IMPROVED ION-IMPLANTED GaAs DEVICES

申请公布号：WO1989000336(A1)

申请号：GB1988000497

申请日期：1988.06.27

申请公布日期：1989.01.12

摘要：<p>The invention provides a means of improving the threshold voltage uniformity of ion-implanted GaAs MESFETs by using co-implantation of two dopant species rather than the normal situation where only one dopant species is used. The two dopant species are chosen so that the effects on activation of stoichiometric changes in the substrate are in opposite senses - thus stoichiometric effects on total activation (and thus on threshold voltage of devices) are reduced or eliminated.</p>

DEVICE FOR MANUFACTURING PRESS POTS

MEDIUM-VOLTAGE OR HIGH-VOLTAGE SWITCHGEAR ASSEMBLY

PHARMACEUTICAL FOAMS

COMPOUND STEERING MECHANISM

NOVEL 2-SUBSTITUTED THIAZOLE-4-CARBOXAMIDE DERIVATIVES, PRODUCTION THEREOF, AND USE THEREOF AS A MEDICAMENT

MACHINE FOR IN-DEPTH PRINTING ON A POLYESTER PILE LAYER CARPET COVERING AND ASSOCIATED METHOD OF OPERATION

METHOD AND APPARATUS FOR WEIGHING PRODUCTS

HEAD-MOUNTABLE LOUPE

CYCLIC, CYSTEIN-FREE PROTEIN

HOLDING DEVICE FOR A POSTER-SHAPED INFORMATION SUPPORT

ASSEMBLY FOR ROTATING A CUTTING INSERT DURING A TURNING OPERATION AND INSERTS USED THEREIN

INDUCTIVE POSITION SENSOR

DIFFERENTIAL BRAKING ALERT SYSTEM AND METHOD

MEASUREMENT APPARATUS AND METHOD

DRY COMPOSITE FOR INDOOR SKIN, PRODUCTION AND USE THEREOF

DOSE REDUCTION OF A CANNABINOID CB1 RECEPTOR ANTAGONIST IN THE TREATMENT OF OVERWEIGHT OR OBESITY

ANTIBACTERIAL CONDENSED THIAZOLES

FLOATING CARRIER FOR OIL PRODUCTION, WITH ICE-SHELF DESTRUCTION DEVICES, AND ASSOCIATED METHOD

METHOD FOR DETERMINING THE MASS OF FLUID IN A CRYOGENIC TANK AS WELL AS THE MASS FLOW OF THE FLUID USED

APPARATUS WITH AMBIENT MAGNETIC FIELD CORRECTION