Bundelkhand Institute Of Engineering And Technology Tender

Thin film coating unit with thickness meter and rotary pump Specification: To deposit the films of different materials on the substrate High Vacuum Thin Film Vacuum Coating Unit Technical Specifications 1. Direct Drive Rotary Pump model HPVT 250 is having the special quiet & Vibration free positive anti-suck back with in built, compact & Light weight, capacity with free air displacement. 1.a Capacity - 250LPM 1.b Meter Cube per hour - 15 1.c Ultimate vacuum when measure on a Mcleod Gauge with Gas ballast closed - 1 x 10-3 mbar 1.d Ultimate vacuum when measure on a Mcleod Gauge with Gas ballast opened - 5 x 10-2 mbar 1.e Inlet connection - KF 25 1.f Motor - HP motor Single Phase 1/2 2. Oil diffusion pump 2.a Nominal Diameter - 114 mm 2.b Ultimate Vacuum - 1 x 10-6 mbar 2.c Eddective Pumping speed - 280 lit/sec 2.d Critical Backing Pressure - 3.5 X 10-1 2.e Type of jet - Fractionating 2.f No OF Stages - 5 2.g Oil charge - 100cc 2.h Heater Rating - 500 Watts 2.i Water @ 20 to 25 deg. C -3 to 4 (litre/min) 3. Plumbing Lines & Valves 3. a A high Vacuum Valve of 4 1/2" (SS) size to provide to achive maximum through put from the pump and provides isolation of the diffusion pump from exposing it to atmosphere when the chamber/load is exposed to atmosphere. The valve should be conveniently placed for easy operation. Plumbing lines are made of stainless steel of 1" NB that incorporate 2nos of butterfly valve. Air admittance & Needle valves through this needle valve one can adjust the flow rate. 4. VACUUM MEASURING GAUGES 4.a Stabilized Analog pirani gauge with two pirani gauge heads needs to be provided to independently monitor the roughing (Chamber) and backing pressure. Vacuum in the job or pipe line needs to be seen on the gauge display using a selector switch. This pirani gauge should measure vacuum level from 0.5mbar to 0.001mbar. 4.b Stabilized Penning gauge with one gauge head is provided to monitor high vacuum on a seperate Penning meter in two ranges, from 1 x 10-3 to 1 x 10-5 & from 2 x 10-5 to 1 x 10-6 mbar. 5. High Vacuum Chamber For Coating 5.a High Vacuum Chamber (Metal Bell Jar) is a cylindrical construction fabricated out of non-magnetic stainless steel SS-304 having dimension of dia meter 300mm x 400mm height. 5.b Water cooling and view port window for clear observation of the process inside the Bell jar and provided with L- gasket to achieve vacuum sealing of the chamber flange. 6. Manual Chamber Lifting 7. Base Plate & Gadgetry 7.a A base plate of 13" diameter made out of ss 304 material, finely ground & electro chemically polished to achieve a fine surface is needed. Chamber gadgetry made of stainless steel, conducting parts made out of electrolytic copper & insulating parts made out of teflon. 8. LT Evaporation Feed Through ( Filament holder) 8.a Two Set of LT evaporation electrical feed through are needed 8.b Made out of electrolytic pure copper having 200 Amps current carrying capacity 9. Evaporation Source Holder 9.a One set for central evaporation. These can accept Filament/basket/Boat Evaporation Sources. 10. Supporting Frame 10.a Three stainless steel pillars fitted to the base plate to support the SS works holder ring on which aluminum spherical or flat work holder is placed. 10.b A stainless steel mesh filter covering the pumping port to protect the diffusion pump from entry of un-wanted particles is needed. 10.c A dummy plate made ut off SS is mounted above the mesh filter & fixed to the base plate using three pillars is needed. 10.d All the chamber gadgetry ( except those used for electrical conduction, insulation, flat & spherical work holder) offered inthis system is made out of AISI-304 stainless steel & work holder are made out of aluminum. 11. Electrical 11.a The unit is wired & supplied for the operation on 220V AC, 50Hz. Single Phase Power supply. 11.b LT Power Supply - A Transformer capable of delivering 200Amps at 10 volts, intermittent & 100Amps at 20Volts. should be in corporated in the system. 11.c LT Control - An Thyristor drive with Potentiometer to vary the voltage & current. 11.d Meters - Separate meters for LT current readout. Meter should read primary current and secondary current through current transformer. 11.e Indicator Lamps - Glow lamps to indicate ON/OFF status of Rotary Pump, Diffusion Pump, LT and other accesories 11.f Power connection - 2 meters long 1.5 amps 3 core wire chord with plug 12. Mounting 12.a Housed in a frame made up of MS material. Frame to be powdered coated for dust-free operation. 12.b Anitvibration mounts for rotary vacuum pump 12.c Vibration damping flexible corrugated bellow(SS304) of convenient lenght 13. Ultimate Vacuum 13.a Vacuum range of 10-6 mbar, when the chamber degassed & diffusion pump is supplied with water at 15-20 deg. C, 24 PSI Pressure & Flow rate of 1-2 lit/min. 14. Digital Thickness Monitor 14.a Rate Display - 3 Digit LED Auto Ranging from 0.00 to 999 kilo-Angstorm/sec 14.b Thickness Display - 4 digit LED display 14.c Crystal Frequency - 6 MHz 14.d Film density - 0.800 to 99099 gm/cubic cm 14.e Size - 220mm widths x 230 mm depth x 93 mm height 15. Substrate Heater 15.a Temperature - 450 degree C 15.c Thermocouple 15.d Heater Power Supply

Physics and Chemistry Laboratory

Particle size measurement Specification : Diffraction grating - Size 89x38 mm, aperture size : 16x9 mm, rulling: 100,300,100 lines/mm He- Ne Laser - Working current : 4mA-6mA, input power : 2W, output power : 2mW Kycopodium Powder