1. Centro Astronómico de Yebes Observatorio Astronómico Nacional HIFI CAY 15/04/03SRON (Groningen)1 First Stage Cryogenic IF Amplifier Carmen Diez

2. Centro Astronómico de Yebes Observatorio Astronómico Nacional HIFI CAY 15/04/03SRON (Groningen)2 OUTLINE DM Program (Yebes) –Amplifiers (4-8 GHz) –Isolators –Isolator-Cable-Amplifier QM & FM Programs (Transfer to Industry) –First Prototype (4-8 GHz) Qualification Program –Qualification Boards –EMC, ESD, Radiation, Bake-out Programmatic/financial concerns Planning Open Issues & Summary

3. Centro Astronómico de Yebes Observatorio Astronómico Nacional HIFI CAY 15/04/03SRON (Groningen)3 HIFI YCF 6004 m=65 g 58 x 32 x 15 mm

4. Centro Astronómico de Yebes Observatorio Astronómico Nacional HIFI CAY 15/04/03SRON (Groningen)4 HIFI YCF 6000 (Noise and Gain)

5. Centro Astronómico de Yebes Observatorio Astronómico Nacional HIFI CAY 15/04/03SRON (Groningen)5 HIFI YCF 6000 (I/O Reflection)

6. Centro Astronómico de Yebes Observatorio Astronómico Nacional HIFI CAY 15/04/03SRON (Groningen)6 HIFI YCF 6000 (Gain Stability)

7. Centro Astronómico de Yebes Observatorio Astronómico Nacional HIFI CAY 15/04/03SRON (Groningen)7 HIFI YCF 6000 (Results)

8. Centro Astronómico de Yebes Observatorio Astronómico Nacional HIFI CAY 15/04/03SRON (Groningen)8 Isolators: Measurements

9. Centro Astronómico de Yebes Observatorio Astronómico Nacional HIFI CAY 15/04/03SRON (Groningen)9 Isolators: P erformance

10. Centro Astronómico de Yebes Observatorio Astronómico Nacional HIFI CAY 15/04/03SRON (Groningen)10 Isolators measured @ 14 K (PAMTECH gives data @ 77 K) Good agreement between measurement and estimation of isolator noise Mean contribution 1.1 – 1.4 K Isolators

11. Centro Astronómico de Yebes Observatorio Astronómico Nacional HIFI CAY 15/04/03SRON (Groningen)11 QM & FM PROGRAMS (First Prototype)

12. Centro Astronómico de Yebes Observatorio Astronómico Nacional HIFI CAY 15/04/03SRON (Groningen)12 QM & FM PROGRAMS (First Prototype)

13. Centro Astronómico de Yebes Observatorio Astronómico Nacional HIFI CAY 15/04/03SRON (Groningen)13 QUALIFICATION PROGRAM (Boards) Resistors, Capacitors and Transistors glued Resistors and Capacitors soldered Capacitors glued

14. Centro Astronómico de Yebes Observatorio Astronómico Nacional HIFI CAY 15/04/03SRON (Groningen)14 QUALIFICATION PROGRAM EMC: Bias circuit already set ESD: “ESD Tests on InP HEMT Transistors” Yebes/FPSS/TN/2002-014 Radiation: Tests carried out successfully Bake-out: Vacuum pre-qualification bake-out held (3 days at 83ºC). No influence found in the IF1 unit calibration

15. Centro Astronómico de Yebes Observatorio Astronómico Nacional HIFI CAY 15/04/03SRON (Groningen)15 PROGRAMMATIC/FINANCIAL CONCERNS 1 Contract signed: 2 QMs (Qual) (4-8 GHz) 2 QMs (Accep) (4-8 GHz) 7 FMs (4-8 GHz) 2 Contracts to be signed: 2 DMs (2.4-4.8 GHz) 4 FMs (2.4-4.8 GHz) 3 FMs (4-8 GHz) Funding for year 2003 has been approved but only about 1/3 of it has been delivered !!! 5 FSs (4-8 GHz) 2 FSs (2.4-4.8 GHz)

16. Centro Astronómico de Yebes Observatorio Astronómico Nacional HIFI CAY 15/04/03SRON (Groningen)16 CRYO IF1 (4-8 GHz) AMPLIFIER-HIFI PLANNING

17. Centro Astronómico de Yebes Observatorio Astronómico Nacional HIFI CAY 15/04/03SRON (Groningen)17 OPEN ISSUES & SUMMARY Qualification Boards to be repaired and qualified IF1 CDR to be held Structures, Substrates and Components (with the exception of the 18nF capacitors) prepared for the fabrication of the QM units QM Isolators to be delivered by PamTech Isolator position to be defined Environmental tests to be defined completely IF1 low (2.4-4.8 GHz) prototype to be fabricated and the design transferred to the industry A new contract with industry to be signed

18. Centro Astronómico de Yebes Observatorio Astronómico Nacional HIFI CAY 15/04/03SRON (Groningen)18 OPEN ISSUES & SUMMARY (Cont.) Isolator Specification to be prepared BA CNIG-SRON for the QMs, FMs and FSs to be prepared and signed

19. Centro Astronómico de Yebes Observatorio Astronómico Nacional HIFI CAY 15/04/03SRON (Groningen)19

20. Centro Astronómico de Yebes Observatorio Astronómico Nacional HIFI CAY 15/04/03SRON (Groningen)20 PA/QA (Qualification) Performance tests at 15K 25 cryogenic cycling between RT and 15K 5 warm cycling between RT and 80ºC 144 hrs. extended bake-out at 80ºC Vibration (sine/random) at 77K 25 cryogenic cycling between RT and 15K Performance tests at 15K

21. Centro Astronómico de Yebes Observatorio Astronómico Nacional HIFI CAY 15/04/03SRON (Groningen)21 PA/QA (Acceptance) Performance tests at 15K 3 cryogenic cycling between RT and 15K Vibration (sine/random) at RT Performance tests at 15K

22. Centro Astronómico de Yebes Observatorio Astronómico Nacional HIFI CAY 15/04/03SRON (Groningen)22 Industry: ALCATEL Clean room for assembly Cryostat (property of OAN) for measurements Specialized in production for space (strict QA) Experience with HERSCHEL amplifiers

23. Centro Astronómico de Yebes Observatorio Astronómico Nacional HIFI CAY 15/04/03SRON (Groningen)23 Industry: TTI Bonding machine Experience in cryostats Complete receiver with S/X cryogenic amplifiers delivered to Finland 8.4 K @ 8.4 GHz with Fujitsu devices (20  h  k)

24. Centro Astronómico de Yebes Observatorio Astronómico Nacional HIFI CAY 15/04/03SRON (Groningen)24 Microwave Capacitors at Cryogenic Temperature

25. Centro Astronómico de Yebes Observatorio Astronómico Nacional HIFI CAY 15/04/03SRON (Groningen)25 TRW T-42 CRYO3  200×0.1 μm gate  Best performance TRW T-45 CRYO4  200×0.1 μm gate  Used in DMs  Space qualifiable, to be used in FMs  CHOP developed ETH T-35  200×0.2 μm gate  Experimental transistor  Design by request  Used in MPAs 0.22 mm 0.19 mm Transistors