Abstract
Techniques to obtain high isolation property in a multi-chip module (MCM) between pads of a SiGe-MMIC flip-chipped on a low temperature co-fired ceramic (LTCC) are discussed. In such a MCM, there are two coupling paths. One is a path through the LTCC and the other is a path through the MMIC. To improve the total isolation property, structures to reduce the two coupling paths are required because the paths of such leaks are not in series but in parallel. We examined disposition of several kinds of ground patterns on the LTCC. Also, we devised a metal plate on a bias circuit as a shielding structure on the SiGe-MMIC. The effectiveness of the isolating structures was verified by measuring IIP2 in a receiver MCM with a direct conversion SiGe-MMIC. The IIP2 property has been improved successfully as well as the isolation property.
| Original language | English |
|---|---|
| Pages (from-to) | 1385-1388 |
| Number of pages | 4 |
| Journal | IEEE MTT-S International Microwave Symposium Digest |
| Volume | 3 |
| Publication status | Published - 2002 Jan 1 |
| Externally published | Yes |
| Event | IEEE MTT-S International Microwave Symposium Digest - Seattle, WA, United States Duration: 2002 Jun 2 → 2002 Jun 7 |
ASJC Scopus subject areas
- Radiation
- Condensed Matter Physics
- Electrical and Electronic Engineering