Acoustic wave device and acoustic wave module including the same

2:

• The acoustic wave device according to claim 1, wherein
• a dimension of the first portion of the internal support layer in the first direction is greater than a dimension of the second portion of the internal support layer in the second direction;
• and
• at least a portion of the second portion of the internal support layer overlaps the through-hole when the acoustic wave device is seen in the plan view.

3:

• The acoustic wave device according to claim 2, wherein
• the second portion of the internal support layer includes a plurality of second portions extending in the second direction;
• the through-hole includes a plurality of through-holes;
• and
• each of the plurality of second portions of the internal support layer overlaps one of the plurality of through-holes respectively when the acoustic wave device is seen in the plan view.

5:

• The acoustic wave device according to claim 3, wherein
• the acoustic wave device has a rectangular or substantially rectangular shape including a shorter side and a longer side when the acoustic wave device is seen in the plan view;
• and
• the second direction is parallel or substantially parallel to the shorter side of the acoustic wave device.

6:

• The acoustic wave device according to claim 4, wherein
• the acoustic wave device has a rectangular or substantially rectangular shape including a shorter side and a longer side when the acoustic wave device is seen in the plan view;
• and
• the second direction is parallel or substantially parallel to the shorter side of the acoustic wave device.

8:

• The acoustic wave device according to claim 7, wherein
• the acoustic wave device has a rectangular or substantially rectangular shape including a shorter side and a longer side when the acoustic wave device is seen in the plan view;
• and
• the second direction is parallel or substantially parallel to the shorter side of the acoustic wave device.

11:

• The acoustic wave device according to claim 1, wherein
• the through hole includes a first through-hole and second through-hole;
• the second portion of the internal support layer includes a plurality of second portions each extending in the second direction different from the first direction;
• one of the plurality of second portions and another one of the plurality of second portions of the internal support layer are on opposite sides of the first portion of the internal support layer when the acoustic wave device is seen in the plan view;
• and
• at least a portion of the one of the plurality of second portions of the internal support layer overlaps the first through-hole and at least a portion of the another one of the plurality of second portions of the internal support layer overlaps the second through-hole when the acoustic wave device is seen in the plan view.

17:

• The acoustic wave device according to claim 1, wherein
• the acoustic wave device has a rectangular or substantially rectangular shape including a shorter side and a longer side when the acoustic wave device is seen in the plan view;
• the first direction is parallel or substantially parallel to the longer side of the acoustic wave device and the second direction is parallel or substantially parallel to the shorter side of the acoustic wave device;
• and
• at least a portion of the second portion of the internal support layer overlaps the through-hole when the acoustic wave device is seen in the plan view.