Ignition coil driver chip on printed circuit board for plughole coil housing
DRIVE
February 11, 2004
A product (10), product by process, and process according to the present invention integrates an ignition coil driver electronics (12) or ignitor into a plughole coil housing (14). Electronic components (16) are mounted directly to a printed circuit board (22) serving as a direct connection to connector terminals and/or coil leads (24) via plated-apertures (26). If required, at least one protective layer (28) can be applied directly to an external surface (30) of at least some of the electronic components (16) mounted on the printed circuit (22) board to compensate for differences in the coefficients of thermal expansion. The protective layer (28) is selected from a group including a conformal coating, a soft buffer material, a hard epoxy globtop, and combinations thereof.
Discussion in the ATmosphere