Microelectronic device package with integral antenna module and semiconductor device
In a described example, an apparatus includes: a semiconductor device mounted to a device side surface of a package substrate, the package substrate having a board side surface opposite the device side surface; an antenna module mounted to the package substrate and coupled to the semiconductor device; and mold compound covering the semiconductor device and a portion of the package substrate.
1 . An apparatus, comprising:
a semiconductor device mounted to a device side surface of a package substrate, the package substrate having a board side surface opposite the device side surface;
an antenna module mounted to the package substrate via a solder ball, the antenna module coupled to the semiconductor device, the antenna module further comprising radiator elements formed of conductor material on one surface of a core, and comprising a ground plane reflector formed of the conductor material on an opposite surface of the core, and having dielectric material over the radiator elements and over the ground plane reflector; and
mold compound covering the semiconductor device, and a portion of the package substrate.
2 . The apparatus of claim 1 , wherein the semiconductor device is a transceiver.
3 . The apparatus of claim 1 , wherein the antenna module is mounted on the device side of the package substrate and is covered by the mold compound.
4 . The apparatus of claim 1 , wherein the antenna module is mounted on the device side of the package substrate and is partially covered by the mold compound, and wherein the antenna module has a surface exposed from the mold compound.
5 . The apparatus of claim 1 , wherein the antenna module is mounted on the board side surface of the package substrate.
6 . The apparatus of claim 1 , wherein the package substrate is a multilayer package substrate having at least two trace layers.
7 . The apparatus of claim 6 , wherein the antenna module is a laminate having at least two trace layers, one of the at least two trace layers forming radiator elements, and another one of the at least two trace layers forming a ground plane reflector.
8 . The apparatus of claim 1 , wherein the package substrate has a first area, and the antenna module has a second area that is less than the first area.
9 . The apparatus of claim 1 , wherein the antenna module comprises a first antenna module, and further comprising additional antenna modules mounted to the package substrate.
10 . The apparatus of claim 9 , wherein the semiconductor device is a radar transceiver, and the antenna module and additional antenna modules comprise receive antenna modules and transmit antenna modules.
11 . The apparatus of claim 1 , wherein the antenna module further comprises an antenna optimized for a frequency between 30 and 300 GHz.
12 . The apparatus of claim 1 , wherein the antenna module further comprises an antenna optimized for a frequency between 58 and 68 GHz.
13 . The apparatus of claim 1 , wherein the antenna module is a direct resonant antenna.
14 . The apparatus of claim 1 , wherein the antenna module comprises a laminate comprising radiator elements formed of a conductor material on one side of a resin core, and comprising a ground plane reflector formed of the conductor material on an opposite side of the resin core, and having dielectric material over the radiator elements and over the ground plane reflector, the radiator elements forming a slot antenna.
15 . The apparatus of claim 14 , wherein the conductor material is of copper, aluminum, silver, or gold.
16 . The apparatus of claim 1 , wherein the semiconductor device is a semiconductor die that is flip chip mounted to the device side surface of the package substrate, the semiconductor die having conductive post connects extending from the semiconductor die, the conductive post connects with a proximate end on a bond pad on the semiconductor die and extending to a distal end away from the semiconductor die, and having a solder bump on the distal end of the conductive post connects, the solder bumps forming bonds to the package substrate.
17 . The apparatus of claim 1 , wherein the package substrate further comprises a multilayer package substrate having dielectric material between conductor layers comprising Ajinomoto Build Up Film (ABF), acrylonitrile butadiene styrene (ABS), acrylonitrile styrene acrylate (ASA), or epoxy resin.
18 . The apparatus of claim 17 , wherein the conductor layers in the multilayer package substrate are of copper, gold, aluminum, silver or an alloy thereof.
19 . The apparatus of claim 1 wherein the ground plane reflector of the antenna module is spaced from radiator elements by a distance corresponding to a quarter of a wavelength for a predetermined frequency.