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Keysight PD1000A Test Fixture Operating Guide

21

Test Fixture Calibration

Fixture Calibration Procedure

The PD1000A Test Fixtures were developed to test semiconductor devices with

standard device packaging. Each fixture type has its own Calibration Standards

kit.

Calibration procedures for the PD1000A Test Fixtures are the

same. Use the appropriate mechanical calibration standard

devices supplied with your test fixture. Do not use an E-CAL

standard.

The following procedure describes the Keysight E5080A ENA

Vector Network Analyzer Calibration procedure. If you are using a

different analyzer, the procedure may be different. For detailed

calibration procedures, refer to the analyzer’s documentation.

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Содержание PD1000A

Страница 1: ...Keysight PD1000A Power Device Test Fixtures for S Parameter Measurements Part of PD1000A Option SPK Accessory Kit TO 220 TO 247 and Surface Mount Devices Operating Guide ...

Страница 2: ......

Страница 3: ...SIGHT DISCLAIMS ALL WAR RANTIES EITHER EXPRESS OR IMPLIED WITH REGARD TO THIS MANUAL AND ANY INFORMATION CONTAINED HEREIN INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MER CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE KEYSIGHT SHALL NOT BE LIABLE FOR ERRORS OR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES IN CONNECTION WITH THE FURNISHING USE OR PERFORMANCE OF THIS DOCUMENT OR OF ANY INFOR ...

Страница 4: ...lved should remove instrument covers Always disconnect the power cable and any external circuits before removing the instrument cover Keep away from live circuits Operating personnel must not remove equipment covers or shields Proce dures involving the removal of covers and shields are for use by service trained personnel only Under certain conditions dangerous voltages may exist even with the equ...

Страница 5: ...ating pro cedure or practice that if not cor rectly performed or adhered to could result in personal injury or death Do not proceed beyond a WARNING notice until the indi cated conditions are fully under stood and met Products display the following sym bols Indicates that antistatic precautions should be taken v Electro Magnetic Compatibility EMC Information The Test Solution is sensitive to elect...

Страница 6: ...vi ...

Страница 7: ...est Fixture 17 Test Fixture Calibration 19 Required Equipment 19 Fixture Calibration Procedure 20 Inserting Cal Standards into the PD1000A TO 220 TO 247 Test Fixtures 26 Input Standards 26 Output Standards 27 THROUGH Standard 27 Inserting the Cal Standards into the PD1000A SMD Test Fixture 28 Customizing an SMD Test Fixture 29 Adjusting the Height of the Push Rod 35 Troubleshooting 36 SMA Cables 3...

Страница 8: ...viii Keysight PD1000A Test Fixture Operating Guide ...

Страница 9: ...ch damage is not covered by the warranty Returning for Service If you need to return a test fixture for service attach a tag indicating the type of service required your return address and model number of the device to be repaired Repackaging the device requires original shipping containers and materials or their equivalents Keysight Technologies can provide packaging materials identical to the or...

Страница 10: ...PN 1250 2879 2 SMA male to SMA Male Cable Keysight PN 5062 6682 7 inch cable 2 Stackable Banana Plug each end Cables Keysight PN 8121 2006 Black cable 8121 2007 Red cable 8 4 red and 4 black PD1000A BST Bias Tee Networks Keysight PN PD1000 67903 PD1000 67904 Two are required for the PD1000A system Calibration Standards for each test fixture Calibration Standards for TO 247 Test Fixture shown on le...

Страница 11: ...igure shows a static safe work station using two types of ESD protection Conductive table mat and wrist strap combination Conductive floor mat and heel strap combination Both types when used together provide a significant level of ESD protection Of the two only the table mat and wrist strap combination provides adequate ESD protection when used alone To ensure user safety the static safe accessori...

Страница 12: ...sion SMU on top of the E2080A ENA providing bias voltage to the two Bias T networks Figure 1 General Test Setup for the PD1000A S Parameter Test System B2902A SMU E5080A ENA Device Test Fixture Bias T Bias T Network Analyzer B2902A Precision Source Measure Unit for the Gate for the Drain or Collector Surface Mount Device Test Fixture shown Do not excessively bend flex or stretch the SMA cables Che...

