K x 2K Module Package

The 2Kx2K module package for VISTA is a reliable, robust 3-side buttable package which allows the fabrication of large mosaic arrays of 4Kx2nK format (see Fig. 1). Since each module is designed to be identical, all the modules are interchangeable. The module consists of an SCA mounted to a metal pedestal on which a thermal flex cable is mounted. A multilayer ceramic motherboard provides electrical connections between the SCA and the cable and also supports surface mount components including heaters, temperature sensors, resistors and capacitors. The module is designed to be easily integrated onto a platform with "plug-and-play" operation. This is accomplished with three simple interfaces: a mechanical interface which allows automatic alignment in x, y, and z through precision datums on the module pedestal; an electrical interface through a thermal flex cable with a 51-pin MDM connector; and a thermal interface which consists of a cold strap attachment to the back of the module pedestal. For VISTA, 16 modules are mounted in a 4x4 configuration on a "plate" to form the mosaic focal plane array. VISTA doesn't require butting of adjacent modules.

Motherboard

Sensor Chip

Assembly

Pedestal

Cable Clamp

45 Trace Cable

Motherboard

Sensor Chip

Assembly

Pedestal

Cable Clamp

Flatness requirement: Each detector (2K x 2K module) shall be flat to 12 pm

Figure 1. VISTA 2Kx2K module package.

Was this article helpful?

0 0
Telescopes Mastery

Telescopes Mastery

Through this ebook, you are going to learn what you will need to know all about the telescopes that can provide a fun and rewarding hobby for you and your family!

Get My Free Ebook


Post a comment