公开(公告)号：US3464805A

公开(公告)日：1969-09-02

申请号：US42280164

申请日：1964-12-31

Applicant: TEXAS INSTRUMENTS INC

Inventor： LANDRON RAFAEL JR

IPC: C03C27/02 ,  C23F1/16 ,  C23F1/18 ,  H01J9/32 ,  H01L21/50 ,  H01L23/047 ,  H01L23/495 ,  H01L23/498

CPC classification number: C03C27/02 ,  C23F1/16 ,  C23F1/18 ,  H01J9/32 ,  H01L21/50 ,  H01L23/047 ,  H01L23/49551 ,  H01L23/49579 ,  H01L23/49861 ,  H01L24/48 ,  H01L24/49 ,  H01L2224/05554 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/49171 ,  H01L2924/00014 ,  H01L2924/01014 ,  H01L2924/01019 ,  H01L2924/01079 ,  H01L2924/14 ,  H01L2924/15153 ,  H01L2924/15165 ,  H01L2924/16195 ,  H01L2924/00 ,  H01L2224/45099 ,  H01L2224/05599

Abstract: 1,126,713. Etching. TEXAS INSTRUMENTS. Inc. 31 Dec., 1965 [31 Dec., 1964], No. 55445/65. Heading B6J. [Also in Divisions C1 and H1] Copper is separated from a different metallic material by selective dissolution, the material to be separated being exposed to a nitric acid solution that will selectively attack copper at one concentration and will attack the other material at another concentration. Copper may be separated from its mixture with an iron-nickel-cobalt alloy by selectively removing the copper by use of a nitric acid concentration in excess of 10À5 N, preferably 12 N or greater, whilst the alloy can be removed by the use of a nitric acid concentration of 1À5 N.

公开(公告)号：US3514849A

公开(公告)日：1970-06-02

申请号：US79852368

申请日：1968-11-15

Applicant: TEXAS INSTRUMENTS INC

Inventor： LANDRON RAFAEL JR

IPC: C03C27/02 ,  C23F1/16 ,  C23F1/18 ,  H01J9/32 ,  H01L21/50 ,  H01L23/047 ,  H01L23/495 ,  H01L23/498 ,  H01L1/10

CPC classification number: H01J9/32 ,  C03C27/02 ,  C23F1/16 ,  C23F1/18 ,  H01L21/50 ,  H01L23/047 ,  H01L23/49551 ,  H01L23/49579 ,  H01L23/49861 ,  H01L24/48 ,  H01L2224/05554 ,  H01L2224/48091 ,  H01L2924/00014 ,  H01L2924/14 ,  H01L2924/15153 ,  H01L2924/15165 ,  Y10S228/903 ,  Y10T29/49121 ,  Y10T29/4913 ,  Y10T29/4981 ,  H01L2224/45099 ,  H01L2224/05599 ,  H01L2924/00

公开(公告)号：US3436605A

公开(公告)日：1969-04-01

申请号：US3436605D

申请日：1966-11-23

Applicant: TEXAS INSTRUMENTS INC

Inventor： LANDRON RAFAEL JR

IPC: H01L21/60 ,  H02B1/04

CPC classification number: H01L24/97 ,  H01L24/81 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/81801 ,  H01L2224/97 ,  H01L2924/01005 ,  H01L2924/01013 ,  H01L2924/01033 ,  H01L2924/01042 ,  H01L2924/01047 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/014 ,  H01L2924/09701 ,  H01L2924/14 ,  H01L2924/15311 ,  H01L2924/1532 ,  H01L2924/00014 ,  H01L2224/85