Страница 13: ...or TO 247 Test Fixture Figure 3 shows the Surface Mount Device SMD Test Fixture Figure 2 PD1000A Bias T Networks with TO 220 and TO 247 Test Fixture Figure 3 PD1000A Bias T Networks with PD1000A SMD Test Fixture Test Fixture TO 247 Test Fixture shown Bias T for the Gate to ENA Connection Bias T for the Drain Collector to ENA Connection Bias T for the Drain Collector to ENA Port 2 Surface Mount Dev...

Страница 14: ...as T for the RF input Gate to the device under test DUT Channel 2 on the SMU rear panel connects to the PD1000A Bias T for the RF output drain or collector of the DUT Figure 4 PD1000A Bias T Networks used with the B2902A SMU B2902A CH2 Rear Panel to PD1000A Drain Collector Bias T B2902A CH1 Front Panel to PD1000A Gate Bias T PD1000A Bias T for the Gate PD1000A Bias T for Drain PD1000A Test Fixture...

Страница 15: ... TO 220 style case but with an isolated tab Some device data sheets refer to a case style ITO 220 which refers to a TO 220 style case but with an isolated tab The tab is used only as a heat sink Figure 5 Keysight PD1000A TO 247 and TO 220 Test Fixture Figure 6 Typical TO 220 Device and TO 247 Device Packaging Gate Female SMA Connector to Gate PD1000A Bias T Drain or Collector Source or Emitter Fem...

Страница 16: ...The sockets on the test fixture are spring loaded to ensure proper contact with the device leads Press the device all the way into the fixture sockets Removing the Device from the Fixture To remove the device form the fixture hold the fixture securely down on a table or workbench Carefully and slowly lift the device straight up from the fixture Do not rock the device back and forth to remove it Fi...

Страница 17: ...rientation when inserting devices Gently place the device into the Frame Guide of the Test Fixture Ensure it is properly aligned with the PC Board contact pattern Ensure the SMD device fits securely and completely into the positioning frame guide Press the Test Fixture handle down until it latches to firmly hold the device in place while being tested The frame guide provided with the SMD test fixt...

Страница 18: ... SMD device does not have the pin out shown below or if your device has different dimensions than the standard device you will need to create a custom frame and PC Board Refer to Customizing an SMD Test Fixture on page 30 Figure 9 Inserting Surface Mount Devices into the SMD Test Fixture Frame Guide Pin 1 Gate Tab Drain or Collector All other pins Source or Emitter Typical 7 pin TO 263 Device ...

Страница 19: ...e Calibration Standards are provided with your test fixture and are shown in Figure 10 and Figure 11 Test Fixture to be calibrated Either the TO 220 TO 247 or the SMD fixture Two downloadable Calibration Kit files used for the three test fixtures TO_Fixture_In xkt for the Input Port and the TO_Fixture_Out xkt for the Output Port If your E5080A has an Internet connection download these files direct...

Страница 20: ...OP Short labeled GSH 50Ω labeled G50 termination Output Port Open labeled DOP Short labeled SDH 50Ω labeled D50 termination and Through THR Additional or replacement Calibration Standards are available at www keysight com find PD1000A Figure 10 Calibration Standards for PD1000A TO 247 Test Fixture Calibration Standards for the TO 220 fixture are similar but with narrower pin spacing Figure 11 Cali...

Страница 21: ... Standards kit Calibration procedures for the PD1000A Test Fixtures are the same Use the appropriate mechanical calibration standard devices supplied with your test fixture Do not use an E CAL standard The following procedure describes the Keysight E5080A ENA Vector Network Analyzer Calibration procedure If you are using a different analyzer the procedure may be different For detailed calibration ...

Страница 22: ...Press the CAL button 3 Touch CAL Sets Cal Kits Cal Kit 4 Click the Import button 5 Navigate to where you stored the two Cal Kit files 6 Select the TO_Fixture_In xkt file 7 Click Open 8 Select the ENA folder D User PNACalKits user 9 Repeat steps 3 through 6 for the TO_Fixture_Out xkt file 10 If you have not already saved the xkt files select both files and click Save to save them to a location on t...

