traces within the crystal packages connect pads 28 to the electrode deposited on the other side of the crystal blanks 24 and 26 preferably the crystals are configured as part of a crystal resonator package which can include circuit traces electrodes the crystals and other resonator materials in constructing the composite resonator first crystal resonator 10 can be rotated or inverted 180 u00b0 and placed on top of the second crystal resonator 12 the first resonator 10 is preferably rotated 180 u00b0 around the x or y axis as shown in fig8 so that planes 36 and 38 are mounted parallel to one another and the acceleration sensitivity vectors 14 and 16 are aligned essentially anti parallel although the vectors of the preferred embodiment are aligned exactly anti parallel other embodiments may have desired acceleration benefits where the vectors are aligned within 5 u00b0 and 10 u00b0 of anti parallel conductive straps 22 can connect the electrode pads 27 and 28 of the first crystal resonator 10 to the electrode pads 27 and 28 of the second crystal resonator 12 the crystal resonators can also be coupled together using other means such as adhesive use of the substrate etc fig3 illustrates an embodiment of an oscillator wherein the matched crystal resonators 10 and 12 are disposed on opposite sides of an oscillator circuit substrate 18 in this manner the crystal resonators 10 and 12 can each be attached.