Curiosphere. Chronomath. Dimensions. Futura-sciences. CultureMATH. WebElements Periodic Table of the Elements. The Periodic Table of Videos - University of Nottingham. Histoire des math. Untitled. How does a Capacitor Work. Global SMT & Packaging magazine - Apple and Microsoft join MEPTE.
Encyclopedia. Microelectronics packaging handbook. Chip On Board Tutoriel. Chip-On-Board Technology brings unique assembly options to the systems designer. In this technology the silicon die is glued directly to the surface of a printed circuit board between the die and the PCB or AL2O3 to establish the electric connection; a coating of opaque epoxy resin is deposited over the die to protect it against shocks and the harmful effects of light. Features/Benefits: High or Low Voltage Design Custom Coatings Multi-layer, Double-sided Boards Functional Board Testing High or Low Volume Wide Temperature Ranges Cost Competitive Solutions Turn-Key Applications A populated circuit board is shown below. It has several COBs bonded on the board. A detailed view of COB is shown in the following figure: As seen from the above figure, die is attached directly to the PCB, and wires are bonded to the PCB pads directly.
Typical applications of SMT components: Commercial DC-DC Power Converters Industrial Inverters Military Motor Control Power Supplies Space/Aerospace.