Страница 23: ...t Ports screen 4 Touch Other Cals Smart Cal 5 Select 2PortCal Specify Port 1 as the First Port and Port 2 as the Second Port Figure 12 Calibration Setup for the PD1000A SMD Test Fixture Setup for the TO 220 TO 247 Fixtures is similar E5080A ENA Bias T Bias T Network Analyzer B2902A Precision Source Measure Unit Device Test Fixture Surface Mount Device fixture shown for Gate for Drain Collector ...

Страница 24: ...ixtures TO 220 TO 247 and SMD 9 Click Next This opens the following screen 10 Insert the Port 1 OPEN Cal Standard into the test fixture The OPEN Cal Standard goes between the Gate and Drain Collector Click Measure The remainder of this procedure involves inserting the Calibration Standards into the Test Fixtures Refer to Inserting Cal Standards into the PD1000A TO 220 TO 247 Test Fixtures on page ...

Страница 25: ...N Cal Standard into the test fixture The Port 2 OPEN Cal Standard goes between the Source Emitter and Drain Collector Click Measure Note for the TO 220 TO 247 Test Fixtures use the same OPEN Cal Standard as before but turn it around to fit into the correct sockets on the test fixture 14 Insert the Port 2 SHORT Cal Standard into the test fixture The SHORT Cal Standard goes between the Source Emitte...

Страница 26: ...rain Collector Click Measure 16 Insert the THROUGH Calibration Standard into the Test Fixture Click Measure 17 In this screen the display shows the calculated delay through the THROUGH Cal Standard Ensure that the displayed value is less than 0 2 nS Click OK 18 Click Save As User CalSet Click Finish to complete the calibration procedure 19 Remove the Calibration Standard from the Test Fixture ...

Страница 27: ... Fixtures is the same as inserting your device to be tested This section shows the orientation of the Calibration Standards inserted into the Test Fixture Input Standards Two pins on each OPEN SHORT and 50 Ω LOAD Calibration Standards The Calibration Standards connects between the Gate and Source Emitter Important Notice the orientation of each standard Figure 13 Inserting the Input OPEN SHORT LOA...

Страница 28: ...se are the same standards used on the Input The Calibration Standards connect between the Drain Collector and Source Emitter THROUGH Standard Two pins on the THROUGH Standard There is no label on this standard It connects between the Gate and the Drain Collector Figure 14 Inserting Output OPEN LOAD or Short Standards into the Test Fixture Figure 15 Inserting the THROUGH Standard into the Test Fixt...

Страница 29: ...with the SMD Test Fixture for fixture calibration Inserting Calibration Standards into the Test Fixture is the same as inserting your device to be tested This section shows the orientation of the Calibration Standards inserted into the Test Fixture Important Notice the orientation of the standards see Figure 16 below Insert all seven Calibration Standards with the same orientation Figure 16 Placin...

Страница 30: ...ause each SMD devices is unique the customer is required to create and assemble a PC board frame guide and Calibration Standards specific to the device s they intend to test This section provides general guidelines to customize the SMD test fixture Detailed CAD files dxf for the PC Board the Frame Guide and Calibration Standards for standard MOSFET and IGBT devices are available as part of the PD1...

Страница 31: ...d to the edges of the board to permit soldering the frame SMA center connector pins to the PC board Figure 18 below shows the microstrip line PC board provided with the PD1000A SMD Test Fixture Yours will be different TO 263 7 package shown for orientation and size reference Dimensions shown are the critical dimensions all dimensions are in mm Shaded area represents copper clad on the PC board Sev...

Страница 32: ... a give impedance Zo The substrate parameters εr and h are required Figure 19 Microstrip Line Example for 50 Ω Impedance For the following equation the distance between the RF trace line and the GND should be greater than twice thne thickness of teh PC Board trace sd S W ZZZZ To use the following microstrip substrate equations the distance between the RF trace line and the GND must be greater than...

