TSMC 0.35µm - 2Poly3Metal Wafer Fabrication Process Qualification ...

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TSMC 0.35µm - 2Poly3Metal Wafer Fabrication Process Qualification Report Built In Reliability Page 1 of 15
INDEX: Product Family: Wafer Fab Supplier Page 3 Assembly Subcontractor Page 3 Process Technology Page 3 Product Part Numbers & Descriptions (Table 1) Page 3 List of Available Part Numbers and Packages (Table 2) Page 3 Product Information: Page 4 Pericom Reliability Testing Methodology Page 5 Wafer Level Reliability Testing Methodology Page 6 Wafer Level Reliability Tests: Hot Carrier Injection (HCI)(Table 3) Page 7 Gate Oxide Integrity(GOI) (Table 4) Page 8 Polysilicon-Insulator-Polysilicon (PIP) (Table 5) Threshold Voltage (VT) Stability (Table 6) Page 9 Page 10 Supplemental Reliability Data TSMC 0.35um, 1P4M Reliability Qualification Report Page 11 Page 2 of 15
Page 3 of 15 PERICOM PRODUCT FAMILY AND WAFER FAB PROCESS The Pericom product data presented in this report qualifies the following products from a marketing defined product family manufactured on the following wafer fab process: Product Family: SerDes Wafer Supplier: Taiwan Semiconductor Manufacturing Corp - Taiwan (TSMC) Process Technology: 0.35? m, Double-Poly Triple-Metal (2P3M) CMOS Assembly Subcontractor: ASE-Malaysia Table 1: List of Devices Part Number*1 Product Description Solder Balls Packages*2 PI90SD1636CFC 64 LQFP 10x10mm PI90SD1636CFCE 64 LQFP 10x10mm PI90SD1636CFD 64 LQFP 14x14mm PI90SD1636CFDE SerDes Gigabit Ethernet Transceiver 64 LQFP 14x14mm Note: Part Number: 'E' indicates lead-free and green. AVAILABLE PACKAGE TYPE CODES Table 2: List of Packages The following is the list of part number available for ordering.  Refer to http://www.pericom.com/pdf/datasheets/PI90SD1636 C.pdf
Page 4 of 15 Product Information For further information on products refer to Pericom website. Figure [1]: Pericom Website: http://www.pericom.com/products/serdes/PI90SD1636C/
Page 5 of 15 PERICOM RELIABILITY TESTING METHODOLOGY Pericom employs a commonly used industry method to generically qualify product. It is based on the premise that if one product of specific wafer fab/package assembly process/materials is already qualified, then a second product that has similar design, manufacturing process, and materials can be qualified by extending the data used to qualify the first product to the second product without generating additional data. This methodology allows the ability to benchmark suppliers to ensure continuous process improvements and minimize cost and time required for new product availability. The basis of this "qualification by similarity or extension" is the following rules: A.  For Wafer Fabrication Process and Materials: i)  The wafer fabrication process technology and location are the same or similar ii)  The die array design rules and die size are the same or similar iii) The standard and customized cell design and layout rules are the same or similar iv) The density and complexity are the same or similar v)  The wafer fabrication materials are the same or similar B.   For Package Assembly Process and Materials: i)  The package assembly process technology and location are the same or similar imilar me or similar )  The package assembly materials are the same or similar vice can only e fabricated on one process technology/ option, and only assembled on one package type process. ii)  The die paddle to package aspect ratio is the same or smaller iii) The package dimensions width and thickness dimensions are the same or s iv) The leadframe/substrate design and lead/ball pitch are the sa v Where a product of interest is not sampled during this period, it is valid to use the reliability data of the particular process technology or package type family to which the part belongs.  All parts within the same family are designed to the same rules, and manufacturing is controlled by SPC.  Within a product family, a de b
