12.0-40.0 GHz GaAs MMIC Image Reject Mixer M1001 November 2005 - Rev 21-Nov-05 Features Chip Device Layout Fundamental Image Reject Mixer 8.0 dB Conversion Loss 20.0 dB Image Rejection +25.0 dBm Input Third Order Intercept (IIP3) 100% On-Wafer RF Testing 100% Visual Inspection to MIL-STD-883 Method 2010 General Description Mimix Broadband’s 12.0-40.0 GHz GaAs MMIC fundamental image reject mixer can be used as an up- or down-converter. The device has a conversion loss of 8.0 dB with a 20.0 dB image rejection across the band. I and Q mixer outputs are provided and an external 90 degree hybrid is required to select the desired sideband. This MMIC uses Mimix Broadband’s 0.15 µm GaAs PHEMT device model technology, and is based upon electron beam lithography to ensure high repeatability and uniformity. The chip has surface passivation to protect and provide a rugged part with backside via holes and gold metallization to allow either a conductive epoxy or eutectic solder die attach process. This device is well suited for Millimeter-wave Point-to-Point Radio, LMDS, SATCOM and VSAT applications. Absolute Maximum Ratings Gate Bias Voltage (Vg) Input Power (RF Pin) Input Power (IF Pin) Storage Temperature (Tstg) Operating Temperature (Ta) +0.3 VDC +20.0 dBm +20.0 dBm -65 to +165 OC -55 to +125 OC Electrical Characteristics (Ambient Temperature T = 25o C) Parameter Frequency Range (RF) Upper Side Band Frequency Range (RF) Lower Side Band Frequency Range (LO) Frequency Range (IF) RF Return Loss (S11) IF Return Loss (S22) LO Return Loss (S33) Conversion Loss (S21) LO Input Drive (PLO) Image Rejection Isolation LO/RF Isolation LO/IF Isolation RF/IF Input Third Order Intercept (IIP3) Gate Bias Voltage (Vg1) Units GHz GHz GHz GHz dB dB dB dB dBm dBc dB dB dB dBm VDC Min. 12.0 12.0 8.0 DC -2.0 Typ. 10.0 TBD TBD 8.0 +12.0 20.0 16.0 TBD TBD +25.0 -0.5 Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com Max. 40.0 38.0 42.0 4.0 +0.1 Page 1 of 9 Characteristic Data and Specifications are subject to change without notice. ©2005 Mimix Broadband, Inc. Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept their obligation to be compliant with U.S. Export Laws. 12.0-40.0 GHz GaAs MMIC Image Reject Mixer M1001 November 2005 - Rev 21-Nov-05 Mixer Measurements XM1001 Vg=-0.5 VDC, LSB LO=+12.0 dBm, IF=2.0 GHz, RF=-20.0 dBm, ~4840 Devices Conversion Loss (dB) Conversion Loss (dB) XM1001 Vg=-0.5 VDC, USB LO=+12.0 dBm, IF=2.0 GHz, RF=-20.0 dBm, ~4840 Devices 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 -13 -14 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 30.0 32.0 34.0 36.0 38.0 40.0 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 -13 -14 10.0 12.0 14.0 16.0 18.0 20.0 RF Frequency (GHz) Max Median Mean -3sigma Max Image Rejection (dBc) Image Rejection (dBc) -5 -10 -15 -20 -25 -30 -35 -40 -45 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 30.0 32.0 34.0 36.0 38.0 40.0 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 -50 -55 -60 10.0 12.0 14.0 16.0 18.0 20.0 RF Frequency (GHz) Max Median Mean 26.0 28.0 30.0 32.0 34.0 36.0 38.0 40.0 Median Mean 36.0 38.0 40.0 -3sigma XM1001 Vg=-0.5 VDC, LSB LO=+12.0 dBm, IF=2.0 GHz, RF=-20.0 dBm, ~4840 Devices XM1001 Vg=-0.5 VDC, USB LO=+12.0 dBm, IF=2.0 GHz, RF=-20.0 dBm, ~4840 Devices 12.0 24.0 RF Frequency (GHz) 0 -50 10.0 22.0 22.0 24.0 26.0 28.0 30.0 32.0 34.0 RF Frequency (GHz) -3sigma Max Median Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com Mean -3sigma Page 2 of 9 Characteristic Data and Specifications are subject to change without notice. ©2005 Mimix Broadband, Inc. Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept their obligation to be compliant with U.S. Export Laws. 12.0-40.0 GHz GaAs MMIC Image Reject Mixer M1001 November 2005 - Rev 21-Nov-05 Mixer Measurements (cont.) XM1001 Vg=-0.5 VDC, LSB LO=+12.0 dBm, IF=2.0 GHz, RF=-20.0 dBm, ~140 Devices Noise Figure (dB) Noise Figure (dB) XM1001 Vg=-0.5 VDC, USB LO=+12.0 dBm, IF=2.0 GHz, RF=-20.0 dBm, ~140 Devices 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 30.0 32.0 34.0 36.0 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 8.0 10.0 12.0 14.0 16.0 RF Frequency (GHz) Max Median Mean 18.0 20.0 22.0 24.0 26.0 28.0 30.0 32.0 RF Frequency (GHz) -3sigma Max Median Mean -3sigma RF Return Loss (dB) XM1001 Vg=-0.5 VDC, USB/LSB LO=+12.0 dBm, IF=2.0 GHz, RF=-20.0 dBm, ~130 Devices 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 -50 -55 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 30.0 32.0 34.0 36.0 38.0 40.0 42.0 RF Frequency (GHz) Max Median Mean -3sigma Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com Page 3 of 9 Characteristic Data and Specifications are subject to change without notice. ©2005 Mimix Broadband, Inc. Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept their obligation to be compliant with U.S. Export Laws. 12.0-40.0 GHz GaAs MMIC Image Reject Mixer M1001 November 2005 - Rev 21-Nov-05 Mixer Measurements (cont.) 0374 (Vg=-0.5V, PRF=-10dBm IF=2GHz): LSB PLO=+12dBm Image Rejection (dBc) & Conversion Gain(dB) vs. LO freq (GHz) & RF freq (GHz) 0374 (Vg=-0.5V, PRF=-10dBm IF=2GHz): USB PLO=+12dBm Image Rejection (dBc) &Conversion Gain (dB) vs. LO freq (GHz) & RF freq (GHz) LO freq (GHz) 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 RF freq (GHz) 44 8 12 16 20 10 14 18 22 24 28 32 36 40 26 30 34 38 42 0 0 -2.5 -2.5 -5 -5 -7.5 Conversion Gain (dB) Image Rejection (dBc) Conversion Gain (dB) Image Rejection (dBc) -7.5 -10 -12.5 -15 -17.5 -20 -22.5 -25 -27.5 -30 -32.5 -35 -37.5 -10 -12.5 -15 -17.5 -20 -22.5 -25 -27.5 -30 -32.5 -35 -37.5 -40 -40 -42.5 -42.5 -45 -45 -47.5 -47.5 -50 -50 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 LO freq (GHz) RF freq (GHz) 0374 (USB, Vg=-0.5V, PRF=-10dBm, IF=2GHz): 1 device and different powers Image Rejection (dBc) &Conversion Gain (dB) vs. LO freq (GHz) & RF freq (GHz) 0374 (LSB, Vg=-0.5V, PRF=-10dBm, IF=2GHz): 1 device and different powers Image Rejection (dBc) &Conversion Gain (dB) vs. LO freq (GHz) & RF freq (GHz) LO freq (GHz) 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 LO freq (GHz) 44 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 0 0 -8 -8 -5 -5 -10 -10 -10 -10 -25 -16 -12 -20 -25 -14 -30 Conv Loss, PLO (dBm)=6, =R11C5 Conv Loss, PLO (dBm)=9, =R11C5 Conv Loss, PLO (dBm)=12, =R11C5 Conv Loss, PLO (dBm)=15, =R11C5 Im. Rej., PLO (dBm)=6, =R11C5 Im. Rej., PLO (dBm)=9, =R11C5 Im. Rej., PLO (dBm)=12, =R11C5 Im. Rej., PLO (dBm)=15, =R11C5 -16 -30 -18 -18 -35 -20 -40 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 -35 -40 -45 -20 46 Image Rejection (dBc) -14 -20 Conversion Gain (dB) Conv Loss, =R11C5, PLO (dBm)=6 Conv Loss, =R11C5, PLO (dBm)=9 Conv Loss, =R11C5, PLO (dBm)=12 Conv Loss, =R11C5, PLO (dBm)=15 Im. Rej., =R11C5, PLO (dBm)=6 Im. Rej., =R11C5, PLO (dBm)=9 Im. Rej., =R11C5, PLO (dBm)=12 Im. Rej., =R11C5, PLO (dBm)=15 Image Rejection (dBc) Conversion Gain (dB) -15 -15 -12 -50 8 10 12 14 16 18 RF freq (GHz) 20 22 24 26 28 30 32 34 36 38 40 42 RF freq (GHz) 374: LSB Conversion Gain vs Frequency and for differents Vg bias (-2.1V to 0.1V with 0.2V steps) PLO=+12dBm 374: USB Conversion Gain/Image Rejection vs Frequency and for differents Vg bias (-2.1V to 0.1V with 0.2V steps) PLO=+12dBm 0 0 Conv Loss Vg=-2.1 -2 Conv Loss Vg=-1.9 -4 Conv Loss Vg=-1.9 -6 Conv Loss Vg=-1.7 Conv Loss Vg=-2.1 Conv Loss Vg=-1.7 -10 Conv Loss Vg=-1.5 Conv Loss Vg=-1.5 -8 Conv Loss Vg=-1.3 Conv Loss Vg=-1.3 Conv Loss Vg=-1.1 -20 Conv Loss Vg=-0.9 Conv Loss Vg=-0.7 Conv Loss Vg=-0.5 -30 Conv Loss Vg=-0.3 Conv Loss Vg=-0.1 Conv Loss Vg=0.1 -40 Image Rejection Vg=-2.1 Image Rejection Vg=-1.9 Image Rejection Vg=-1.7 -50 Image Rejection Vg=-1.5 Image Rejection Vg=-1.3 Image Rejection Vg=-1.1 -60 Conversion Loss (dB)/Image Rejection (dBc) Conversion Loss (dB)/Image Rejection (dBc) -10 Conv Loss Vg=-1.1 -12 Conv Loss Vg=-0.9 -14 Conv Loss Vg=-0.7 Conv Loss Vg=-0.5 -16 Conv Loss Vg=-0.3 -18 Conv Loss Vg=-0.1 -20 Conv Loss Vg=0.1 -22 Image Rejection Vg=-2.1 Image Rejection Vg=-1.9 -24 Image Rejection Vg=-1.7 -26 Image Rejection Vg=-1.5 -28 Image Rejection Vg=-1.3 Image Rejection Vg=-1.1 -30 Image Rejection Vg=-0.9 -32 Image