Abstract:
Through holes 36 are formed to penetrate a core substrate 30 and lower interlayer resin insulating layers 50, and via holes 66 are formed right on the through holes 36, respectively. Due to this, the through holes 36 and the via holes 66 are arranged linearly, thereby making it possible to shorten wiring length and to accelerate signal transmission speed. Also, since the through holes 36 and the via holes 66 to be connected to solder bumps 76 (conductive connection pins 78), respectively, are directly connected to one another, excellent reliability in connection is ensured.
Abstract:
A method of manufacturing RFID inlay structures includes providing a strap substrate containing an RFID chip. Strap pad patterns are formed adjacent said recessed regions over contacts of the RFID chip using a directly electroplateable resin (DER). The strap substrate is attached to an inlay substrate having an electrically conductive antenna and antenna contact patterns. The DER strap pad patterns, antenna pattern, antenna contacts and chip contacts are electroplated, thereby forming a metal interconnect between the contacts of the RFID chip and the antenna contacts on the inlay substrate. The strap substrate may be obtained from a web of strap substrates formed by a casting process. The DER material may be in the form of a DER ink and applied using a penplotter apparatus to form strap pad patterns or antenna coil patterns on the strap substrate, and to form antenna features and antenna contact patterns on the inlay substrate.
Abstract:
A wiring board (10) provided with a resistor comprises: an insulating substrate (11) having a surface; wiring patterns (14) formed on the surface, the wiring patterns (14) including first and second electrodes (14b,14c) spaced from each other by a certain distance; a first resistor (horizontal type resistor) (30) formed on the surface, the first resistor (30) having respective ends connected with the first and second electrodes (14b,14c), respectively; the wiring patterns (14) further including a third electrode (14a), occupying a first plane area on the surface; a second resistor (vertical type resistor) (16) formed on the third electrode (14a); a fourth electrode (18) formed on the second resistor (16); and the second resistor (16) and the fourth electrode (18) being located in a second plane area within the first plane area.
Abstract:
A method of manufacturing RFID inlay structures includes providing a strap substrate containing an RFID chip. Strap pad patterns are formed adjacent said recessed regions over contacts of the RFID chip using a directly electroplateable resin (DER). The strap substrate is attached to an inlay substrate having an electrically conductive antenna and antenna contact patterns. The DER strap pad patterns, antenna pattern, antenna contacts and chip contacts are electroplated, thereby forming a metal interconnect between the contacts of the RFID chip and the antenna contacts on the inlay substrate. The strap substrate may be obtained from a web of strap substrates formed by a casting process. The DER material may be in the form of a DER ink and applied using a penplotter apparatus to form strap pad patterns or antenna coil patterns on the strap substrate, and to form antenna features and antenna contact patterns on the inlay substrate.
Abstract:
A method of production of electrodes for an electrostatic motor generating electrostatic force between a facing stator and slider, including forming core electrodes on a board of at least one of the stator and the slider by patterning a conductive substance and depositing a conductive substance on the core electrodes so that the side edges become rounded. Any method selected from electroplating, electroless plating, electrostatic coating, or screen printing can be used to deposit the conductive substance on the core electrodes. The core electrodes may be patterned using non-etching means. Further, electrodes for an electrostatic motor generating an electrostatic force between a facing stator and slider provided with core electrodes patterned on the board of at least one of the stator and the slider and a conductive substance deposited on the core electrodes to form deposition layers so that the side edges become rounded.
Abstract:
A wiring substrate for mounting a light emitting element, comprising: a substrate body comprising an insulating material and having a first surface and a back surface; and a cavity being opened into the first surface of said substrate body and having a mounting area for mounting a light emitting element at a bottom face of said cavity, wherein a metallized layer provided along a side face of said cavity and metallized layers provided in said substrate body are provided to continue to each other.
Abstract:
A method for manufacturing a printed wiring board having a high-density wiring and a highly-reliable connection between conductor layers even if the annealing process is omitted because a conductor circuit made of an electroplating layer excellent in crystallinity and uniform electrodepositability and formed on a base sheet and a via hole are provided. The method comprising forming an interlayer resin insulating layer on a conductor wiring forming board, making an opening for making a via hole in the interlayer resin insulating layer, forming an electroless plating layer (1008) on the interlayer resin insulating layer, applying a resist film (1003) to the layer (1008), forming an electroplating film thereon, removing the resist film, and removing the electroless plating layer by etching so as to form a conductor wiring and a via hole characterized in that the electroless plating layer (1008) serves as a cathode, the plating metal serves as an anode, and electroplating is performed intermittently while maintaining the voltage between the anode and cathode at a constant value.
Abstract:
To create very small lines and spaces (≤ 25 µm, preferably ≤ 10 µm and being as low as 5 µm) on electronic circuit assemblies with justifiable effort a method is utilized which comprises the following method steps: a) providing a dielectric layer (5); b) forming a three-dimensional structure (10,10',10'') in the dielectric layer so as to provide one or more structure elements in the layer selected from the group comprising via holes, trenches and component recesses; c) applying a fluid (12) to at least part of surface regions of the dielectric layer exposed in the structure elements, the fluid containing or forming at least one of conductive particles or intrinsic conducting polymer on the surface; and d) metallizing (13) at least part of the surface regions.
Abstract:
Apparatus and methods are provided for a rigid metal core carrier substrate. The metal core increases the modulus for elasticity of the carrier substrate to greater than 20 Gpa to better resist bending loads and stresses encountered during assembly, testing and consumer handling. The carrier substrate negates the need to provide external stiffening members resulting in a microelectronic package of reduced size and complexity. The coefficient of thermal expansion of the carrier substrate can be adapted to more closely match that of the microelectronic die, providing a device more resistant to thermally-induced stresses. In one embodiment of the method in accordance with the invention, a metal sheet having a thickness in the range including 200-500 µm and a flexural modulus of elasticity of at least 20 Gpa is laminated on both sides with dielectric and conductive materials using standard processing technologies to create a carrier substrate.