HMC-XDB112 v00.0907 FREQUENCY MULTIPLIERS - PASSIVE - CHIP 2 GaAs MMIC PASSIVE FREQUENCY DOUBLER, 10 - 15 GHz INPUT Typical Applications Features This HMC-XDB112 is ideal for: Conversion Loss: 13 dB • Point-to-Point Radios Passive: No DC Bias Required • VSAT Input Drive: +13 dBm • Test Instrumentation High Fo Isolation: 30 dB • Military & Space Die Size: 2.2 x 0.65 x 0.1 mm • Clock Generation General Description Functional Diagram The HMC-XDB112 is a monolithic Passive Frequency Doubler which utilizes GaAs Heterojunction Bipolar Transistor (HBT) technology, and is targeted to high volume applications where frequency doubling of a lower frequency is more economical than directly generating a higher frequency. All bond pads and the die backside are Ti/Au metallized and the HBT devices are fully passivated for reliable operation. The HMC-XDB112 Passive Doubler MMIC is compatible with conventional die attach methods, as well as thermocompression and thermosonic wire bonding, making it ideal for MCM and hybrid microcircuit applications. All data shown herein is measured with the chip in a 50 Ohm environment and contacted with RF probes. Electrical Specifi cations*, TA = 25 °C, Pin = +13 dBm Parameter Min. Typ. Max. 10 - 15 GHz Frequency Range Output 20 - 30 GHz Conversion Loss 13 dB Fo Isolation with respect to output 30 dB *Unless otherwise indicated, all measurements are from probed die 2 - 68 Units Frequency Range Input For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com HMC-XDB112 v00.0907 GaAs MMIC PASSIVE FREQUENCY DOUBLER, 10 - 15 GHz INPUT Output Power Conversion Loss 5 -2 0 -4 -5 -6 -8 -10 -12 -14 -16 2 -10 -15 Fin 2xFin -20 -25 -30 -35 -40 -18 -45 -20 -50 10 11 12 13 FREQUENCY (GHz) 14 15 10 11 12 13 14 INPUT FREQUENCY (GHz) For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com 15 FREQUENCY MULTIPLIERS - PASSIVE - CHIP OUTPUT POWER (dBm) CONVERSION LOSS (dB) 0 2 - 69 HMC-XDB112 v00.0907 GaAs MMIC PASSIVE FREQUENCY DOUBLER, 10 - 15 GHz INPUT Outline Drawing FREQUENCY MULTIPLIERS - PASSIVE - CHIP 2 2 - 70 ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS Die Packaging Information [1] Standard Alternate WP - 4 [2] [1] Refer to the “Packaging Information” section for die packaging dimensions. [2] For alternate packaging information contact Hittite Microwave Corporation. NOTES: 1. ALL DIMENSIONS ARE IN INCHES [MM]. 2. TYPICAL BOND PAD IS .004” SQUARE. 3. BACKSIDE METALLIZATION: GOLD. 4. BACKSIDE METAL IS GROUND. 5. BOND PAD METALLIZATION: GOLD. 6. CONNECTION NOT REQUIRED FOR UNLABELED BOND PADS. 7. OVERALL DIE SIZE ±.002” For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com HMC-XDB112 v00.0907 GaAs MMIC PASSIVE FREQUENCY DOUBLER, 10 - 15 GHz INPUT Pad Descriptions Function Description 1 RFIN This pad is AC coupled and matched to 50 Ohms. 2 RFOUT This pad is AC coupled and matched to 50 Ohms. Die Bottom GND Die Bottom must be connected to RF/DC ground. Interface Schematic For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com 2 FREQUENCY MULTIPLIERS - PASSIVE - CHIP Pad Number 2 - 71 HMC-XDB112 v00.0907 GaAs MMIC PASSIVE FREQUENCY DOUBLER, 10 - 15 GHz INPUT Assembly Diagram FREQUENCY MULTIPLIERS - PASSIVE - CHIP 2 2 - 72 Note 1: Best performance obtained from use of <10 mil (long) by 3 by 0.5 mil ribbons on input and output. For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com HMC-XDB112 v00.0907 GaAs MMIC PASSIVE FREQUENCY DOUBLER, 10 - 15 GHz INPUT Mounting & Bonding Techniques for Millimeterwave