Page 6 of 15 WAFER LEVEL RELIABILITY TESTING METHODOLOGY e in addition to long-term operating life tests used to help qualify a wafer to ensure reliability of thin oxides, metallization and dielectric structures, and basic transistor ethods on this structure.  Otherwise the process is exactly the same as it is for the Single layer and the silicon ea of the gate oxide test device, and other factors which define acceptable versus unacceptable oltage shift due to charge storage at e oxide-nitride interface,  after exposure to high temperature for 168 hours. s report confirms the overall reliability of the CMOS 2P3M process used to manufacture is family of products. WLR (Wafer Level Reliability) involves the valuation of a technology during the initial development and qualification, and ongoing monitors of these technologies at the wafer level to provide the earliest possible feedback. These evaluations ar fabrication facility and process. Special test structures have been developed between Pericom and our CMOS wafer fabrication subcontractors to evaluate the fundamental reliability of our design rules and technologies. Wafer Level Reliability test structures are designed ruggedness. The 2nd poly layer used for this process is for the PIP (Polysilicon-Insulator-Polysilicon) Capacitor, and has been evaluated by GOI test m poly process at TSMC. Also evaluated as part of the WLR double poly process qualification was: HCI (Hot Carrier Injection) testing is done on a test structure placed next to circuit die locations on the silicon wafer to confirm the reliability impact of highly energetic carriers into the gate oxide substrate, resulting in volume charge build-up that can shift transistor threshold voltages. GOI (Gate Oxide Integrity) tests performed on a test structure by stressing the oxide using the maximum allowable voltage across the oxide; it's comparing the measured leakage current to an acceptable limit that is based on the ar leakage levels. VT (Threshold Voltage) Stability test is performed to determine if there's a v th The data summary in thi th
Page 7 of 15 Wafer Level Reliability Process Qualification Tests (TSMC 0.35um, 2P3M)       Table 3 - Hot Carrier Injection (HCI) (TSMC 0.35um, 2P3M) Description Condition Gate Oxide Thickness Channel Length HV (12V): Tox=280A,  20/1.2_1.0_0.8um LV (3.3V): T0x=70A, 20/0.35um Test Parameters HV:  A DUT is considered to fail if the Gm changes by more than 10%. Gm%  change is defined as [(Gm(t=0)-Gm (t))/Gm(t=0)]*100 LV:  A DUT is considered to fail if the Idsat changes by more that 10%. Idsat% change is defined as [(Idsat (t=0) - Idsat (t))/ Idsat (t=0)]*100, where Idsat (t=0) is the initial value and the Idsat(t) is the final values after stress time t.  Idsat measured at Vgs=Vds=Vcc Test Structure HV:  20/1.2_1.0_0.8um (mask), oxide thickness: 280A with protection diode LV:  20/0.35 (mask), oxide thickness: 70A with protection diode Vehicle Packaged:  DIP 18 ceramic package Method Temp:  25 +-2 oC Duration: 168 hours Multiple stress cycles with a time accuracy of +/- 1% DC Bias Stress: Vgs are kept at Isub max. of Vds=1.1(Vcc),  Vds<90% of breakdown. Vbs=0V Model Used 1. HV device,  Vds=13.2V, Vgs@Isub (max) 2. LV device,  TTF =(Isub-3)(Id2) Sample size 10 DUTs per lot.  3 lots. Merit Number Lifetime at 1.1Vcc Spec HV: AC TTF>100K hours @-55oC LV:  DC (1.1Vcc) lifetime >0.2yrs @ 25oC Conclusion:  All samples passed qualification test.
