TABLE II.
Lookup Table for (in micrometers) With Boron Implantation. The First Number Given Is for a Typical Process With 1500-Å Wet Isolation Oxide With N2 Annealing, While Values in Parentheses Are for Inert (N2) Annealing Alone. The Wet Isolation Oxide Was Grown at the Indicated Process Temperature for 66-, 15-, and 5-min Oxidation Time for 900 °C, 1000 °C, and 1100 °C, Respectively, and the Wafer Is Then Annealed at the Same Process Temperature for the Time Indicated in the Table. β* of Piezoresistive Device Is Calculated Using (17). For Example, β* of 10-µm-Thick Device With 2·1015 cm−2 Implantation Dose at 50 keV and a 30-min N2 Anneal At 1000 °C Is 0.53 From
Implantation Dose (cm−2) |
Implantation Energy (keV) |
Annealing Temp (°C) |
Annealing Time (min) | ||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
15 | 30 | 45 | 60 | 75 | 90 | 105 | 120 | ||||||||||||||||||||||||
900 | .84(.74) | .19(.09) | .84(.73) | .19(.09) | .84(.72) | .19(.09) | .84(.72) | .19(.09) | .84(.72) | .19(.09) | .84(.73) | .19(.09) | .84(.73) | .19(.09) | .84(.73) | .20(.09) | |||||||||||||||
30 | 1000 | .86(.72) | .26(.09) | .86(.74) | .26(.11) | .86(.74) | .27(.12) | .86(.75) | .27(.13) | .86(.75) | .27(.14) | .87(.76) | .28(.15) | .87(.76) | .28(.16) | .87(.77) | .29(.16) | ||||||||||||||
1100 | .88(.77) | .43(.17) | .88(.79) | .45(.22) | .89(.80) | .47(.27) | .89(.81) | .49(.31) | .89(.82) | .51(.34) | .89(.82) | .53(.37) | .89(.83) | .55(.40) | .89(.83) | .57(.43) | |||||||||||||||
900 | .82(.76) | .22(.14) | .82(.75) | .22(.13) | .82(.75) | .22(.13) | .82(.74) | .22(.13) | .82(.75) | .22(.13) | .82(.75) | .22(.14) | .82(.75) | .22(.14) | .82(.75) | .22(.14) | |||||||||||||||
2·1014 | 50 | 1000 | .84(.74) | .28(.13) | .85(.75) | .28(.14) | .85(.76) | .29(.15) | .85(.76) | .29(.16) | .85(.76) | .30(.17) | .85(.77) | .30(.17) | .85(.77) | .31(.18) | .85(.77) | .31(.19) | |||||||||||||
1100 | .87(.77) | .44(.19) | .87(.79) | .47(.24) | .87(.80) | .49(.28) | .88(.81) | .51(.32) | .88(.82) | .53(.35) | .88(.82) | .55(.38) | .88(.82) | .57(.41) | .88(.83) | .59(.44) | |||||||||||||||
900 | .81(.78) | .29(.23) | .81(.78) | .29(.23) | .81(.78) | .29(.23) | .81(.78) | .29(.23) | .82(.78) | .29(.23) | .82(.78) | .29(.23) | .82(.78) | .29(.23) | .82(.78) | .29(.23) | |||||||||||||||
100 | 1000 | .83(.77) | .34(.22) | .83(.77) | .34(.23) | .83(.78) | .35(.23) | .84(.78) | .35(.24) | .84(.78) | .36(.24) | .84(.79) | .36(.25) | .84(.79) | .36(.25) | .84(.79) | .37(.26) | ||||||||||||||
1100 | .86(.79) | .49(.26) | .86(.80) | .51(.30) | .86(.81) | .53(.34) | .86(.82) | .55(.37) | .87(.82) | .57(.40) | .87(.83) | .59(.43) | .87(.83) | .61(.45) | .87(.83) | .62(.48) | |||||||||||||||
900 | .69(.56) | .17(.08) | .69(.53) | .17(.07) | .69(.52) | .18(.07) | .69(.52) | .18(.08) | .69(.52) | .18(.08) | .69(.52) | .18(.08) | .69(.52) | .18(.09) | .69(.53) | .18(.09) | |||||||||||||||
30 | 1000 | .70(.53) | .25(.10) | .70(.55) | .26(.12) | .70(.57) | .27(.15) | .70(.58) | .27(.16) | .70(.58) | .28(.18) | .71(.59) | .28(.19) | .71(.60) | .29(.20) | .71(.60) | .29(.21) | ||||||||||||||
