Small manufacturable array lattice layers
US5493305A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 1993 |
| Grant date | Feb 20, 1996 |
| Priority date | — |
| Expiry date | Apr 15, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/0087
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An electronic device operating in the microwave frequency range having components disposed in a plurality of planes, wherein the planes are stacked vertically. The electronic device is a T/R module or element forming a part of a subarray used in an active array radar. The T/R module or element comprises a transmit chip, a receive chip, low noise amplifiers, a phase shifter, an attenuator, switches, dc power supply, interconnects that interconnect the foregoing components and logic circuits to control the foregoing components. The components when stacked in a 3-D package are disposed behind a radiator or antenna, which transmits and receives the microwave signals. Behind the T/R module or element is a manifold which provides input and output to and from the T/R module or element. The microwave chips of the T/R module are monolithic microwave integrated circuit chips and control logic, which are disposed in an aluminum nitride substrate and coated with a conformal hermetic coating. The 3-D chip package can optionally include micro channel cooling by adding additional layers. The integrated circuits also employ a flip chip design for mounting to the wafers. Optional photonic interconn…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.