Страница 33: ...ilable from PBI Advanced Materials http www pbi am com contents esd index html lang EN This material is easily machined to size and deburred The following diagram shows the dimensions of the Frame Guide supplied with the SMD Test Fixture You Frame Guide may vary Screw holes are for M2 screws Figure 20 PD1000A SMD Frame Guide Outside Dimensions Inside dimensions are for a TO 263 7 package TO 263 7 ...

Страница 34: ... Source Emitter Port 1 50 Ω Load Gate to Source Emitter Use a 50 Ω SMD resistor The resistor must go on the top side of the PC board not the trace side See Figure 21 below Port 2 Open No connection Drain Collector to Source Emitter Port 2 Short Direct connection Drain Collector to Source Emitter Port 2 50 Ω Load Drain Collector to Source Emitter Use a 50 Ω SMD resistor The resistor must go on the ...

Страница 35: ... Fixture 1 Place the PC Board on the PD1000A SMD Test Fixture The copper traces must face upward Slide the PC board under the SMA connector center pins 2 Attach the PC Board to the SMD Fixture using four T6 hex head screws provided with the SMD Test Fixture Do not over tighten the screws 3 Solder the PC Board to the SMA Connectors as shown below Be careful to not damage the SMA connectors 4 Place ...

Страница 36: ...ush rod on the test fixture by loosening the 1 5 mm hex socket Allen set screw on the side of the push rod head and sliding the head up or down then tightening the set screw See the figure below Figure 23 Assembling the SMD Test Fixture Keysight SMD Fixture with SMA Connectors Custom Single sided PC Board Frame guide to place SMD Vertically conductive sheet Figure 24 Allen Screw to Adjust the Heig...

Страница 37: ... Resistance of the Calibration Standards A simple verification test for the Calibration Standards is to measure the DC resistance of the standards To the TO 220 and TO 247 Measure the resistance between the two Cal Standard pins or SMD pads As shown below the Calibration Standards should measure open infinite resistance short 0 Ω 50 Ω and pass through Gate to Drain Collector Figure 25 Damaged SMA ...

Страница 38: ...n Standards Gate to Source Emitter Cal Standard Drain Collector to Source Emitter Cal Standard Top view of PC board Bottom view of PC board 0 Ω short or 50 Ω SMD Resistor Measure resistance here between the Gate Pin 1 and the Source Emitter pads Measure resistance here between the Drain Collector and the Source Emitter pads ...

Страница 39: ... yourself and all devices Wear a grounded wrist strap and work on a grounded conductive table mat 2 Visually inspect the connectors If necessary clean the connectors 3 Carefully align the connectors As you make the actual connection be sure the connectors align perfectly 4 Push the connectors straight together Do not twist or screw the connectors together 5 Engage the connector nut of the connecto...

Страница 40: ...f one of the connectors is fixed as on a test port However it is recommended that you use a second open end wrench to keep the body of the device from turning 2 Position both wrenches within 90 degrees of each other before applying force Wrenches opposing each other greater than 90 degrees apart will cause a lifting action that can misalign and stress the connections of the device involved This is...

Страница 41: ...onnections To avoid lateral bending force on the connector mating plane surfaces always support the devices and connections 1 Use an open end wrench or spanner wrench to prevent the device body from turning 2 Use another open end wrench or the torque wrench to loosen the connector nut 3 Complete the separation by hand turning only the connector nut 4 Pull the connectors straight apart without twis...

Страница 42: ...nt free swab Clean the connector threads Let the alcohol evaporate then blow the threads dry with a gentle stream of clean low pressure compressed air or nitrogen Always completely dry a connector before you reassemble or use it Always use protective eye wear when using compressed air or nitrogen Keep isopropyl alcohol away from heat sparks and flame Store in a tightly closed container Isopropyl a...

Страница 43: ......

Страница 44: ...This information is subject to change without notice Keysight Technologies 2019 Printed in Malaysia Edition 3 January 2019 PD1000 90005 PD1000 90005 ...

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