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| MA4E2502 Series SURMOUNTTM Low, Medium, and High Barrier Silicon Schottky Diodes Features * Extremely Low Parasitic Capitance and Inductance * Surface Mountable in Microwavable Circuits, No Wirebonds Required * Rugged HMIC Construction with Polyimide Scratch Protection * Reliable, Multilayer Metalization with a Diffusion Barrier, 100% Stabilization Bake (300C, 16 hours) * Lower Susceptibility to ESD Damage M/A-COM Products Rev. V7 The MA4E2502 Family of Surmount Schottky diodes are recommended for use in microwave circuits through Ku band frequencies for lower power applications such as mixers, sub-harmonic mixers, detectors, and limiters. The HMIC construction facilitates the direct replacement of more fragile beam lead diodes with the corresponding Surmount diode, which can be connected to a hard or soft substrate circuit with solder. Case Style 1246 Description and Applications The MA4E2502 SURMOUNTTM Series Diodes are Silicon Low, Medium, and High Barrier Schottky Devices fabricated with the patented Heterolithic Microwave Integrated Circuit (HMIC) process. HMIC circuits consist of Silicon pedestals which form diodes or via conductors embedded in a glass dielectric, which acts as the low dispersion, microstrip transmission medium. The combination of silicon and glass allows HMIC devices to have excellent loss and power dissipation characteristics in a low profile, reliable device. The Surmount Schottky devices are excellent choices for circuits requiring the small parasitics of a beam lead device coupled with the superior mechanical performance of a chip. The Surmount structure employs very low resistance silicon vias to connect the Schottky contacts to the metalized mounting pads on the bottom surface of the chip. These devices are reliable, repeatable, and a lower cost performance solution to conventional devices. They have lower susceptibility to electrostatic discharge than conventional beam lead Schottky diodes. The multilayer metallization employed in the fabrication of the Surmount Schottky junctions includes a platinum diffusion barrier, which permits all devices to be subjected to a 16-hour non-operating stabilization bake at 300C. The "0502" outline allows for Surface Mount placement and multi-functional polarity orientations. DIM A B C D Sq. E INCHES MIN. 0.0445 0.0169 0.0040 0.0128 0.0128 MILLIMETERS MIN. 1.130 0.430 0.102 0.325 0.325 MAX. 0.0465 0.0189 0.0080 0.0148 0.0148 MAX. 1.180 0.480 0.203 0.375 0.375 1 ADVANCED: Data Sheets contain information regarding a product MA-COM Technical Solutions is considering for development. Performance is based on target specifications, simulated results, and/ or prototype measurements. Commitment to develop is not guaranteed. PRELIMINARY: Data Sheets contain information regarding a product MA-COM Technical Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. Commitment to produce in volume is not guaranteed. * North America Tel: 800.366.2266 / Fax: 978.366.2266 * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. MA-COM Technical Solutions and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. MA4E2502 Series SURMOUNTTM Low, Medium, and High Barrier Silicon Schottky Diodes Electrical Specifications @ 25C Model Number MA4E2502L M/A-COM Products Rev. V7 Type Recommended Freq. Range DC - 18 GHz Vf @ 1 mA (mV) 330 Max 300 Typ 470 Max 420 Typ 700 Max 650 Typ Vb @ 10 uA (V) 3 Min 5 Typ 3 Min 5 Typ 3 Min 5 Typ Ct @ 0 V (pF) 0.12 Max 0.10 Typ 0.12 Max 0.10 Typ 0.12 Max 0.10 Typ Rt Slope Resistance (Vf1-Vf2)/(10.5mA-9.5mA) () 16 Typ 20 Max 12 Typ 18 Max 11 Typ 15 Max Low Barrier Medium Barrier High Barrier MA4E2502M DC - 18 GHz MA4E2502H DC - 18 GHz 1. Rt is the dynamic slope resistance where Rt = Rs + Rj, where Rj = 26 / Idc (Idc is in mA) Handling All semiconductor chips should be handled with care to avoid damage or contamination from perspiration and skin oils. The use of plastic tipped tweezers or vacuum pickups is strongly recommended for individual components. The top surface of the die has a protective polyimide coating to minimize damage. The rugged construction of these Surmount devices allows the use of standard handling and die attach techniques. It is important to note that industry standard electrostatic discharge (ESD) control is required at all times, due to the sensitive nature of Schottky junctions. Bulk handling should insure that abrasion and mechanical shock are minimized. Die Bonding Die attach for these devices is made simple through the use of surface mount die attach technology. Mounting pads are conveniently located on the bottom surface of these devices, and are opposite the active junction. The devices are well suited for high temperature solder attachment onto hard substrates. 