Request for Critical Components for MBE and MOVCD to Pursue High Purity GaN at Virginia Microelectronics Center (VMC)
Abstract
A Lake Shore Model 7504 variable temperature Hall measurement apparatus was procured and installed in August 2000. The system has been in use for nearly a year now and has already become a indispensable component of our research effort. Since the funds provided were not sufficient for a brand new one, we opted to purchase a laboratory model with warranty identical to that for a standard system. The apparatus is able to automatically collect Hall data in a temperature range of 10-300K and under magnetic fields up to about 8 KGauss. The IDEAS Hall Application Software is very user friendly and optimum for doing the necessary initial trial and error runs to obtain reliable data. The lack of such a software in home made systems in the past led to erroneous data which often times made into publications as well. The apparatus included instrument rack, 4"electromagnet, power supply and mounting hardware, and cabling; Keithley Models 7065 Hall effect card 7001 Switch system, 220 current source, 182 voltmeter, 480 picoammeter; Lake Shore Models Temperature controller, 450 Gaussmeter and 75013 RT/77K Sample Holder Module. New Computer and 17" monitor with IEEE-488 card IDEAS Hall Application Software. In house 75014 Closed Cycle Refrigerator Sample module and APD Compressor and came with a full 12 month manufacturer warranty. The system price also included a two-day installation and training charge. The total cost of acquisition was $95,000.00
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 25, 2001
- Accession Number
- ADA396738
Entities
People
- Hadis H. Morkoç̌
Organizations
- Virginia Commonwealth University