Page 8 of 15 Table 4 - Gate Oxide Integrity (GOI) (TSMC 0.35um, 2P3M) Description Condition 70A Bulk P-well:  Area=1,000,000 um2; edge length=4,000 um Bulk N-well:  Area=1,000,000 um2; edge length=4,000 um OD P-well: Area=633,600 um2; OD Edge length=1,008,800um OD N-well: Area=633,600 um2; OD Edge length=1,008,800um Poly Finger P-Well:  Area=1,083,750 um2; S/D edge length=722,500um Poly Finger N-Well:  Area=1,083,750 um2; S/D edge length=722,500um Test Vehicle 280A Bulk P-well:  Area=1,000,000 um2; edge length=4,000 um Bulk N-well:  Area=1,000,000 um2; edge length=4,000 um OD P-well: Area=1,000,000 um2; OD Edge length=200,000um OD N-well: Area=1,000,000 um2; OD Edge length=200,000um Poly Finger P-Well:  Area=1,000,000 um2; S/D edge length=202,000um Poly Finger N-Well:  Area=1,000,000 um2; S/D edge length=202,000um 70A Stress Mode:                        Accumulation Measurement Mode:            Accumulation Ramp Rate (V/sec):             6.27V/sec (V step =0.19V, T step =0.03sec) Initial Voltage (V):              1.5V Measurement Voltage (V):  1.5V Failure is 15uA at 1.5V Test Condition 280A Stress Mode:                        Accumulation Measurement Mode:            Accumulation Ramp Rate (V/sec):             6.27V/sec (V step =0.19V, T step =0.03sec) Initial Voltage (V):              12V Measurement Voltage (V):  12V Failure is 1uA at 12V 70A Mode A failure:  Breakdown voltage (V bd ) </=3.3V Mode B failure: 3.3V<V bd <8V Failure Criteria 280A Mode A failure:  Breakdown voltage (V bd ) </=12V Mode B failure: 12V<V bd <29V Spec Mode A: Do<5/cm2 Mode B: Do<1/cm2 Sample Size Lot 1:(6 structure X 350 samples) + (8 structure X 350 samples)=4900 samples Lot 2:(6 structure X 250 samples) + (8 structure X 250 samples)=3500 samples Lot 2:(6 structure X 250 samples) + (8 structure X 250 samples)=3500 samples Conclusion:  All samples passed qualification test.
Page 9 of 15 Table 5 - Polysilicon-Insulator-Polysilicon (PIP) (TSMC 0.35um, 2P3M) Description Condition Test Vehicle 370A CAP8:  Area=48,910um2 Test Condition 370A Stress Mode:                        Accumulation Measurement Mode:            Accumulation Ramp Rate (V/sec):             6.27V/sec (V step =0.19V, T step =0.03sec) Initial Voltage (V):              12V Measurement Voltage (V):  12V Failure is 1uA at 12V Failure Criteria 370A Mode A failure:  Breakdown voltage (V bd ) </=12V Mode B failure: 12V<V bd <29V Spec Mode A: Do<5/cm2 Mode B: Do<1/cm2 Sample Size Lot 1: 1 structure x 350 samples =350 samples Lot 2: 1 structure x 250 samples= 250 samples Lot 3: 1 structure x 250 samples= 250 samples Conclusion:  All samples passed qualification test.
Page 10 of 15 Table 6 - Voltage Threshold (VT) Stability (TSMC 0.35um, 2P3M) Description Condition Test Parameters A DUT is considered to fail if the Vt shifts by more than 15%Vt (ini) on active transistor. Test Structure N/P type: mask gate size: W/L=20/0.35um for 3.3V device N/P type: mask gate size: W/L=20/1.2_1.0um for 12V asymmetric and symmetric device Vt Definition Extrapolation method form |Ids| at Gm max |Vds|=0.1V, Vs=Vb=GND Method 1. Measure Vt(ini) at room temp 2. 168 hours stress (Vg=Vcc+10%@inversion mode, Vs=Vb=Vd=GND, oven temp at 150oC 3. Measure Vt(ini) at room temp 4. Vt shift percentage = [Vt(final)-Vt(ini)]/Vt(ini) x100 Sample Size 10 transistors for each test structure Merit Number Vt shift percentage    Conclusion:  All samples passed qualification test.