80Au/20Sn and Sn63/Pb37 solders are acceptable for usage. Die attach with Electrically Conductive Silver Epoxy is Not Recommended. For Hard substrates, we recommend utilizing a vacuum tip and force of 60 to 100 grams applied uniformly to the top surface of the device, using a hot gas bonder with equal heat applied across the bottom mounting pads of the device. When soldering to soft substrates, it is recommended to use a lead-tin interface at the circuit board mounting pads. Position the die so that its mounting pads are aligned with the circuit board mounting pads. Reflow the solder paste by applying equal heat to the circuit at both die-mounting pads. The solder joint must Not be made one at a time, creating unequal heat flow and thermal stress. Solder reflow should Not be performed by causing heat to flow through the top surface of the die. Since the HMIC glass is transparent, the edges of the mounting pads can be visually inspected through the die after die attach is completed. Absolute Maximum Ratings @ 25C (unless otherwise noted) 1 Parameter Operating Temperature Storage Temperature Junction Temperature Forward Current Reverse Voltage RF C.W. Incident Power RF & DC Dissipated Power Electrostatic Discharge 2 ( ESD ) Classification 2 2. Human Body Model ADVANCED: Data Sheets contain information regarding a product MA-COM Technical Solutions is considering for development. Performance is based on target specifications, simulated results, and/ or prototype measurements. Commitment to develop is not guaranteed. PRELIMINARY: Data Sheets contain information regarding a product MA-COM Technical Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. Commitment to produce in volume is not guaranteed. Absolute Maximum -40C to +125C -40C to +150C +175C 20 mA 5V +20 dBm 50 mW Class 0 * North America Tel: 800.366.2266 / Fax: 978.366.2266 * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. MA-COM Technical Solutions and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. MA4E2502 Series SURMOUNTTM Low, Medium, and High Barrier Silicon Schottky Diodes Applications Section MA4E2502L-1246 Frequency (GHz) vs. Output Voltage (V) 10 -20 dBm Output Voltage (V) 1 -10 dBm 0 dBm +10 dBm +20 dBm 0.1 M/A-COM Products Rev. V7 0.01 8 11 14 17 20 23 Frequency (GHz) MA4E2502L-1246 Input Pow er (dBm ) vs. Output Voltage (V) 10 Output Voltage (V) 1 8 GHz 18 GHz 0.1 23 GHz 0.01 -20 -15 -10 -5 Input Pow er (dBm ) 0 5 10 The MA4E2502L-1246 chip was evaluated in a detector circuit in which the Schottky diode terminates a 50 ohm transmission line on a duroid substrate. The chip was attached to the terminal of a 3.5mm connector and the output voltage was measured through a bias tee on a voltmeter. Matching was not attempted. 3 ADVANCED: Data Sheets contain information regarding a product MA-COM Technical Solutions is considering for development. Performance is based on target specifications, simulated results, and/ or prototype measurements. Commitment to develop is not guaranteed. PRELIMINARY: Data Sheets contain information regarding a product MA-COM Technical Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. Commitment to produce in volume is not guaranteed. * North America Tel: 800.366.2266 / Fax: 978.366.2266 * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. MA-COM Technical Solutions and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. MA4E2502 Series SURMOUNTTM Low, Medium, and High Barrier Silicon Schottky Diodes MA4E2502L Low Barrier SPICE PARAMETERS Is (nA) 26 M/A-COM Products Rev. V7 Rs () 12.8 N 1.20 Cj0 (pF) 1.0 E-2 M 0.5 Ik (mA) 14 Cjpar (pF) 9.0 E-2 Vj (V) 8.0 E-2 FC 0.5 BV (V) 5.0 IBV (mA) 1.0 E-2 MA4E2502M Medium Barrier SPICE PARAMETERS Is (mA) 5 E-1 Rs () 9.6 N 1.20 Cj0 (pF) 1.0 E-02 M 0.5 Ik (mA) 10 Cjpar (pF) 9.0 E-2 Vj (V) 8.0 E-2 FC 0.5 BV (V) 5.0 IBV (mA) 1.0 E-2 MA4E2502H High Barrier SPICE PARAMETERS Is (mA) 5.7 E-1 Rs () 6.5 N 1.20 Cj0 (pF) 1.0 E-02 M 0.5 Ik (mA) 4 Cjpar (pF) 9.0 E-2 Vj (V) 8.0 E-2 FC 0.5 BV (V) 5.0 IBV (mA) 1.0 E-2 Circuit Mounting Dimensions (Inches) 4 ADVANCED: Data Sheets contain information regarding a product MA-COM Technical Solutions is considering for development. Performance is based on target specifications, simulated results, and/ or prototype measurements. Commitment to develop is not guaranteed. PRELIMINARY: Data Sheets contain information regarding a product MA-COM Technical Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. Commitment to produce in volume is not guaranteed. * North America Tel: 800.366.2266 / Fax: 978.366.2266 * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. MA-COM Technical Solutions and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. MA4E2502 Series SURMOUNTTM Low, Medium, and High Barrier Silicon Schottky Diodes Ordering Information Part Number MA4E2502L-1246W MA4E2502L-1246 MA4E2502L-1246T MADS-002502-1246LP MA4E2502M-1246W MA4E2502M-1246 MA4E2502M-1246T MADS-002502-1246MP MA4E2502H-1246W MA4E2502H-1246 MA4E2502H-1246T MADS-002502-1246HP M/A-COM Products Rev. V7 Package Wafer on Frame Die in Carrier Surf Tape on Reel Pocket Tape on Reel Wafer on Frame Die in Carrier Surf Tape on Reel Pocket Tape on Reel Wafer on Frame Die in Carrier Surf Tape on Reel Pocket Tape on Reel MA4E2502 Diode Schematic Schematic Values Model Number MA4E2502L MA4E2502M MA4E2502H 5 Ls (nH) 0.8 0.8 0.8 Rs () 12.8 9.6 6.5 Rj () 26 / Idc (mA) 26 / Idc (mA) 26 / Idc (mA) Ct (pF) 0.10 0.10 0.10 ADVANCED: Data Sheets contain information regarding a product MA-COM Technical Solutions is considering for development. Performance is based on target specifications, simulated results, and/ or prototype measurements. Commitment to develop is not guaranteed. PRELIMINARY: Data Sheets contain information regarding a product MA-COM Technical Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. Commitment to produce in volume is not guaranteed. * North America Tel: 800.366.2266 / Fax: 978.366.2266 * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information. MA-COM Technical Solutions and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. |
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