US 7,592,642 B1
Thyristor-based semiconductor device with indium-carbon implant and method of fabrication
Srinivasa R. Banna, San Jose, Calif. (US); and James D. Plummer, Portola Valley, Calif. (US)
Assigned to T-RAM Semiconductor, Inc., Milpitas, Calif. (US)
Filed on Apr. 04, 2006, as Appl. No. 11/398,398.
Application 11/398398 is a continuation in part of application No. 10/670881, filed on Sep. 25, 2003, granted, now 7,075,122.
Application 10/670881 is a continuation in part of application No. 10/958820, filed on Oct. 04, 2004, granted, now 7,195,959.
Int. Cl. H01L 29/72 (2006.01)
U.S. Cl. 257—107  [257/119; 257/131; 257/148; 257/156; 257/167; 257/297] 17 Claims
OG exemplary drawing
 
1. A semiconductor device, comprising:
a thyristor formed in semiconductor material, the thyristor comprising at least one base region having normal acceptor-type dopant; and
complexes defined at least in part by atomic pairing of a high ionization energy acceptor and an activation species in a portion of the semiconductor material including at least a portion of the base region, wherein the high ionization energy acceptor is different from the normal acceptor-type dopant and of ionization energy greater than that of the normal acceptor-type dopant.