Single substrate microwave radar transceiver including flip-chip integrated circuits
First Claim
1. A microwave radar assembly, comprising:
- an electrically insulative substrate having a surface;
coplanar microwave transmission line means formed on said surface of the substrate;
a microwave radar integrated circuit chip having a surface; and
coplanar microwave transmission line means formed on said surface of the radar chip;
the radar chip being mounted on the substrate with said surface of the radar chip facing said surface of the substrate, wherein portions of the transmission line means of the substrate to be interconnected with respective portions of the transmission line means of the radar chip are aligned with each other, and the transmission line means of the radar chip being electrically interconnected with the transmission line means of the substrate, wherein solder is formed on said portions of the transmission line means of the substrate and is fused with said respective portions of the transmission lines means of the radar chip.
4 Assignments
0 Petitions
Accused Products
Abstract
A microwave radar transceiver assembly (30) includes a monolithic microwave integrated circuit (MMIC) chip (58) having a coplanar waveguide transmssion lines (100, 102, 104) formed on the same surface (58a) as the electronic elements thereof. Coplanar waveguide transmission lines (68, 70, 72) are also formed on a surface (62a) of a substrate (62). The transceiver chip (58), in addition to other chips (56, 60), are mounted on the substrate (62) in a flip-chip arrangement, with the respective surfaces (58a, 62a) on which the transmission lines (100, 102, 104; 68, 70, 72) are formed facing each other. Electrically conductive bumps (106, 108, 110) are formed on portions of the transmission lines (100, 102, 104) of the chips (56, 58, 60) which are to be interconneced with the transmission lines (68, 70, 72) of the substrate (62), and solder (114) is formed on the portions of the transmission line (68, 70, 72) of the substrate (62) which are to be interconnected with the transmission lines (100, 102, 104) of the chips (56, 68, 60). The bumps (106, 108, 110) provide spacing between the mating surfaces (58a, 62a) of the substrate (62) and chips (56, 68, 60), and isolation between electronic elements on the chips (56, 58, 60).
192 Citations
12 Claims
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1. A microwave radar assembly, comprising:
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an electrically insulative substrate having a surface; coplanar microwave transmission line means formed on said surface of the substrate; a microwave radar integrated circuit chip having a surface; and coplanar microwave transmission line means formed on said surface of the radar chip; the radar chip being mounted on the substrate with said surface of the radar chip facing said surface of the substrate, wherein portions of the transmission line means of the substrate to be interconnected with respective portions of the transmission line means of the radar chip are aligned with each other, and the transmission line means of the radar chip being electrically interconnected with the transmission line means of the substrate, wherein solder is formed on said portions of the transmission line means of the substrate and is fused with said respective portions of the transmission lines means of the radar chip. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification