Product Change Notices PCN No.: 20070602 Date: 06/21/2007 This is to inform you that a design, process and datasheet change will be made to the following product(s). This notification is for your information and concurrence. If you require data or samples to qualify this change, please contact AME, Inc. within 30 days of receipt of this notification. If we do not receive any response from you within 30 calendar days from the date of this notification, we will consider that you have accepted this PCN. If you have any questions concerning this change, please contact: PCN Originator: Name: Nick Huang Email: [email protected] Expected 1st Device Shipment Date: 06/28/2007 Earliest Year/Work Week of Changed Product: 0722 Description of Change: 1. Change foundry from BCD Semiconductor Company Limited. to CR Semiconductor Wafers & Chips Ltd. 2. Deviation of Reference Voltage Over Temperature (-40°C~125°C): Change from 10mV maximum to 18mV maximum. Reason for Change: To increase capability for AME431B, 2.5V series. QPM018A-A AME, Inc. AME431B ary n i lim Pre n General Description The AME431B series ICs are 3-terminal adjustable shunt regulator with guaranteed temperature stability over a full operation range. These ICs feature sharp turn-on characteristics, low temperature coefficient and low output impendance, which make them ideal substitutes for Zener diodes in applications such as switching power supply, charger and other adjustable regulators. Adjustable Precision Shunt Regulator n Functional Block Diagram Cathode REF The reference is set to 2.5V for AME431Bxxxxx25. The output voltage can be set to 2.5V to 36V for VREF=2.5V part type with two external resistors. VREF The AME431B precision reference is offered in two reference tolerance: 0.5% and 1.0% The 5 main packages have low thermal impendance which allows operation over a wide range of -40oC to Anode +125oC. n Features n Applications l Very Accurate Reference Voltage : 0.15% Typical l Adjustable Power Supplies l High Stability under Capacitive Load l Linear Regulators l Low Temperature Deviation: 4.5mV Typical l Battery Operated Computer l Low Equivalent Full-Range Temperature Coefficient with 20PPM/oC Typical l Low Dynamic Output Resistance: 0.2Ω Typical l Sink Current Capacity from 1mA to 100mA l Low Output Noise l Available in 5 Packages: TO-92-3, SOT-23, SOT-89, SOP-8 and SOT-25 l All AME’s Lead Free Products Meet RoHS l l l l l l Portable Electronics Instrumentation Switching Power Supply Mother Board LCD Monitor Note Book Computer Standards Rev.ENG.A 1 AME, Inc. ary n i lim Pre AME431B Adjustable Precision Shunt Regulator n Typical Applications Shunt Regulator R3 VIN VOUT R1 VO=(1+R1/R2) VREF VREF AME431B R2 High Current Shunt Regulator VIN R1 VOUT R4 R2 VO=(1+R2/R3) VREF VREF AME431B R3 Current Source or Current Limit R2 VIN IOUT IOUT=VREF/R2+IKA R1 AME431B 2 Rev.ENG.A AME, Inc. ary n i lim Pre AME431B Adjustable Precision Shunt Regulator n Typical Applications (contd.) Precision 5V 1.5A Regulator AME1117 VIN VOUT 5V, 1.5A Adjust R1 8.2K R2 250 AME431B R3 250 Precision 5V 1.5A Regulator R3 R4 R2 680 C1 VOUT R5 U2 R1 C2 Q1 3 COMP PWM Controller R6 2 AME431B VFB 4 PS521 Rev.ENG.A 3 AME, Inc. l Pre AME431B ary n i im Adjustable Precision Shunt Regulator n Pin Configuration SOT-23/TSOT-23 Top View 3 AME431B 1 2 SOT-23/TSOT-23 Top View AME431BAJETXXXX 1. Cathode 2. REF 3. Anode * Die Attach: Conductive Epoxy SOT-89 Front View AME431B 1 2 3 7 6 2 3 1 2 * Die Attach: Conductive Epoxy AME431BAJFTXXXX 1. REF 2. Anode 3. Cathode 1 2 3 * Die Attach: Conductive Epoxy AME431BAJATXXXX 1. REF 2. Anode 3. Cathode * Die Attach: Conductive Epoxy SOT-25/TSOT-25 Top View 5 AME431B 1 AME431B AME431BBJETXXXX 1. REF 2. Cathode 3. Anode TO-92-3 Bottom View SOP-8 Top View 8 3 4 AME431BAJHAXXXX 1. Cathode 2. Anode 3. Anode 4. NC 5. NC 6. Anode 7. Anode 8. REF 5 4 AME431B 1 2 3 AME431BAJEVXXXX 1. NC 2. NC 3. Cathode 4. REF 5. Andode * Die Attach: Non-Conductive Epoxy * Die Attach: Conductive Epoxy 4 Rev.ENG.A AME, Inc. ary n i lim Pre AME431B Adjustable Precision Shunt Regulator n Ordering Information AME431B x x x x x xx x x Special Feature2 Special Feature1 Reference Voltage Accuracy Number of Pins Package Type Operating Ambient Temperature Range Pin Configuration Pin Configuration A (SOT-23) (TSOT-23) B (SOT-23) (TSOT-23) A (SOT-89) A (TO-92-3) A (SOP-8) A (SOT-25) 1. Cathode 2. REF 3. Anode Operating Ambient Temperature Range J: -40OC to 125OC Package Type A: E: F: H: TO-92 SOT-2X SOT-89 SOP Number of Pins A: 8 T: 3 V: 5 Accuracy A: 0.5% B: 1.0% Reference Voltage 25: 2.5V Special Feature1 L: Low profile Y: Lead free & Low profile Z: Lead free Special Feature2 (For TO-92 Package Only) Package Lead Pitch N/A: Taping 5.08mm 1: Bulk 2.54mm 1. REF 2. Cathode 3. Anode 1. REF 2. Anode 3. Cathode 1. REF 2. Anode 3. Cathode 1. Cathode 2. Anode 3. Anode 4. NC 5. NC 6. Anode 7. Anode 8. REF 1. NC 2. NC 3. Cathode 4. REF 5. Anode Rev.ENG.A 5 AME, Inc. AME431B ary n i lim Pre Adjustable Precision Shunt Regulator n Ordering Information (contd.) Reference Operating Ambient Accuracy Package Voltage Temperature Range Part Number Marking AME431BAJETA25 BAFww 2.5V 0.5% SOT-23 - 40oC to 125oC AME431BAJETA25L BAFww 2.5V 0.5% TSOT-23 - 40oC to 125oC AME431BAJETA25Z BAFww 2.5V 0.5% SOT-23 - 40oC to 125oC AME431BAJETA25Y BAFww 2.5V 0.5% TSOT-23 - 40oC to 125oC AME431BBJETA25 BAGww 2.5V 0.5% SOT-23 - 40oC to 125oC AME431BBJETA25L BAGww 2.5V 0.5% TSOT-23 - 40oC to 125oC AME431BBJETA25Z BAGww 2.5V 0.5% SOT-23 - 40oC to 125oC AME431BBJETA25Y BAGww 2.5V 0.5% TSOT-23 - 40oC to 125oC AME431BAJETB25 AZAww 2.5V 1.0% SOT-23 - 40oC to 125oC AME431BAJETB25L AZAww 2.5V 1.0% TSOT-23 - 40oC to 125oC AME431BAJETB25Z AZAww 2.5V 1.0% SOT-23 - 40oC to 125oC AME431BAJETB25Y AZAww 2.5V 1.0% TSOT-23 - 40oC to 125oC AME431BBJETB25 AZBww 2.5V 1.0% SOT-23 - 40oC to 125oC AME431BBJETB25L AZBww 2.5V 1.0% TSOT-23 - 40oC to 125oC AME431BBJETB25Z AZBww 2.5V 1.0% SOT-23 - 40oC to 125oC AME431BBJETB25Y AZBww 2.5V 1.0% TSOT-23 - 40oC to 125oC 2.5V 1.0% SOT-89 - 40oC to 125oC 2.5V 1.0% SOP-8 - 40oC to 125oC AME431BAJFTB25Z AME431BAJHAB25Z A431B BJBww 431B BJCww Note: yyww & ww represents the date code and pls refer to Date Code Rule before Package Dimension. * A line on top of the first letter represents lead free plating such as BAF Please consult AME sales office or authorized Rep./Distributor for output voltage and package type availability. 6 Rev.ENG.A AME, Inc. AME431B ary n i lim Pre Adjustable Precision Shunt Regulator n Ordering Information Part Number AME431BAJATB25 AME431BAJATB25-1 AME431BAJATB25Z AME431BAJATB25Z-1 AME431BAJATA25 AME431BAJATA25-1 AME431BAJATA25Z AME431BAJATA25Z-1 Rev.ENG.A Marking* AME25 431B AJATB yyww AME25 431B AJATB yyww AME25 431B AJATB yyww AME25 431B AJATB yyww AME25 431B AJATA yyww AME25 431B AJATA yyww AME25 431B AJATA yyww AME25 431B AJATA yyww Reference Operating Ambient Accuracy Package Voltage Temperature Range 2.5V 1.0% TO-92-3 - 40oC to 125oC 2.5V 1.0% TO-92-3 - 40oC to 125oC 2.5V 1.0% TO-92-3 - 40oC to 125oC 2.5V 1.0% TO-92-3 - 40oC to 125oC 2.5V 0.5% TO-92-3 - 40oC to 125oC 2.5V 0.5% TO-92-3 - 40oC to 125oC 2.5V 0.5% TO-92-3 - 40oC to 125oC 2.5V 0.5% TO-92-3 - 40oC to 125oC 7 AME, Inc. AME431B ary n i lim Pre Adjustable Precision Shunt Regulator n Absolute Maximum Ratings Maximum Parameter Unit Cathode Current AME431Bxxxxx25 150 Cathode Voltage AME431Bxxxxx25 40 V Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device n Recommended Operating Conditions Parameter Supply Current 8 Rating Unit 1 to 100 mA Operation Voltage Range AME431Bxxxxx25 Ambient Temperature Range TA -40 to 125 o Junction Temperature Range TJ -40 to 125 o Storage Temperature Range TSTG -65 to 150 o 2.50 to 36 V C C C Rev.ENG.A AME, Inc. AME431B ary n i lim Pre Adjustable Precision Shunt Regulator n Thermal Information Parameter Package Die Attach Symbol SOT-23** TSOT-23 SOT-89* Thermal Resistance (Junction to Case) 40 Conductive Epoxy θJC SOP-8** SOT-89 Non-Conductive Epoxy 140 o C/W 260 180 Conductive Epoxy TO-92-3 θJA SOP-8 SOT-25 TSOT-25 Internal Power Dissipation Non-Conductive Epoxy 280 400 550 Conductive Epoxy TO-92-3 PD SOP-8 SOT-25 TSOT-25 150 150 SOT-23 TSOT-23 SOT-89 80 60 SOT-23 TSOT-23 Thermal Resistance (Junction to Ambient) Unit 81 TO-92-3** SOT-25** TSOT-25 Maximum 625 mW 810 Non-Conductive Epoxy Solder Iron (10 Sec)*** 400 350 o C * Measure θJC on backside center of tab. ** Measure θJC on center of molding compound if IC has no tab. *** MIL-STD-202G 210F Rev.ENG.A 9 AME, Inc. ary n i lim Pre AME431B Adjustable Precision Shunt Regulator n Electrical Specifications (AME431Bxxxxx25) TA = 250C, IREF=10mA unless otherwise specified Test Symbol Circuit Parameter 0.5% Reference Voltage 1.0% Deviation of Reference Voltage Over Temperature 1 VREF 1 ∆VREF Test Condition Min 2.4875 VKA = VREF, IKA=10mA 2 Reference Current 2 ∆VREF ∆VKA Max 2.475 2.500 2.525 0oC to 70oC - 4.5 8 IKA=10mA -40oC to 125oC - 4.5 18 - -1.0 -2.7 10V to VREF IKA=10mA V mV mV/V ∆VKA= 36V to 10V IKA=10mA IREF Units 2.500 2.5125 VKA = VREF ∆VKA= Ratio of Change in Reference Voltage to the Change in Cathode Voltage Typ R1=10KΩ, R2=∞ - -0.5 -2.0 - 0.7 4.0 µA - 0.4 1.2 µA R1=10KΩ , R2= ∞ Deviation of Reference Current Over Full Temperature Range 2 Minimum Cathode Current for Regulation 1 IKA (MIN) VKA=VREF - 0.4 1.0 mA Off-State Cathode Current 3 IKA (OFF) VKA=36V,VREF =0V - 0.05 1.0 µA Dynamic Impendance 1 ZKA VKA = VREF , IKA=1 to 100mA F<1KHz - 0.15 0.5 Ω VIN IKA=10mA TA= -40oC to 125oC R1 VKA IKA ∆IREF R3 VIN VKA VIN IKA VKA IOFF R1 IREF VKA=VREF(1+R1/R2)+IREFR1 R2 VREF VREF Figure1. Test Circuit4 for VKA=VREF 10 Figure2. Test Circuit for VKA>VREF Figure3. Test Circuit for IOFF Rev.ENG.A AME, Inc. ary n i lim Pre AME431B Adjustable Precision Shunt Regulator Current vs. Cathode Voltage Cathode Current vs. Cathode Voltage TA= VKA=VREF TA= 25oC 800 VKA=VREF 25oC Cathode Current (µA) Cathode Current (mA) 150 100 50 0 -50 600 400 340 200 0 -200 -100 -2 -1 0 1 2 3 -1.0 -0.5 0.0 Cathode Voltage (V) 1.0 1.5 2.0 2.495 Reference Voltage vs. Cathode Current 2.520 1.6 2.515 Reference Voltage (V) Reference Current (µA) Reference Current vs. Temperature 1.7 1.5 1.4 1.3 1.2 1.1 1.0 -45 0.5 Cathode Voltage (V) 2.510 2.505 2.500 2.495 2.490 2.485 -5 25 55 85 115 125 2.480 10 20 30 o Temperature ( C) 40 50 60 70 80 90 100 110 Cathode Current (mA) Small Signal Voltage Gain vs. Frequency 1K 60 10K 100K TA= 25oC IKA= 10mA 50 Av (dB) 1000K 60 50 40 40 30 30 20 20 10 10 Output 15K IKA 242 10uF 8.2K 0 1K 10K 100K 0 1000K GND Small Signal Frequency Rev.ENG.A 11 AME, Inc. ary n i lim Pre AME431B Adjustable Precision Shunt Regulator Input and Output Voltage (V) Small Signal Voltage Gain vs. Frequency 5 220 Input Output 4 VREF = 2.5V Pulse Generator f=100KHz 3 Output 2 50 1 GND 0 0 2 4 6 Time (µS) Reference Impedance vs. Frequency Reference Impedance (Ω) 1K IKA= 10mA Output TA= 25oC 10 IKA 50 1 0.1 1K 10K 100K GND 1000K Frequency (Hz) Stability Boundary Conditions vs. Load Capacitance 100 Cathode Current (mA) 90 A: - - - VKA=5V 80 B: ___ VKA=10V 70 VKA=15V: No oscillation R1(10K) IKA 150 60 50 40 A 30 R2 20 10 0 0.01uF B 0.1uF 1uF 2uF Load Capacitance 12 Rev.ENG.A AME, Inc. ary n i lim Pre AME431B Adjustable Precision Shunt Regulator Off-State Current vs. Temperature Delta Reference Voltage vs. Temperature 2.0 VREF = 2.5V -0.2 Off-State Current (µA) Delta Vref/Delta VK(mV/V) 0 -0.4 -0.6 -0.8 -1 -1.2 -1.4 -45 1.8 VKA= 36V 1.6 VREF = 0 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 -25 0 25 55 70 100 -40 125 -20 Impedance vs. Temperature Reference Voltage (V) Impedance (1mA-100mA) ohm 40 80 60 100 120 2.510 0.20 0.15 0.10 0.05 -5 25 55 Temperature (oC) Rev.ENG.A 20 Reference Voltage vs. Temperature 0.25 0.00 -45 0 Temperature (oC) Temperature (oC) 85 115 125 VKA= VREF 2.505 IKA=10mA 2.500 2.495 2.490 2.485 -45 -5 25 55 85 115 125 Temperature (oC) 13 AME, Inc. ary n i lim Pre AME431B Adjustable Precision Shunt Regulator n Date Code Rule Marking Date Code Year A A A W W xxx0 A A A W W xxx1 A A A W W xxx2 A A A W W xxx3 A A A W W xxx4 A A A W W xxx5 A A A W W xxx6 A A A W W xxx7 A A A W W xxx8 A A A W W xxx9 n Tape and Reel Dimension SOT-25 P W AME AME PIN 1 Carrier Tape, Number of Components Per Reel and Reel Size 14 Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size SOT-25 8.0±0.1 mm 4.0±0.1 mm 3000pcs 180±1 mm Rev.ENG.A AME, Inc. ary n i lim Pre AME431B Adjustable Precision Shunt Regulator n Tape and Reel Dimension TSOT-25 P W AME AME PIN 1 Carrier Tape, Number of Components Per Reel and Reel Size Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size TSOT-25 8.0±0.1 mm 4.0±0.1 mm 3000pcs 180±1 mm SOT-89 P W AME AME PIN 1 Carrier Tape, Number of Components Per Reel and Reel Size Rev.ENG.A Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size SOT-89 12.0±0.1 mm 4.0±0.1 mm 1000pcs 180±1 mm 15 AME, Inc. ary n i lim Pre AME431B Adjustable Precision Shunt Regulator n Tape and Reel Dimension SOT-23 P W AME AME PIN 1 Carrier Tape, Number of Components Per Reel and Reel Size Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size SOT-23 8.0±0.1 mm 4.0±0.1 mm 3000pcs 180±1 mm TSOT-23 P W AME AME PIN 1 Carrier Tape, Number of Components Per Reel and Reel Size 16 Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size TSOT-23 8.0±0.1 mm 4.0±0.1 mm 3000pcs 180±1 mm Rev.ENG.A AME, Inc. AME431B ary n i lim Pre Adjustable Precision Shunt Regulator n Tape and Reel Dimension SOP-8 P PIN 1 W AME AME Carrier Tape, Number of Components Per Reel and Reel Size Rev.ENG.A Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size SOP-8 12.0±0.1 mm 4.0±0.1 mm 2500pcs 330±1 mm 17 AME, Inc. AME431B ary n i lim Pre Adjustable Precision Shunt Regulator n Package Dimension TO-92-3 (bulk pack) SYMBOLS Top View Side View MILLIMETERS INCHES MIN MAX MIN MAX A 4.32 4.95 0.1701 0.1949 b 0.36 0.51 0.0142 0.0201 E 3.30 3.94 0.1299 0.1551 e 2.41 2.67 0.0949 0.1051 e1 1.14 1.40 0.0449 0.0551 L 12.70 15.49 0.5000 0.6098 R 2.16 2.41 0.0850 0.0949 W 0.41 0.56 0.0161 0.0220 D 4.45 4.95 0.1752 0.1949 Notes: 1. Package outline exclusive of any mold flashes dimension. 2. Package outline exclusive of burr dimension. 3. Lead pitch=2.54mm is bulk pack. 4. Lead pitch=5.08mm is tape pack. TO-92-3 (tape pack) SYMBOLS Top View Side View MILLIMETERS INCHES MIN MAX MIN MAX A 4.32 4.95 0.1701 0.1949 b 0.36 0.51 0.0142 0.0201 E 3.30 3.94 0.1299 0.1551 e 4.98 5.08 0.1961 0.2000 e1 2.49 2.54 0.0980 0.1000 L 12.70 15.49 0.5000 0.6098 R 2.16 2.41 0.0850 0.0949 W 0.41 0.56 0.0161 0.0220 D 4.45 4.95 0.1752 0.1949 Notes: 1. Package outline exclusive of any mold flashes. 2. Package outline exclusive of burr dimension. 