Patent ID: 6235991
Filing Date: 2001-05-22
Classification: H05K

Abstract:
An assembly comprising:a back plate having a fastener opening extending into the back plate, the back plate having a top and bottom surface, the fastener opening extends between the top and bottom surfaces of the back plate;a circuit board having a top and bottom surface and an opening extending between the top and bottom surfaces, the opening having an upper and lower portion, the upper portion having a breadth larger than a breadth of the lower portion, the opening aligned with the fastener opening;a fastener having an end and a head with a top surface, the fastener inserted into the opening in the circuit board and into the fastener opening to couple the circuit board and back plate, at least a portion of the head being positioned in the opening in the circuit board such that the top surface of the head does not protrude beyond the top surface of the circuit board, and the circuit board and back plate being coupled such that the bottom surface of the circuit board is adjacent to the top surface of the back plate;the back plate includes a recessed area in the bottom surface of the back plate, surrounding the fastener opening, the recessed area having a top surface; anda brace contacting the fastener and the back plate, the brace being a spring type washer having an outer edge contacting the top surface of the recessed area and an inner edge contacting the fastener.