Carrier for mounting a piezoelectric device on a circuit board and method for mounting a piezoelectric device on a circuit board

摘要

A carrier for mounting a piezoelectric device, e.g., a surface acoustic wave (SAW) device, on a circuit board and a method of mounting a piezoelectric device on a circuit board using such a carrier are disclosed. The carrier includes a carrier bottom, a plurality of metal contacts, and a carrier lid attached to the carrier bottom. The carrier bottom has an opening extending partially through the carrier bottom from a top surface thereof and the opening is configured such that when a piezoelectric device to be mounted in the carrier is inserted into the carrier bottom, the piezoelectric device is at least partially recessed within the carrier bottom. The metal contacts include a cantilevered end configured for electrical connection to a piezoelectric device. The carrier lid is configured to retain a piezoelectric device within the carrier bottom and to apply substantially even pressure across a top surface of a piezoelectric device. The method includes mounting the carrier bottom to the circuit board prior to insertion of the piezoelectric device and connection of the carrier lid.

主权项

1. A carrier for mounting a piezoelectric crystal device on a circuit board, the carrier comprising:
a carrier bottom including an opening extending partially through the carrier bottom from a top surface thereof, the opening being configured such that when a piezoelectric crystal device to be mounted in the carrier is inserted into the carrier bottom, the piezoelectric crystal device is at least partially recessed within the carrier bottom; a plurality of metal contacts, mounted on the carrier bottom, wherein each of the plurality of metal contacts is configured such that a first end of each contact is arranged outside of the carrier for electrical connection to a circuit board on which the carrier is to be mounted and a second end is arranged inside of the carrier for electrical connection to the piezoelectric crystal device; and a carrier lid attached to the carrier bottom, wherein the carrier lid is configured to retain a piezoelectric crystal device within the carrier bottom and to apply substantially even pressure across an entire top surface of the piezoelectric crystal device, wherein the plurality of metal contacts are arranged such that the second end of each of the plurality of metal contacts is in alignment with a corresponding one of a plurality of electrical pads of the piezoelectric crystal device, the electrical pads are on a bottom surface of the piezoelectric crystal device, and the bottom surface of the piezoelectric crystal device is on an opposite side of the piezoelectric crystal device from the top surface of the piezoelectric crystal device, and wherein at least one of the second ends of the metal contacts terminates in an end tip, the end tip configured to point towards the piezoelectric crystal device when the piezoelectric crystal device to be mounted in the carrier is inserted into the carrier bottom.