
If you're interested in VLSI, please refer to this post. One advice upfront, this field predominantly has employees with masters degree so keep that in mind. On bachelor's level, I got a software internship in ATE testing and my friends got hardware (on campus)
As everyone would know, at bachelor's level, there are lesser companies coming for on campus placements for VLSI and other Semiconductor Technology roles.
If you're invested in preparing for Higher studies, prepare a lot for circuital roles in VLSI and look into M.Engg in Semiconductor Technology at IISc Bangalore. It's a one year course with good placements in foundry roles and a small portion of students bag circuital roles through extra prep.
Obviously IISc Bangalore M.Tech in CeNSE is one of the best in the country and IIT Madras MVLSI and ICS are two of the best. You can also target NITK Surathkal Communication and target VLSI roles.
Semiconductor Technology has subfields: Fabless, Foundry, OSAT, IDM, Semiconductor Equipment, EDA, Semiconductor IP.
The on campus software internship i got was in SemiTech testing, basically ATE machines and automation. In that, you have lots of stuff like before a chip is packaged, you have a check called wafer sort test that tests silicon wafers and final test that checks for electrical functionalities.
During my internship, I learnt about ATE machines, different types of tests in ATE, the whole assembly line of ATE and how some companies use the same individual components but the assembly line is confidential.
Then, after encountering SoC chips with cool data and memory lines like MOSI, MISO, my work on the software side started 🥲
(The campus from which you hail would almost surely have a Centre for VLSI, you can go there and maybe take up a project if interested.) If not, look for a few simulation projects and Cadence certifications. Don't go for online degrees or certifications from random companies, look out for Cadence, STMicroelectronics, ARM.
Here are a few interview questions for VLSI to get you started on the prep or augment it.