What is double patterning in FinFET?
The process splits dense patterns into two interleaved patterns of less-dense features, defined by two masks. However, a competing technique, self-aligned double patterning (SADP) can support finer pitches because it does not suffer as badly from misaligned masks.
Why does Intel still use 14 nm?
After Intel found its 10nm node was unsuitable for desktop chips, it decided to continue updating desktop on 14nm while saving initial 10nm production runs for server and laptop chips. Intel’s 10nm process node was delayed multiple times, which left the company stuck on 14nm for much longer than it ever anticipated.
What does 14nm architecture mean?
The 14 nanometer (14 nm) lithography process is a semiconductor manufacturing process node serving as shrink from the 22 nm process. The term “14 nm” is simply a commercial name for a generation of a certain size and its technology, as opposed to gate length or half pitch.
What is self-aligned double patterning?
Description. Self-aligned double patterning (SADP) is a form of double patterning. It is sometimes referred to as pitch division, spacer or sidewall-assisted double patterning. The SADP process uses one lithography step and additional deposition and etch steps to define a spacer-like feature.
How do you fix DPT violations?
The violation can be fixed by either increasing a spacing so as to break the cycle, or by removing a polygon completely, either breaking the cycle or making the cycle even (which is not a problem since it can be colored).
What is self-aligned quadruple patterning?
Self-aligned quadruple patterning (SAQP) SADP may be applied twice in a row to achieve an effective pitch quartering. This is also known as self-aligned quadruple patterning (SAQP).
What is DPT layer?
The key idea of DPT is to decompose a single layout into two masks in order to increase pitch size and improve depth of focus (DOF) [9], [15]. In DPT, one single layer can be decomposed into two masks to effectively increase pitch size [1].
What is 14nm Logic Technology?
A 14nm logic technology featuring 2nd-generation FinFET, air-gapped interconnects, self-aligned double patterning and a 0.0588 µm2 SRAM cell size
What is double patterning in 193nm lithography?
Double patterning is another technique used to extend the useful lifetime of 193nm lithography. The process splits dense patterns into two interleaved patterns of less-dense features, defined by two masks.
What is the double patterning technique?
Double patterning is a technique used in the lithographic process that defines the features of integrated circuits at advanced process nodes. It will enable designers to develop chips for manufacture on sub-30nm process nodes using current optical lithography systems. The alternative is to wait for the development…
What is a 14 nm chip?
All 14 nm nodes use FinFET (fin field-effect transistor) technology, a type of multi-gate MOSFET technology that is a non-planar evolution of planar silicon CMOS technology. Samsung Electronics taped out a 14 nm chip in 2014, before manufacturing ” 10 nm class” NAND flash chips in 2013.
