Patent ID: 11955512
Assignee: KEPLER COMPUTING INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 5:
6. The method of claim 1, wherein depositing the dielectric layer comprises:
using a second atomic layer deposition process to conformally deposit the ferroelectric material comprising:
one of bismuth ferrite (BFO) or BFO with a first doping material wherein the first doping
material is one of: lanthanum or elements from lanthanide series of periodic table;

lead zirconium titanate (PZT) or PZT with a second doping material, wherein the second doping material is one of La or Nb;
a relaxor ferroelectric material which includes one of: lead magnesium niobate (PMN), lead magnesium niobate-lead titanate (PMN-PT), lead lanthanum zirconate titanate (PLZT), lead scandium niobate (PSN), barium titanium-bismuth zinc niobium tantalum (BT-BZNT), or barium titanium-barium strontium titanium (BT-BST);
a perovskite material which includes one of: BaTiO3, PbTiO3, KNbO3, or NaTaO3;
a first hexagonal ferroelectric which includes one of: YMnO3 or LuFeO3;
a second hexagonal ferroelectric of a type h-RMnO3, where R is a rare earth element which includes one of: cerium (Ce), dysprosium (Dy), erbium (Er), europium (Eu), gadolinium (Gd), holmium (Ho), lanthanum (La), lutetium (Lu), neodymium (Nd), praseodymium (Pr), promethium (Pm), samarium (Sm), scandium (Sc), terbium (Tb), thulium (Tm), ytterbium (Yb), or yttrium (Y);

Hafnium (Hf), Zirconium (Zr), Aluminum (Al), Silicon (Si), their oxides or their alloyed oxides; Hafnium oxides of a form Hf(1-x)ExOy, where E includes one of: Al, Ca, Ce, Dy, Er, Gd, Ge, La, Sc, Si, Sr, Sn, Zr, or Y, wherein ‘x’ and ‘y’ are first and second fractions, respectively;
Al(1-x)Sc(x))N, Ga(1-x)Sc(x)N, Al(1-x)Y(x)N or Al(1-x-y)Mg(x)Nb(y)N, wherein ‘x’ and ‘y’ are third and fourth fractions, respectively;
HfO2 doped with one of: Al, Ca, Ce, Dy, Er, Gd, Ge, La, Sc, Si, Sr, Sn, or Y; or
niobate type compounds LiNbO3, LiTaO3, lithium iron tantalum oxy fluoride, barium strontium niobate, sodium barium niobate, or potassium strontium niobate; or
an improper ferroelectric material which includes one of: [PTO/STO]n or [LAO/STO]n, where ‘n’ is between 1 to 100, wherein the second atomic layer deposition process is carried out at a temperature between 160 and 400 degrees Celsius.