Patent ID: 9093981
Filing Date: 2015-07-28
Classification: H01L,H03H

Abstract:
1. A circuit substrate comprising: a laminate substrate in which a conductive layer and an insulating layer are laminated; an antenna terminal disposed in the laminate substrate; a plurality of filter chips each having an acoustic wave filter and being provided inside of the laminate substrate, the plurality of filter chips including a transmit filter chip having a transmit filter and a receive filter chip having a receive filter, said transmit filter and said receive filter constituting a duplexer, and one of the filter chips being electrically connected to said antenna terminal; and an active component that is provided on a surface of the laminate substrate and is connected with said one of the filter chips, at least a part of the active component overlapping with a projected region that is a region of said one of the filter chips projected in a thickness direction of the laminate substrate.