GaAs MMICs 50 Ohm Microstrip transmission lines on 0.127mm (5 mil) thick alumina thin film substrates are recommended for bringing RF to and from the chip (Figure 1). If 0.254mm (10 mil) thick alumina thin film substrates must be used, the die should be raised 0.150mm (6 mils) so that the surface of the die is coplanar with the surface of the substrate. One way to accomplish this is to attach the 0.102mm (4 mil) thick die to a 0.150mm (6 mil) thick molybdenum heat spreader (moly-tab) which is then attached to the ground plane (Figure 2). 0.102mm (0.004”) Thick GaAs MMIC 0.076mm (0.003”) RF Ground Plane Microstrip substrates should be placed as close to the die as possible in order to minimize bond wire length. Typical die-to-substrate spacing is 0.076mm to 0.152 mm (3 to 6 mils). 0.127mm (0.005”) Thick Alumina Thin Film Substrate Figure 1. Handling Precautions Follow these precautions to avoid permanent damage. Storage: All bare die are placed in either Waffle or Gel based ESD protective containers, and then sealed in an ESD protective bag for shipment. Once the sealed ESD protective bag has been opened, all die should be stored in a dry nitrogen environment. Cleanliness: Handle the chips in a clean environment. DO NOT attempt to clean the chip using liquid cleaning systems. Static Sensitivity: strikes. 0.102mm (0.004”) Thick GaAs MMIC Wire Bond 0.076mm (0.003”) RF Ground Plane Follow ESD precautions to protect against ESD Transients: Suppress instrument and bias supply transients while bias is applied. Use shielded signal and bias cables to minimize inductive pick-up. 2 Wire Bond 0.150mm (0.005”) Thick Moly Tab 0.254mm (0.010”) Thick Alumina Thin Film Substrate Figure 2. General Handling: Handle the chip along the edges with a vacuum collet or with a sharp pair of bent tweezers. The surface of the chip has fragile air bridges and should not be touched with vacuum collet, tweezers, or fingers. Mounting The chip is back-metallized and can be die mounted with AuSn eutectic preforms or with electrically conductive epoxy. The mounting surface should be clean and flat. Eutectic Die Attach: A 80/20 gold tin preform is recommended with a work surface temperature of 255 °C and a tool temperature of 265 °C. When hot 90/10 nitrogen/hydrogen gas is applied, tool tip temperature should be 290 °C. DO NOT expose the chip to a temperature greater than 320 °C for more than 20 seconds. No more than 3 seconds of scrubbing should be required for attachment. FREQUENCY MULTIPLIERS - PASSIVE - CHIP The die should be attached directly to the ground plane eutectically or with conductive epoxy (see HMC general Handling, Mounting, Bonding Note). Epoxy Die Attach: Apply a minimum amount of epoxy to the mounting surface so that a thin epoxy fillet is observed around the perimeter of the chip once it is placed into position. Cure epoxy per the manufacturer’s schedule. Wire Bonding RF bonds made with 0.003” x 0.0005” ribbon are recommended. These bonds should be thermosonically bonded with a force of 40-60 grams. DC bonds of 0.001” (0.025 mm) diameter, thermosonically bonded, are recommended. Ball bonds should be made with a force of 40-50 grams and wedge bonds at 18-22 grams. All bonds should be made with a nominal stage temperature of 150 °C. A minimum amount of ultrasonic energy should be applied to achieve reliable bonds. All bonds should be as short as possible, less than 12 mils (0.31 mm). For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com 2 - 73