3. Lead pitch=2.54mm is bulk pack. 4. Lead pitch=5.08mm is tape pack. 18 Rev.ENG.A AME, Inc. AME431B ary n i lim Pre Adjustable Precision Shunt Regulator n Package Dimension SOT-23 Top View Side View SYMBOLS MAX MIN MAX A 1.00 1.40 0.0394 0.0551 A1 0.00 0.15 0.0000 0.0059 b 0.35 0.50 0.0138 0.0197 D 2.70 3.10 0.1063 0.1220 E 1.40 1.80 0.0551 0.0709 1.90 BSC L H e e θ1 H 2.40 θ1 0.0748 BSC 3.00 0.35BSC L 0 o 10 0.09449 0.11811 0.0138BSC o 0o 10 o A Front View INCHES MIN D E MILLIMETERS A1 b TSOT-23 Top View Side View SYMBOLS MAX MIN MAX A+A1 0.80 1.30 0.0315 0.0512 b 0.35 0.50 0.0138 0.0197 D 2.70 3.10 0.1063 0.1220 E 1.20 1.80 0.0472 0.0709 L H E e H θ1 INCHES MIN D e MILLIMETERS L θ1 1.90 BSC 2.40 3.00 0.35BSC 0o 10o 0.0748 BSC 0.09449 0.11811 0.0138BSC 0o 10o b Rev.ENG.A A1 A Front View 19 AME, Inc. ary n i lim Pre AME431B Adjustable Precision Shunt Regulator n Package Dimension SOT-89 Side View Top View SYMBOLS D D1 A MILLIMETERS MIN MAX 1.39 1.60 INCHES MIN MAX 0.05472 0.06299 H POLISH 0.8REF A1 E A1 C S1 e Front View 0.0315REF C 0.35 0.44 0.01378 0.01732 D 4.39 4.60 0.17283 D1 1.35 1.83 0.05315 0.07205 E 2.28 3.60 0.08976 0.14173 0.1811 e 3.00REF 0.1181REF H 0.70REF 0.0276REF S1 1.50REF 0.0590REF MILLIMETERS INCHES MATTE FINISH A POLISH SOP-8 Top View Side View SYMBOLS MIN MAX MIN MAX A 1.35 1.75 0.05315 0.0689 A1 0.10 0.30 0.00394 0.01181 C E H A2 D L θ Front View A A2 20 A1 e 0.05799 REF B 0.33 0.51 0.01299 0.02008 C 0.19 0.25 0.00748 0.00984 D 4.80 5.33 0.18898 0.20984 E 3.80 4.00 0.14961 0.15748 1.27 BSC e 7o(4X) B 1.473 REF 0.05000 BSC L 0.40 1.27 0.01575 0.05000 H 5.80 6.30 0.22835 0.24803 y - 0.10 θ 0 o 8 o 0 o 0.00394 8o Rev.ENG.A AME, Inc. ary n i lim Pre AME431B Adjustable Precision Shunt Regulator n Package Dimension SOT-25 Top View Side View SYMBOLS MIN E L D H MILLIMETERS θ1 S1 1.20REF A MAX 0.0472REF 0.00 0.15 0.0000 0.0059 b 0.30 0.55 0.0118 0.0217 D 2.70 3.10 0.1063 0.1220 E 1.40 1.80 0.0551 0.0709 1.90 BSC e 2.60 θ1 3.00 0 o 10 0.10236 0.11811 0.0146BSC o 0o 10 o 0.95BSC 0.0374BSC MILLIMETERS INCHES A1 A S1 0.07480 BSC 0.37BSC L Front View MIN A1 H e MAX INCHES b TSOT-25 Top View Side View D SYMBOLS MAX MIN MAX A+A1 0.90 1.25 0.0354 0.0492 b 0.30 0.50 0.0118 0.0197 D 2.70 3.10 0.1063 0.1220 E 1.40 1.80 0.0551 0.0709 E H L MIN θ1 S1 e H e L θ1 Front View 2.40 3.00 0.35BSC 0o 10o 0.95BSC 0.07480 BSC 0.09449 0.11811 0.0138BSC 0o 10 o 0.0374BSC b Rev.ENG.A A1 A S1 1.90 BSC 21 www.ame.com.tw E-Mail: [email protected] Life Support Policy: These products of AME, Inc. are not authorized for use as critical components in life-support devices or systems, without the express written approval of the president of AME, Inc. AME, Inc. reserves the right to make changes in the circuitry and specifications of its devices and advises its customers to obtain the latest version of relevant information. AME, Inc. , May 2007 Document: ORT-DS431B-ENG.A Corporate Headquarter U.S.A.(Subsidiary) AME, Inc. Analog Microelectronics, Inc. 2F, 302 Rui-Guang Road, Nei-Hu District Taipei 114, Taiwan. 3100 De La Cruz Blvd., Suite 201 Santa Clara, CA. 95054-2438 Tel: 886 2 2627-8687 Fax: 886 2 2659-2989 Tel : (408) 988-2388 Fax: (408) 988-2489