Page 11 of 15 SUPPLEMENTAL RELIABITIY DATA TSMC, 0.35um, 1P4m 3.3V CMOS Process The Pericom product data presented in this report qualifies the following products from a marketing defined product family manufactured on the following wafer fab process: Product Family: 2-Port PCI-to-PCI Bridge Wafer Fab Process: TSMC (Taiwan Semiconductor Manufacturing Company Limited) Wafer Supplier: TSMC (Taiwan Semiconductor Manufacturing Company Limited) Assembly Subcontractor:  ASE Electronics (M)   (ASEM) Process Technology: 0.35 ? m, 3.3V, Single-Poly Quadruple-Metal CMOS Product Group: 3.3 Volt PCI-Express Reliability Process Qualification Tests TSMC, 0.35 ? m 1P4M 3.3V CMOS Process   Table 7 - JEDEC Standard PERICOM RELIABILITY TEST DESCRIPTION (ALTERNATIVE NAME) PERICOM TEST CODE EIA JEDEC STANDARD Latch-Up Sensitivity LU JESD78 Electrostatic Discharge (ESD) Sensitivity Testing Human Body Model (HBM) ESD - HBM JESD22-A114-C Electrostatic Discharge (ESD) Sensitivity Testing Machine Model (MM) ESD - MM JESD22-115-A Electrostatic Discharge (ESD) Charged Device Model (CDM) ESD - CDM JESD22-C101C Temperature, Bias, and Operating Life (Dynamic High Temperature Operating Life) DHTOL JESD22-A108C High Temperature Storage Life (Bake) HTSL JESD22-A103C Highly Accelerated Stress Testing HAST JESD22-A110-B Temperature Cycle Test TMCL JESD22-A104C Accelerated Moisture Resistance - Unbiased Autoclave PCT JESD22-A102-C
Page 12 of 15 Table 8 - Test Condition PERICOM Test Code (Refer to Table 3) TEST Condition (Temp., Voltage, Cycles, Humidity, Time, Pressure) Total Quantity/Number of Rejects (Number of Lots) Amplitude or Duration Stress LU 25°C 6/0 (1 lot) ?200mA/ 4.0 V ESD-HBM 25°C 5/0 (1 lot) ?2000V(HBM) ESD-MM 25°C 5/0 (1 lot) ?200V(MM) ESD-CDM 25°C 5/0 (1 lot) ?500V(CDM) DHTOL Temperature=125°C Voltage = 3.6 V (min. Bias: Vcc+10%) 336/0 (3 lots) 168, 500, 1000 Hrs. (Cumulative) HTSL 150°C (no bias) 45/0 (3 lots) 1000 Hrs. HAST T a = 130°C RH= 85% P= 33.3 PSIA Voltage=3.6 V Time=96 hours 45/0 (2 lots) 96 Hrs. TMCL Condition C T a =  ?65°C to +150°C 10 min dwell Cycles = 500 75/0 (3 lots) 500 Cycles PCT T a = 121°C RH= 100% P= 29.7 PSIA Voltage=0 V Time=96 hours 45/0 (2 lots) 96 Hrs.
Page 13 of 15 Process Latch-Up & ESD Characterization Data Latch-Up Test (LU) TSMC, 0.35 ? m 1P4M 3.3V CMOS Process Table 9 - Latch-Up Test Device Date Code SS Rej. Vcc max T a Remarks LU PI7C8150B B0610BT 6 0 4.0V 25°C JESD78 ESD Test (ESD) Human Body Model (HBM) Machine Model (MM) Charged Device Model (CDM) TSMC, 0.35 ? m 1P4M 3.3V CMOS Process Table 10 - ESD Test Device Date Code SS Rej. V min T a Remarks ESD-HBM PI7C8150B B0610BT 5 0 2000V 25°C JESD22-A114-C ESD-MM PI7C8150B B0610BT 5 0 200V 25°C JESD22-115-A ESD-CDM PI7C8150B B0610BT 5 0 500V 25°C JESD22-C101C
