1. Standardized CCD and MCT detector mounting configurations B. C. Bigelow, UM Physics 2/2/05

2. 2 2/3/05Bruce C. Bigelow -- UM Physics Common detector packages Objectives: 1.Build on previous UM focal plane work (see BSCW or http://www.physics.lsa.umich.edu/bigelow/snap/index.html) 2.Standardize visible and IR detector package details including: Package to focal plane mechanical interface – 3 point contact Electrical connectors Filter mounts 3.Accommodate detector package CTE differences 4.Enable multiple material choices for focal plane base plate 5.Follow the HDH focal plane specifications Acknowledgements: Heritage from GL Scientific H2RG package – Thanks Gerry Luppino!

3. 3 2/3/05Bruce C. Bigelow -- UM Physics This presentation Outline Why Hypertronics connectors? Standardized visible package Standardized IR package

4. 4 2/3/05Bruce C. Bigelow -- UM Physics Electrical connectors Hypertronics Corp. is a division of Smiths Group (UK) US offices in Hudson, MA, and St. Louis (custom designs) Multiple space-rated connector options: 1.KA series - 2/3 row style, 0.6mm pins (4A), 2.54mm staggered pitch 2.KA series - 4/5 row style, 0.6mm pins (4A), 2.54mm square pitch 3.HPH series – multi rows, 0.6mm pins (4A), 1.905mm staggered pitch Multiple material choices: 1.KA series – Diallyl –Phthalate standard 2.HPH series – Polyphenylene Sulphide 3.PEEK is a common option (oil field connectors) 4.Various glass-filled PEEK options are available 5.Testing required for 140K operation? Custom connectors are regular part of Hypertronics business

5. 5 2/3/05Bruce C. Bigelow -- UM Physics Hypertronics connectors HPH series connectors for military/aerospace markets:

6. 6 2/3/05Bruce C. Bigelow -- UM Physics Hypertronics connectors HPH series, 0.6mm pins, 1.905mm pitch

7. 7 2/3/05Bruce C. Bigelow -- UM Physics Hypertronics connectors KA series connectors for test equipment markets: HPH and KA series both use Hypertac sockets

8. 8 2/3/05Bruce C. Bigelow -- UM Physics Hypertronics connectors KA series, 0.6mm pins, 2.54mm pitch

9. 9 2/3/05Bruce C. Bigelow -- UM Physics Standardized CCD packages Familiar silicon / AlN / Invar sandwich Hypertronics custom HPH series connector GL Scientific H2RG package features —Height adjustment via precision spacers —Precision diameter locating studs —Belleville disc springs for preload to focal plane Athermal PCB interface to CCD, connector Familiar Invar filter frame, aperture mask, and mount Detector package and local electronics concept shown

10. 10 2/3/05Bruce C. Bigelow -- UM Physics Standardized CCD packages

11. 11 2/3/05Bruce C. Bigelow -- UM Physics Standardized CCD packages HPH 62 pin custom connector KA 62 pin custom connector

12. 12 2/3/05Bruce C. Bigelow -- UM Physics Standardized CCD packages

13. 13 2/3/05Bruce C. Bigelow -- UM Physics Standardized CCD packages

14. 14 2/3/05Bruce C. Bigelow -- UM Physics Standardized CCD packages CCD package with local electronics (cric etc.)

15. 15 2/3/05Bruce C. Bigelow -- UM Physics Standardized MCT packages Familiar Moly package Hypertronics custom HPH connector GL Scientific H2RG features —Height adjustment via precision spacers —Precision diameter locating studs —Belleville disc springs for preload to focal plane Athermal PCB interface to CCD, connector Familiar Moly filter frame, aperture mask, and mount Detector package and local electronics concept shown

16. 16 2/3/05Bruce C. Bigelow -- UM Physics Standardized MCT packages

17. 17 2/3/05Bruce C. Bigelow -- UM Physics Standardized MCT packages

18. 18 2/3/05Bruce C. Bigelow -- UM Physics Standardized MCT packages

19. 19 2/3/05Bruce C. Bigelow -- UM Physics Standardized MCT packages

20. 20 2/3/05Bruce C. Bigelow -- UM Physics Standardized MCT packages MCT package with local electronics (SIDECAR etc.)

21. 21 2/3/05Bruce C. Bigelow -- UM Physics Common detector packages Conclusions: 1.Standardized visible and IR detector package designs shown 2.Mountings enable alternate material choices for focal plane base plate 3.Designs follow HDH focal plane specs (mostly!) 4.Belleville disc spring preloading enables baseplate material choices 5.Intermixing of CCD and MCT detectors remains an open issue: What is minimum allowable gap between packages? Does detector readout direction influence orientation in focal plane?