============================================================ ============== Layout of this results document ============= ============================================================ We received 5 chips and tested 5 chips. The testing procedure we followed can be found at the following link: cmosedu.com/jbaker/courses/ee421L/f13/students/solori12/lab8/lab8.htm Each element in the chip was tested as specified in this webpage, the results for each test are formatted as follows: *100/2 NMOS *100/2 PMOS *200/100 Inverter *61 stage ring oscillator *Resistors *Bandgap reference (with nominal Vref = 1.25 volts) Note: Overall the five chips were consistent. The NMOS and PMOS transistors had very similar drain-source current values with the same gate voltages. ============================================================ ================= Chip 1 Testing Results =================== ============================================================ 100/2 NMOS --------------------------- Test 1: Measured current: 0 amps Test 2: Measured current: 13 milliAmps Test 3: Voltage @ gate (volts) || Current (drain to source) ==================================================== 0.5 || 3.5 uA 0.6 || 26 uA 0.7 || 100 uA 0.8 || 230 uA 0.9 || 420 uA 1.0 || 700 uA 1.1 || 1.13 mA 1.2 || 1.65 mA 1.5 || 3.10 mA 2.0 || 4.90 mA 2.5 || 5.90 mA 3.0 || 6.70 mA 3.5 || 7.60 mA 100/2 PMOS --------------------------- Test 1: Measured current: 7.6 milliAmps Test 2: Measured current: 0 amps Test 3: Voltage @ gate (volts) || Current (drain to source) ==================================================== 4.2 || 5 uA 4.1 || 23 uA 4.0 || 63 uA 3.8 || 220 uA 3.5 || 580 uA 3.0 || 1.4 mA 2.5 || 2.3 mA 2.0 || 3.4 mA 200/100 Inverter -------------------------- Test 1: Measured voltage: 0 volts Test 2: Measured voltage: 5 volts Test 3: Measured Vsp : 2.33 volts 61 stage ring oscillator -------------------------- Test 1 & 2: We were unable to get accurate results for this element. Resistors -------------------------- Test 1: 20k n-well resistor || 20k hi-res poly resistor ==================================================== 127 uA || 245 uA 5 V || 5 V 39.4 k-Ohms || 20.4 k-Ohms Test 2: 1k p+ resistor || 1k n+ resistor ==================================================== 5.21 mA || 4.48 mA 5 V || 5 V 959 Ohms || 1116 Ohms Bandgap Reference -------------------------- Test 1: Measured voltage: 1.17 volts ============================================================ ================= Chip 2 Testing Results =================== ============================================================ 100/2 NMOS --------------------------- Test 1: Measured current: 0 amps Test 2: Measured current: 13 milliAmps Test 3: Voltage @ gate (volts) || Current (drain to source) ==================================================== 0.5 || 2.5 uA 0.6 || 20 uA 0.7 || 84 uA 0.8 || 200 uA 0.9 || 380 uA 1.0 || 596 uA 1.1 || 890 uA 1.2 || 1.30 mA 1.5 || 2.60 mA 2.0 || 4.50 mA 2.5 || 5.80 mA 3.0 || 6.70 mA 3.5 || 7.90 mA 100/2 PMOS --------------------------- Test 1: Measured current: 7.6 milliAmps Test 2: Measured current: 0 amps Test 3: Voltage @ gate (volts) || Current (drain to source) ==================================================== 4.2 || 5.4 uA 4.1 || 24 uA 4.0 || 65 uA 3.8 || 220 uA 3.5 || 570 uA 3.0 || 1.4 mA 2.5 || 2.3 mA 2.0 || 3.4 mA 200/100 Inverter -------------------------- Test 1: Measured voltage: 670 microvolts Test 2: Measured voltage: 5 volts Test 3: Measured Vsp : 2.33 volts 61 stage ring oscillator -------------------------- Test 1 & 2: We were unable to get accurate results for this element. Resistors -------------------------- Test 1: 20k n-well resistor || 20k hi-res poly resistor ==================================================== 126 uA || 256 uA 5 V || 5 V 39.7 k-Ohms || 19.5 k-Ohms Test 2: 1k p+ resistor || 1k n+ resistor ==================================================== 5.21 mA || 4.48 mA 5 V || 5 V 959 Ohms || 1116 Ohms Bandgap Reference -------------------------- Test 1: Measured voltage: 1.21 volts ============================================================ ================= Chip 3 Testing Results =================== ============================================================ 100/2 NMOS --------------------------- Test 1: Measured current: 0 amps Test 2: Measured current: 13.5 milliAmps Test 3: Voltage @ gate (volts) || Current (drain to source) ==================================================== 0.5 || 2.3 uA 0.6 || 19 uA 0.7 || 80 uA 0.8 || 200 uA 0.9 || 360 uA 1.0 || 560 uA 1.1 || 800 uA 1.2 || 1.00 mA 1.5 || 1.90 mA 2.0 || 3.40 mA 2.5 || 5.10 mA 3.0 || 6.70 mA 3.5 || 8.30 mA 100/2 PMOS --------------------------- Test 1: Measured current: 7.73 milliAmps Test 2: Measured current: 0 amps Test 3: Voltage @ gate (volts) || Current (drain to source) ==================================================== 4.2 || 4.0 uA 4.1 || 20 uA 4.0 || 58 uA 3.8 || 200 uA 3.5 || 560 uA 3.0 || 1.4 mA 2.5 || 2.3 mA 2.0 || 3.3 mA 200/100 Inverter -------------------------- Test 1: Measured voltage: 970 microvolts Test 2: Measured voltage: 5 volts Test 3: Measured Vsp : 2.33 volts 61 stage ring oscillator -------------------------- Test 1 & 2: We were unable to get accurate results for this element. Resistors -------------------------- Test 1: 20k n-well resistor || 20k hi-res poly resistor ==================================================== 127 uA || 259 uA 5 V || 5 V 39.4 k-Ohms || 19.3 k-Ohms Test 2: 1k p+ resistor || 1k n+ resistor ==================================================== 5.21 mA || 4.47 mA 5 V || 5 V 959 Ohms || 1119 Ohms Bandgap Reference -------------------------- Test 1: Measured voltage: 1.38 volts ============================================================ ================= Chip 4 Testing Results =================== ============================================================ 100/2 NMOS --------------------------- Test 1: Measured current: 0 amps Test 2: Measured current: 13.6 milliAmps Test 3: Voltage @ gate (volts) || Current (drain to source) ==================================================== 0.5 || 3.0 uA 0.6 || 23 uA 0.7 || 91 uA 0.8 || 220 uA 0.9 || 390 uA 1.0 || 600 uA 1.1 || 830 uA 1.2 || 1.10 mA 1.5 || 1.90 mA 2.0 || 3.50 mA 2.5 || 5.10 mA 3.0 || 6.80 mA 3.5 || 8.40 mA 100/2 PMOS --------------------------- Test 1: Measured current: 7.88 milliAmps Test 2: Measured current: 0 amps Test 3: Voltage @ gate (volts) || Current (drain to source) ==================================================== 4.2 || 6.6 uA 4.1 || 27 uA 4.0 || 72 uA 3.8 || 230 uA 3.5 || 600 uA 3.0 || 1.4 mA 2.5 || 2.4 mA 2.0 || 3.4 mA 200/100 Inverter -------------------------- Test 1: Measured voltage: 750 microvolts Test 2: Measured voltage: 5 volts Test 3: Measured Vsp : 2.34 volts 61 stage ring oscillator -------------------------- Test 1 & 2: We were unable to get accurate results for this element. Resistors -------------------------- Test 1: 20k n-well resistor || 20k hi-res poly resistor ==================================================== 125 uA || 255 uA 5 V || 5 V 40.0 k-Ohms || 19.6 Ohms Test 2: 1k p+ resistor || 1k n+ resistor ==================================================== 5.20 mA || 4.48 mA 5 V || 5 V 961 Ohms || 1116 Ohms Bandgap Reference -------------------------- Test 1: Measured voltage: 1.19 volts ============================================================ ================= Chip 5 Testing Results =================== ============================================================ 100/2 NMOS --------------------------- Test 1: Measured current: 0 amps Test 2: Measured current: 13.5 milliAmps Test 3: Voltage @ gate (volts) || Current (drain to source) ==================================================== 0.5 || 3.3 uA 0.6 || 23 uA 0.7 || 88 uA 0.8 || 210 uA 0.9 || 380 uA 1.0 || 590 uA 1.1 || 820 uA 1.2 || 1.10 mA 1.5 || 2.00 mA 2.0 || 3.50 mA 2.5 || 5.10 mA 3.0 || 6.70 mA 3.5 || 8.30 mA 100/2 PMOS --------------------------- Test 1: Measured current: 7.75 milliAmps Test 2: Measured current: 0 amps Test 3: Voltage @ gate (volts) || Current (drain to source) ==================================================== 4.2 || 4.7 uA 4.1 || 21 uA 4.0 || 61 uA 3.8 || 210 uA 3.5 || 460 uA 3.0 || 1.4 mA 2.5 || 2.3 mA 2.0 || 3.3 mA 200/100 Inverter -------------------------- Test 1: Measured voltage: 300 microvolts Test 2: Measured voltage: 5 volts Test 3: Measured Vsp : 2.34 volts 61 stage ring oscillator -------------------------- Test 1 & 2: We were unable to get accurate results for this element. Resistors -------------------------- Test 1: 20k n-well resistor || 20k hi-res poly resistor ==================================================== 127 uA || 255 uA 5 V || 5 V 39.4 k-Ohms || 19.6 k-Ohms Test 2: 1k p+ resistor || 1k n+ resistor ==================================================== 5.22 mA || 4.49 mA 5 V || 5 V 958 Ohms || 1114 Ohms Bandgap Reference -------------------------- Test 1: Measured voltage: 1.16 volts