摘要:
An eye-mountable device includes an electrochemical sensor embedded in a polymeric material configured for mounting to a surface of an eye. The electrochemical sensor includes a working electrode and a reference electrode that reacts with an analyte to generate a sensor measurement related to a concentration of the analyte in a fluid to which the eye-mountable device is exposed. An example assembly process includes: forming a sacrificial layer on a working substrate; forming a first layer of a bio-compatible material on the sacrificial layer; providing an electronics module on the first layer of the bio-compatible material, forming a second layer of the bio-compatible material to cover the electronics module; and annealing the first and second layers of the bio-compatible material together to form an encapsulated structure having the electronics module fully encapsulated by the bio-compatible material.
摘要:
A packaged microelectronic assembly includes a microelectronic element (104) having a front surface (122) and a plurality of first solid metal posts (110) extending away from the front surface (122). Each of the first posts (110) has a width in a direction of the front surface (122) and a height extending from the front surface (122), wherein the height (H2) is at least half of the width (Wl). There is also a substrate (102) having a top surface (101) and a plurality of second solid metal posts (108) extending from the top surface (102) and joined to the first solid metal posts (110).
摘要:
A method for producing optoelectronic components (1) is specified, in which a plurality of semiconductor bodies (2) each having a semiconductor layer sequence are provided. A component carrier assemblage (30) having a plurality of connection pads (35) is also provided. The semiconductor bodies (2) are positioned relative to the component carrier assemblage (30). An electrically conductive connection is produced between the connection pads (35) and the associated semiconductor bodies (2), and the semiconductor bodies are fastened to the component carrier assemblage (30). The optoelectronic components (2) are completed, wherein a component carrier (3) is formed for each optoelectronic component (1) from the component carrier assemblage (30) on which the semiconductor bodies (2) are fastened. An optoelectronic component is also specified.
摘要:
An IC chip (11) mounting method which mounts two or more IC chips (11) on a base (13), includes: preparing a wafer (10) by mounting a tape (30) on a face thereof, which is the reverse of the wafer (10) having a mounting surface to be attached to the base (13), and by dividing the wafer (10) into IC chips (11) by dicing while leaving the tape (30); positioning the wafer (10) to face the base (13) in such a direction that the mounting surface to be attached to the base (13) faces the base (13); sequentially pressing the IC chips (11) on the wafer (10) against the base (13) and temporarily fixing the IC chips (11) while the base (13) is being fed in a prescribed one-dimensional direction along the wafer (10) and while the wafer (10) is being moved two-dimensionally along the base (13) ; and fixing the IC chips (11) temporarily fixed on the base (13) on the base (13) by heating and pressurizing in a batch manner.
摘要:
The invention provides a taped lead frame for use in manufacturing electronic packages. The taped lead frame is composed of a tape and a lead frame formed from a plurality of individual metal features attached to the tape and arranged in a footprint pattern. The method of making the invention enables the thickness of conventional frames to shrink significantly to result in thinner packages for improved heat dissipation and shorter geometries for improved electrical performance. A plurality of such lead frames are arranged in an array on a sheet of tape and each lead frame is separated from surrounding lead frames by street regions on the tape such that no metal feature extends into a street region. Integrated circuit chips are attached and electrically connected to the lead frames and an encapsulant is applied, cured and dried over the lead frames and the street regions. Thereafter, the tape is removed and the lead frames are singulated by cutting through the encapsulant in the street regions to form individual packages. Singulation occurs in the street regions and does not cut into any metal feature forming the lead frame.
摘要:
The invention seeks to provide technology for ensuring satisfactory connections upon establishment of electrical connections between pad electrodes provided on a to-be-transferred piece and pad electrodes provided on a transfer destination substrate. A transfer chip according to the present invention is formed on a first substrate and transferred from the first substrate to a second substrate having wiring. The transfer chip serves as a transfer unit including at least a thin-film electrical circuit formed of stacked films and a plurality of pad electrodes for establishing connections between the thin-film electrical circuit and another circuit. The pad electrodes (56d and 56f) are arranged over the entire one surface of the transfer chip and cover thin-film elements or thin-film wiring included in the thin-film electrical circuit provided below the pad electrodes (56d and 56f). Accordingly, the tops (56d-1, 56d-2, and 56f-1) of rough surface portions of the pad electrodes (56d and 56f) have approximately the same height.
摘要:
The invention seeks to provide technology for ensuring satisfactory connections upon establishment of electrical connections between pad electrodes provided on a to-be-transferred piece and pad electrodes provided on a transfer destination substrate. A transfer chip according to the present invention is formed on a first substrate and transferred from the first substrate to a second substrate having wiring. The transfer chip serves as a transfer unit including at least a thin-film electrical circuit formed of stacked films and a plurality of pad electrodes for establishing connections between the thin-film electrical circuit and another circuit. The pad electrodes (56d and 56f) are arranged over the entire one surface of the transfer chip and cover thin-film elements or thin-film wiring included in the thin-film electrical circuit provided below the pad electrodes (56d and 56f). Accordingly, the tops (56d-1, 56d-2, and 56f-1) of rough surface portions of the pad electrodes (56d and 56f) have approximately the same height.