US PATENT SUBCLASS 438 / FOR 301
.~ Diffusing a dopant (437/141)


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438 /   HD   SEMICONDUCTOR DEVICE MANUFACTURING: PROCESS

FOR 149  DF  INCLUDING FORMING A SEMICONDUCTOR JUNCTION (437/15) {7}
FOR 301.~ Diffusing a dopant (437/141) {17}
FOR 302  DF  .~.~> To control carrier lifetime, i.e., deep level dopant Au (Gold), Cr (Chromium), Fe (Iron), Ni (Nickel), etc. (437/142)
FOR 303  DF  .~.~> Al (Aluminum) dopant (437/143)
FOR 304  DF  .~.~> Li (Lithium) dopant (437/144)
FOR 305  DF  .~.~> Including nonuniform heating (437/145)
FOR 306  DF  .~.~> To solid state solubility concentration (437/146)
FOR 307  DF  .~.~> Using multiple layered mask (437/147) {1}
FOR 309  DF  .~.~> Forming partially overlapping regions (437/149)
FOR 310  DF  .~.~> Plural dopants in same region, e.g., through same mask opening, etc. (437/150) {1}
FOR 312  DF  .~.~> Plural dopants simultaneously in plural region (437/152)
FOR 313  DF  .~.~> Single dopant forming plural diverse regions (437/153) {1}
FOR 315  DF  .~.~> Using metal mask (437/155)
FOR 316  DF  .~.~> Outwardly (437/156)
FOR 317  DF  .~.~> Laterally under mask (437/157)
FOR 318  DF  .~.~> Edge diffusion by using edge portion of structure other than masking layer to mask (437/158)
FOR 319  DF  .~.~> From melt (437/159)
FOR 320  DF  .~.~> From solid dopant source in contact with substrate (437/160) {4}
FOR 325  DF  .~.~> From vapor phase (437/165) {3}


DEFINITION

Classification: 438/FOR.301

Diffusing a dopant:

Foreign art collection for processes for permeating an impurity into the semiconductor.