Radio-frequency packaging with reduced RF loss
First Claim
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1. A device comprising:
- an interposer comprising;
a first side and a second side opposite to the first side, wherein the interposer does not comprise through-interposer vias therein;
first passive devices on the first side of the interposer; and
second passive devices on the second side of the interposer, wherein the first and the second passive devices are configured to transmit signals wirelessly between the first passive devices and the second passive devices;
a radio-frequency (RF) device bonded to the first side of the interposer and electrically connected to the first passive devices; and
a wireless signal transmitting device formed of the first passive device and the second passive device, wherein the wireless signal transmitting device is selected from the group consisting essentially of a capacitor and a transformer, with the capacitor comprising a first capacitor plate being a part of the first passive devices, and a second capacitor plate being a part of the second passive devices, and the transformer comprising a first inductor being a part of the first passive devices, and a second inductor being a part of the second passive devices.
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Abstract
A device includes an interposer and a radio-frequency (RF) device bonded to a first side of the interposer. The interposer includes a first side and a second side opposite to the first side. The interposer does not have through-interposer vias formed therein. First passive devices are formed on the first side of the interposer and electrically coupled to the RF device. Second passive devices are formed on the second side of the interposer. The first and the second passive devices are configured to transmit signals wirelessly between the first passive devices and the second passive devices.
62 Citations
14 Claims
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1. A device comprising:
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an interposer comprising; a first side and a second side opposite to the first side, wherein the interposer does not comprise through-interposer vias therein; first passive devices on the first side of the interposer; and second passive devices on the second side of the interposer, wherein the first and the second passive devices are configured to transmit signals wirelessly between the first passive devices and the second passive devices; a radio-frequency (RF) device bonded to the first side of the interposer and electrically connected to the first passive devices; and a wireless signal transmitting device formed of the first passive device and the second passive device, wherein the wireless signal transmitting device is selected from the group consisting essentially of a capacitor and a transformer, with the capacitor comprising a first capacitor plate being a part of the first passive devices, and a second capacitor plate being a part of the second passive devices, and the transformer comprising a first inductor being a part of the first passive devices, and a second inductor being a part of the second passive devices. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A device comprising:
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a first interposer comprising a first side and a second side opposite to the first side; first passive devices on the first side of, and as a part of, the first interposer; a second interposer comprising a first side and a second side opposite to the first side, wherein the second side of the first interposer faces, and is attached to, the second side of the second interposer, and wherein no metal feature is disposed in the first and the second interposers; second passive devices on the first side of, and as a part of, the second interposer; a radio-frequency (RF) device bonded to the first side of the first interposer; a package substrate bonded to the first side of the second interposer through a flip chip bonding, wherein the RF device is signally connected to the package substrate; and a RF signal transmitting device comprising a first portion as a part of the first passive devices and a second portion as a part of the second passive devices, wherein the RF signal transmitting device is configured to transmit RF signals between the first and the second portions. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification