What is TSV (through-silicon via)?

TSV (through-silicon via) in the explanations

• A TSV (Through-Silicon Via) is an electrode made by drilling a hole in the silicon substrate and filling it with conductor, electrically connecting the front and back of the substrate.

  Which correctly describes a TSV (through-silicon via)?

• A TSV is made by etching a hole in silicon by deep etching (such as the Bosch process), forming an insulating film, barrier layer and seed layer on the inside of the hole, then filling it with copper or similar by plating.

  Which correctly describes the typical TSV formation process?

• Tiers connect through vias tens of nm in size—over ten thousand times denser than TSV-based die stacking.

  Which 3D integration method builds transistor layers one af…

Questions that mention TSV (through-silicon via) (7)

1. Which correctly describes a TSV (through-silicon via)?
2. Which correctly describes the typical TSV formation process?
3. When a TSV wafer is thinned to tens of micrometers and processed, which technique temporarily attaches it to a support wafer (carrier) to prevent cracking and warpage?
4. Which 3D integration method builds transistor layers one after another on the wafer, without bonding chips?
5. Which correctly describes deep RIE (the Bosch process) used in MEMS fabrication?
6. Advanced packaging steps that use front-end-like fine processing at the wafer level, such as forming TSVs and fine redistribution layers, sit between the front end and back end. What are they called?
7. What is the main reason for setting a keep-out zone around TSVs where no transistors are placed?

Related terms

Bosch process (deep RIE) Wire bonding 3D packaging HBM Seed layer MEMS Plasma Mobility 2.5D packaging Chiplet