公开(公告)号：US3669769A

公开(公告)日：1972-06-13

申请号：US3669769D

申请日：1970-09-29

Applicant: IBM

Inventor： BADAMI ANGELO V ,  EBERT EKKEHARD ,  KEMLAGE BERNARD M ,  KROELL KARL E ,  POGGE H BERNHARD

IPC: C30B25/02 ,  H01L21/205 ,  H01L21/22 ,  H01L7/36 ,  C23C13/00

CPC classification number: C30B29/06 ,  C30B25/02 ,  C30B29/08 ,  H01L21/02381 ,  H01L21/02532 ,  H01L21/0262 ,  H01L21/2205 ,  Y10S148/007 ,  Y10S148/037 ,  Y10S148/145 ,  Y10S438/916

Abstract: AUTODOPING IS MINIMIZED DURING THE GROWTH OF AN EPITAXIAL LAYER OF A SEMICONDUCTOR SUBSTRATE BY USING A GASEOUS REACTION MIXTURE THAT DEPOSITS THE INITIAL CAPPING LAYER AT A RELATIVELY SLOW DEPOSITION RATE. THE REACTION MIXTURE CONTAINS A RELATIVELY MINOR PORTION OF A SEMICONDUCTOR COMPOUND ALONG WITH THE CARRIER GAS. SUBSEQUENTLY, A SECOND GASEOUS REACTION MIXTURE CONTAINING A GREATER PORTION OF A COMPOUND OF A SEMICONDUCTOR MATERIAL IS USED TO COMPLETE THE DEPOSITION OF THE EPITXIAL LAYER. THIS IS DONE MERELY TO REDUCE THE TOTAL GROWTH CYCLE.

公开(公告)号：US3421956A

公开(公告)日：1969-01-14

申请号：US43691865

申请日：1965-03-03

Applicant: IBM

Inventor： EBERT EKKEHARD ,  SPIELMANN WERNER

IPC: C04B41/53 ,  H01L21/04 ,  H01L7/62 ,  C23F1/00

CPC classification number: C04B41/5361 ,  H01L21/0475