Patent ID: 9667221
Date: 2017-05-30
CPC Classifications: H01L,H03H

Claim:
1. An acoustic wave device comprising: a first chip that includes a first substrate, and a first filter formed on a first surface of the first substrate; a second chip that includes a second substrate, and a second filter formed on a second surface of the second substrate, the second surface being located in a plane different from the first surface; a third substrate that includes a plurality of laminated insulating layers including a first insulating layer, a second insulating layer, a third insulating layer and a fourth insulating layer, wherein the first surface and the second surface are directed to a same direction, the first chip is mounted on the first insulating layer and is embedded in the second insulating layer; the third insulating layer is located on the second insulating layer and overlaps with the first chip and the second chip in a planar view; and the second chip is mounted on the third insulating layer, overlaps with the first chip in the planar view and is embedded in the fourth insulating layer.