1100 | .73(.59) | .45(.19) | .74(.62) | .48(.25) | .74(.63) | .51(.30) | .75(.64) | .53(.34) | .75(.65) | .55(.38) | .75(.66) | .57(.41) | .75(.67) | .59(.44) | .76(.67) | .61(.47) | |||||||||||||||
900 | .64(.57) | .18(.11) | .64(.53) | .18(.10) | .64(.52) | .18(.10) | .65(.52) | .18(.10) | .65(.52) | .18(.10) | .65(.52) | .19(.10) | .65(.52) | .19(.10) | .65(.53) | .19(.10) | |||||||||||||||
2·1015 | 50 | 1000 | .68(.53) | .26(.11) | .68(.55) | .27(.13) | .69(.57) | .27(.15) | .69(.57) | .28(.17) | .69(.58) | .29(.18) | .69(.59) | .29(.20) | .69(.59) | .30(.21) | .69(.60) | .30(.22) | |||||||||||||
1100 | .72(.59) | .44(.20) | .72(.61) | .46(.26) | .72(.63) | .49(.31) | .73(.64) | .51(.35) | .73(.65) | .53(.38) | .73(.66) | .55(.42) | .74(.66) | .57(.45) | .74(.67) | .59(.47) | |||||||||||||||
900 | .63(.60) | .24(.19) | .63(.57) | .24(.18) | .63(.56) | .24(.17) | .63(.56) | .24(.17) | .63(.56) | .24(.17) | .63(.56) | .24(.18) | .63(.56) | .24(.18) | .63(.56) | .24(.18) | |||||||||||||||
100 | 1000 | .67(.57) | .31(.17) | .67(.58) | .32(.18) | .67(.59) | .32(.19) | .68(.59) | .33(.21) | .68(.60) | .33(.22) | .68(.60) | .34(.23) | .68(.60) | .34(.24) | .68(.61) | .35(.25) | ||||||||||||||
1100 | .70(.60) | .46(.23) | .71(.62) | .49(.29) | .71(.63) | .51(.33) | .71(.64) | .54(.37) | .72(.65) | .56(.40) | .72(.66) | .58(.43) | .72(.66) | .60(.46) | .72(.67) | .62(.49) | |||||||||||||||
900 | .55(.55) | .14(.11) | .55(.52) | .14(.10) | .55(.51) | .15(.10) | .55(.51) | .15(.11) | .55(.51) | .15(.11) | .55(.51) | .15(.11) | .54(.51) | .16(.12) | .54(.51) | .16(.12) | |||||||||||||||
30 | 1000 | .49(.43) | .23(.11) | .49(.44) | .25(.14) | .49(.45) | .27(.17) | .49(.45) | .28(.19) | .49(.45) | .30(.21) | .50(.45) | .31(.23) | .50(.45) | .33(.25) | .50(.45) | .34(.27) | ||||||||||||||
1100 | .51(.41) | .47(.22) | .51(.42) | .51(.32) | .52(.45) | .55(.40) | .52(.46) | .58(.46) | .53(.47) | .62(.52) | .53(.48) | .64(.56) | .54(.48) | .67(.60) | .54(.49) | .70(.64) | |||||||||||||||
900 | .53(.54) | .15(.13) | .53(.51) | .15(.12) | .53(.50) | .15(.12) | .53(.50) | .15(.12) | .53(.50) | .15(.13) | .53(.50) | .15(.13) | .53(.50) | .16(.13) | .52(.50) | .16(.14) | |||||||||||||||
2·1016 | 50 | 1000 | .48(.42) | .23(.12) | .48(.43) | .25(.15) | .48(.44) | .27(.18) | .48(.44) | .29(.20) | .48(.44) | .31(.22) | .48(.44) | .32(.24) | .48(.45) | .34(.26) | .48(.45) | .35(.27) | |||||||||||||
1100 | .50(.41) | .48(.23) | .51(.42) | .52(.33) | .51(.44) | .56(.41) | .52(.46) | .59(.47) | .52(.47) | .63(.52) | .52(.47) | .66(.57) | .53(.48) | .68(.61) | .53(.49) | .71(.65) | |||||||||||||||
900 | .52(.55) | .21(.20) | .52(.51) | .21(.19) | .52(.50) | .21(.18) | .52(.50) | .21(.18) | .52(.50) | .21(.18) | .52(.50) | .21(.18) | .52(.50) | .21(.19) | .52(.50) | .21(.19) | |||||||||||||||
100 | 1000 | .47(.42) | .24(.15) | .47(.42) | .26(.17) | .47(.43) | .28(.20) | .47(.43) | .29(.22) | .47(.43) | .31(.24) | .47(.43) | .33(.26) | .48(.44) | .34(.27) | .48(.44) | .36(.29) | ||||||||||||||
1100 | .50(.40) | .50(.24) | .50(.43) | .54(.35) | .51(.45) | .57(.43) | .51(.46) | .61(.49) | .52(.47) | .64(.54) | .52(.48) | .67(.58) | .52(.48) | .70(.62) | .53(.49) | .72(.66) |