Shilpi Pandey

4 Questions 4 Answers 0 Followers

Questions related from Shilpi Pandey

Do we need adhesion layer for aluminium deposition on Lithium Niobate (LN) substrate?

For Silicon, we need stack layer (Ti/TiN) to avoid diffusion of Al inside silicon. But do we need adhesion layer for LN substrate? I tried Al electrode patterning with wet etching method, without...

03 October 2023 3,251 0 View

Need a suggestion regarding voltage and power conversion in RF device?

I have measured voltage of one port RF device which was 53 vpp and return loss was -6.3 dB at frequency 7.3 MHz. Now I want to convert voltage into power in watt. So I think I should first get the...

29 August 2023 8,731 3 View

We have Al2O3 wafer which we want to etch. I am looking for commercial etcant and found TechniEtch Al80 from microchemical. Does anyone use?

We have to create a cavity inside wafer. Here is the link for detail of the etchant : https://www.microchemicals.com/technical_information/wet_etching_metals_al_au_cu_cr_ni_ti_ag.pdf It contains...

29 July 2023 1,936 1 View

What is apodising and unapodising IDT in SAW devices?

Apodising IDT is when aperture is varying throughout the IDT, and unapodising is when aperture is constant. Is it so? can someone correct me if I am wrong? Thanks in advance! Shilpi

22 February 2023 825 2 View