric region is provided at least substantially filling a space of the semiconductor region adjacent at least one of the light sensing elements. The dielectric region may include at least one light guide.
Abstract:
An image sensor package and method of manufacture that includes a crystalline handler with conductive elements extending therethrough, an image sensor chip disposed in a cavity of the handler, and a transparent substrate disposed over the cavity and bonded to both the handler and image sensor chip. The transparent substrate includes conductive traces that electrically connect the sensor chip's contact pads to the handler's conductive elements, so that off-chip signaling is provided by the substrate's conductive traces and the handler's conductive elements.
Abstract:
A method of bonding first and second microelectronic elements includes pressing together a first substrate containing active circuit elements therein with a second substrate, with a flowable dielectric material between confronting surfaces of the respective substrates, each of the first and second substrates having a coefficient of thermal expansion less than 10 parts per million/° C., at least one of the confronting surfaces having a plurality of channels extending from an edge of such surface, such that the dielectric material between planes defined by the confronting surfaces is at least substantially free of voids and has a thickness over one micron, and at least some of the dielectric material flows into at least some of the channels.
Abstract:
A microelectronic unit includes a semiconductor element consisting essentially of semiconductor material and having a front surface, a rear surface, a plurality of active semiconductor devices adjacent the front surface, a plurality of conductive pads exposed at the front surface, and an opening extending through the semiconductor element. At least one of the conductive pads can at least partially overlie the opening and can be electrically connected with at least one of the active semiconductor devices. The microelectronic unit can also include a first conductive element exposed at the rear surface for connection with an external component, the first conductive element extending through the opening and electrically connected with the at least one conductive pad, and a second conductive element extending through the opening and insulated from the first conductive element. The at least one conductive pad can overlie a peripheral edge of the second conductive element.
Abstract:
A chip-sized, wafer level packaged device including a portion of a semiconductor wafer including a device, at least one packaging layer containing silicon and formed over the device, a first ball grid array formed over a surface of the at least one packaging layer and being electrically connected to the device and a second ball grid array formed over a surface of the portion of the semiconductor wafer and being electrically connected to the device.
Abstract:
An image sensor device (and method of making same) that includes a substrate with front and back opposing surfaces, a plurality of photo detectors formed at the front surface, and a plurality of contact pads formed at the front surface which are electrically coupled to the photo detectors. A plurality of cavities are formed into a back surface of the substrate such that each cavity is disposed over one of the photo detectors. Absorption compensation material having light absorption characteristics that differ from those of the substrate is disposed in the cavities. A plurality of color filters are each disposed over one of the photo detectors. The plurality of photo detectors are configured to produce electronic signals in response to light incident through the color filters.
Abstract:
An image sensor device that includes a substrate and a plurality of color filters. The substrate includes a plurality of photo detectors (wherein a first portion of the plurality of photo detectors each has a lateral size that is smaller than that of each of a second portion of the plurality of photo detectors) and a plurality of contact pads which are electrically coupled to the photo detectors. The plurality of color filters are each disposed over one of the photo detectors. The plurality of photo detectors are configured to produce electronic signals in response to light incident through the color filters. A third portion of the plurality of photo detectors are laterally disposed between the first and second portions of the photo detectors, and each having a lateral size between those of the first and second portions of the photo detectors.
Abstract:
A method of bonding a first substrate and a second substrate includes the steps of rotating first substrate with an adhesive mass thereon, and second substrate contacting the mass and overlying the first substrate, controlling a vertical height of a heated control platen spaced apart from and not contacting the second substrate so as to control a temperature of the adhesive mass, so as to at least one of bond the first and second substrates in alignment with one another, or achieve a sufficiently planar adhesive interface between the first and second substrates.