Page 14 of 15 High Temperature Biased & Storage Die Life Test Data Temperature, Bias, and Operating Life (Dynamic High Temperature Operating Life) (DHTOL) Reliability Failure Rate Summary TSMC, 0.35 ? m 1P4M 3.3V CMOS Process Table 11 - FIT & MTBF Reliability Stress Test REL Lot # Devices Tested Hours Tested Device Hours Number of Fails Activation Energy (E A ) (ev) DHTOL QDT06002-1 112 1000 112,000 0 0.5 DHTOL QDT06002-2 112 1000 112,000 0 0.5 DHTOL QDT06002-3 112 1000 112,000 0 0.5 Process Average Æ 112 1000 112,000 0 0.5 FIT Æ Æ Æ Æ Æ 36.6 MTBF / MTTF 1 Æ Æ Æ Æ Æ 27,315,246 Hrs . NOTES ON TABLE ABOVE AND ACCELERATION FACTORS: 1.  MTBF / MTTF = Mean Time Between/To Failure = 1/F r (F r ? 1) 2.  PPM = parts per million = 10-6 3.  FIT = Failures In Time = F r × 109 4.  F r = Failure rate (% reject per 1000 hours) = F r × 105 = ?2 (x, v)/2 Ndt 5.  ?2 = Chi-squared value 6.  x = (1-CL) where CL = confidence level = 60% 7.  v = (2N+2) = degrees of freedom where N is the number of rejects 8.  Ndt = the equivalent device hours = device hours × AF 9.  Device hours = devices tested × hours tested 10.  AF = Acceleration Factor: ? e Arrhenius equation for accelerated temperatur (A A t ): t exp{(-E = / A k)(1/T 2 erated voltage (A -1/T 1 )} ? Arrhenius equation for accel 11.  A v ): A v = exp{C(V S -V o )} t = thermal acceleration Factor 12.  A v = voltage acceleration Factor cted failure mechanisms = 0.5 eV 13.  E A = average thermal activation energy for expe 14.  k = Boltzmann's constant = 8.62 × 10-5 eV/°K 15.  T 1 = life test operating temperature 16.  T 2 = system use operating temperature = 55°C 17.  C = constant that is a function of the dielectric thickness (t ox ) = t ox /100 19.  V o = system use operating voltage 18.  V s = life test operating voltage
Page 15 of 15 Dynamic High Temperature Operating Life Test (DHTOL) TSMC, 0.35 ? m 1P4M 3.3V CMOS Process Table 12 - DHTOL Lot # Device Date Code Fab Lot SS Rej. HoursT a Remarks QDT06002-1 B0610BT EH60175.1B112 0 1000 QDT06002-2 B0633BT H20402.4 1120 1000 QDT06002-3 PI7C8150B B0641BT H20905 1120 1000 125°C Vcc = 3.6 Volts High Temperature Storage Life Test (HTSL) TSMC, 0.35 ? m 1P4M 3.3V CMOS Process Table 13 - HTSL Lot # Device Date Code SS Rej. Hours T a Remarks QDT06002-1HTSL B0610BT 15 0 QDT06002-2HTSL B0633BT 15 0 QDT06002-3HTSL PI7C8150B B0641BT 15 0 1000 150°C No Bias Highly Accelerated Stress Testing (HAST) TSMC, 0.35 ? m 1P4M 3.3V CMOS Process Table 14 -HAST Lot # Device Package Date CodeSS Rej. HoursT a Remarks QDT06002-1HAST B0610BT 15 0 QDT06002-2HAST B0633BT 15 0 QDT06002-3HAST PI7C8150B PBGA-256 (ND-256) B0641BT 15 0 96 130°C RH= 85% P= 33.3 PSIA Voltage=3.6 V Temperature Cycle Test (TMCL) TSMC, 0.35 ? m 1P4M 3.3V CMOS Process Table 15- TMCL Lot # Device Package Date Code SS Rej. Cycles T a Remarks QDT06002-1TMCL B0610BT 25 0 QDT06002-2TMCL B0633BT 25 0 QDT06002-3TMCL PI7C8150B PBGA-256 (ND-256) B0641BT 25 0 500 ?65°C to +150°C Accelerated Moisture Resistance - Unbiased Autoclave (PCT) TSMC, 0.35 ? m 1P4M 3.3V CMOS Process Table 16 -PCT Lot # Device Package Date Code SS Rej. HoursT a Remarks QDT06002-1PCT B0610BT 15 0 QDT06002-2PCT B0633BT 15 0 QDT06002-3PCT PI7C8150B PBGA-256 (ND-256) B0641BT 15 0 96 121°C RH= 100% P= 29.7 PSIA T = 121°C Voltage=0 V
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