User`s manual
Lake Shore MTD Series Cryotest System User’s Manual
Table of Contents i
TABLE OF CONTENTS
Chapter/Paragraph Title Page
1 INTRODUCTION ....................................................................................................................................1-1
1.0 General................................................................................................................................1-1
1.1 MTD Cryotest System General Description.........................................................................1-1
1.1.1 MTD Cryotest System Application.......................................................................................1-4
1.1.2 Easy Access to Device Test Area .......................................................................................1-4
1.1.3 Interchangeable Fanout Boards Accommodate Virtually Any Device Package ..................1-4
1.1.4 Rapid Temperature Cycling Capability ................................................................................1-5
1.1.5 Superior Vacuum Characteristics ........................................................................................1-5
1.1.6 High Signal Quality ..............................................................................................................1-5
1.1.7 1520K Device Test Assembly Kit ........................................................................................1-5
1.1.8 Superior Optical Performance .............................................................................................1-5
1.1.9 Precise Monitoring and Control of Temperature Over A Wide Range ................................1-7
1.2 Hardware Descriptions and Functions................................................................................. 1-7
2 UNPACKING AND INSPECTION...........................................................................................................2-1
2.0 General................................................................................................................................2-1
2.1 Inspection and Unpacking ...................................................................................................2-1
2.2 Repackaging For Shipment................................................................................................. 2-1
2.3 General Installation Precautions.......................................................................................... 2-1
2.4 Electrostatic Discharge........................................................................................................2-2
2.4.1 Identification of Electrostatic Discharge Sensitive Components .........................................2-2
2.4.2 Handling of Electrostatic Discharge Sensitive Components ...............................................2-2
2.5 Safety Summary .................................................................................................................. 2-3
2.6 Safety Symbols....................................................................................................................2-4
3 INSTALLATION......................................................................................................................................3-1
3.0 General................................................................................................................................3-1
3.1 Environmental Requirements ..............................................................................................3-1
3.2 System Power and Ground Requirements .......................................................................... 3-2
3.3 Physical Support Requirements ..........................................................................................3-2
3.4 Liquid Cryogen.....................................................................................................................3-2
3.5 Storage Dewar Pressurizing................................................................................................3-2
3.6 Exhaust Gas Heater ............................................................................................................3-3
3.7 Instrumentation Hookup Instructions...................................................................................3-3
3.8 Miscellaneous Precautions..................................................................................................3-5
3.9 Inserting A Device Under Test (DUT)..................................................................................3-6
3.10 Changing The Fanout Board ...............................................................................................3-6
3.11 How To Change The Test Set Assembly ............................................................................3-8
4 OPERATION...........................................................................................................................................4-1
4.0 General................................................................................................................................4-1
4.1 MTD System Operation .......................................................................................................4-1
4.2 MTD System Shutdown.......................................................................................................4-4
5 TROUBLESHOOTING ...........................................................................................................................5-1
5.0 General................................................................................................................................5-1
5.1 No Cryogen Flow and No Cooling .......................................................................................5-1
5.2 Cryogen Flow But No Cooling .............................................................................................5-1
5.3 Water Condenses On Outer Surface Of Vacuum Chamber ...............................................5-1
5.4 Instability In Maintaining Selected Temperature..................................................................5-1