Rejection Vg=-0.7 -34 Image Rejection Vg=-0.5 -36 Image Rejection Vg=-0.3 Image Rejection Vg=-0.9 Image Rejection Vg=-0.7 Image Rejection Vg=-0.5 Image Rejection Vg=-0.1 -38 Image Rejection Vg=-0.3 -70 Image Rejection Vg=0.1 Image Rejection Vg=-0.1 -40 Image Rejection Vg=0.1 -42 -44 -80 20 21 22 23 RF freq (GHz) 24 25 26 27 16 17 18 19 RF freq (GHz) 20 Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com 21 22 23 Page 4 of 9 Characteristic Data and Specifications are subject to change without notice. ©2005 Mimix Broadband, Inc. Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept their obligation to be compliant with U.S. Export Laws. 12.0-40.0 GHz GaAs MMIC Image Reject Mixer M1001 November 2005 - Rev 21-Nov-05 Mixer Measurements (cont.) 0374 (Vg=-0.5V, IF=2GHz, LSB, PLO=+6dBm): IP1 & OP1 (dBm) vs. RF & LO freq (GHz) 0374 (Vg=-0.5V, IF=2GHz, USB, PLO=+6dBm): IP1 & OP1 (dBm) vs. RF & LO freq (GHz) 10 15 20 LO freq (GHz) 25 30 35 14 18 22 26 12 16 20 24 LO freq (GHz) 30 34 38 28 32 36 25 25 20 20 15 IP1/OP1 (dBm) IP1/OP1 (dBm) 15 10 10 5 5 0 0 -5 -5 -10 -10 12 17 22 RF freq (GHz) 27 32 0374 (Vg=-0.5V, IF=2GHz, LSB, PLO=+9dBm): IP1 & OP1 (dBm) vs. RF & LO freq (GHz) 0374 (Vg=-0.5V, IF=2GHz, USB, PLO=+9dBm): IP1 & OP1 (dBm) vs. RF & LO freq (GHz) 10 15 20 LO freq (GHz) 25 30 RF freq (GHz) 37 14 18 22 26 12 16 20 24 14 18 22 26 12 16 20 24 35 25 25 20 20 LO freq (GHz) 30 34 38 28 32 36 30 34 38 28 32 36 15 IP1/OP1 (dBm) IP1/OP1 (dBm) 15 10 10 5 5 0 0 -5 -5 -10 -10 12 17 22 RF freq (GHz) 27 32 0374 (Vg=-0.5V, IF=2GHz, LSB, PLO=+12dBm): IP1 & OP1 (dBm) vs. RF & LO freq (GHz) 0374 (Vg=-0.5V, IF=2GHz, USB, PLO=+12dBm): IP1 & OP1 (dBm) vs. RF & LO freq (GHz) 10 15 20 LO freq (GHz) 25 RF freq (GHz) 37 30 35 LO freq (GHz) 25 25 20 20 15 IP1/OP1 (dBm) IP1/OP1 (dBm) 15 10 10 5 5 0 0 -5 -5 -10 -10 12 17 22 RF freq (GHz) 27 32 RF freq (GHz) 37 Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com Page 5 of 9 Characteristic Data and Specifications are subject to change without notice. ©2005 Mimix Broadband, Inc. Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept their obligation to be compliant with U.S. Export Laws. 12.0-40.0 GHz GaAs MMIC Image Reject Mixer M1001 November 2005 - Rev 21-Nov-05 Mixer Measurements (cont.) 0374 (Vg=-0.5V, IF=2GHz, USB, PLO=+15dBm): IP1 & OP1 (dBm) vs. RF & LO freq (GHz) 10 15 LO freq (GHz) 20 25 0374 (Vg=-0.5V, IF=2GHz, LSB, PLO=+15dBm): IP1 & OP1 (dBm) vs. RF & LO freq (GHz) 30 35 25 14 18 22 26 12 16 20 24 LO freq (GHz) 30 34 38 28 32 36 25 20 20 15 IP1/OP1 (dBm) IP1/OP1 (dBm) 15 10 10 5 5 0 0 -5 -5 -10 -10 12 17 RF freq (GHz) 22 27 32 37 0374 (Vg=-0.5V, IF=2GHz, LO=+12dBm, IF1-IF2=100MHz, USB, Down Conversion): IM3 avg vs RF freq f1 LO freq (GHz) 12.00 0.00 14.00 16.00 18.00 20.00 22.00 RF freq (GHz) 0374 (Vg=-0.5V, IF=2GHz, LO=+12dBm, IF1-IF2=100MHz, LSB, Down Conversion): IM3 avg vs RF freq f1 LO freq (GHz) 24.00 16.00 0.00 17.00 18.00 19.00 20.00 21.00 22.00 23.00 24.00 25.00 26.00 27.00 28.00 15.00 16.00 17.00 18.00 19.00 20.00 21.00 22.00 23.00 24.00 25.00 26.00 -10.00 IM3 avg (dBm)/ Tone1 (dBm) IM3 avg (dBm)/ Tone1 (dBm) -10.00 -20.00 -30.00 -40.00 -20.00 -30.00 -40.00 -50.00 -50.00 -60.00 15.00 16.00 17.00 18.00 19.00 20.00 21.00 22.00 23.00 24.00 25.00 -60.00 14.00 26.00 RF freq f1 (GHz) RF freq f1 (GHz) 0374 (Vg=-0.5V, IF=2GHz, LO=+12dBm, IF1-IF2=100MHz, LSB, Down Conversion): OIP3 avg vs RF freq f1, IIP3 vs RF freq f1 0374 (Vg=-0.5V, IF=2GHz, LO=+12dBm, IF1-IF2=100MHz, USB, Down Conversion): OIP3 avg vs RF freq f1, IIP3 vs RF freq f1 LO freq (GHz) LO freq (GHz) 13.00 14.00 15.00 16.00 17.00 18.00 19.00 20.00 21.00 22.00 23.00 16.00 30.00 24.00 30.00 18.00 20.00 22.00 24.00 26.00 28.00 30.00 25.00 25.00 25.00 20.00 20.00 20.00 20.00 15.00 15.00 15.00 15.00 10.00 10.00 10.00 10.00 5.00 5.00 5.00 5.00 0.00 14.00 15.00 16.00 17.00 18.00 19.00 20.00 RF freq f1 (GHz) 21.00 22.00 23.00 24.00 25.00 0.00 26.00 IIP3/OIP3 (dBm) 25.00 OIP3 (dBm) IIP3/OIP3 (dBm) 12.00 30.00 0.00 14.00 15.00 16.00 17.00 18.00 19.00 20.00 21.00 22.00 23.00 24.00 25.00 0.00 26.00 RF freq f1 (GHz) Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com Page 6 of 9 Characteristic Data and Specifications are subject to change without notice. ©2005 Mimix Broadband, Inc. Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept their obligation to be compliant with U.S. Export Laws. OIP3 (dBm) -70.00 14.00 12.0-40.0 GHz GaAs MMIC Image Reject Mixer M1001 November 2005 - Rev 21-Nov-05 0.831 (0.033) Mechanical Drawing 1.945 (0.077) 2 0.364 (0.014) 3 1.567 (0.062) 4 0.968 (0.038) 1 5 0.0 0.0 0.831 (0.033) 1.320 (0.052) (Note: Engineering designator is 20IRRFM0374) Units: millimeters (inches) Bond pad dimensions are shown to center of bond pad. Thickness: 0.110 +/- 0.010 (0.0043 +/- 0.0004), Backside is ground, Bond Pad/Backside Metallization: Gold All Bond Pads are 0.100 x 0.100 (0.004 x 0.004). Bond pad centers are approximately 0.109 (0.004) from the edge of the chip. Dicing tolerance: +/- 0.005 (+/- 0.0002). Approximate weight: 1.592 mg. Bond Pad #1 (RF) Bond Pad #2 (IF1) Bond Pad #3 (Vg) Bond Pad #4 (LO) Bond Pad #5 (IF2) Bias Arrangement IF1 2 Bypass Capacitors - See App Note [2] 3 Vg 4 RF 1 5 IF2 Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com Page 7 of 9 Characteristic Data and Specifications are subject to change without notice. ©2005 Mimix Broadband, Inc. Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept their obligation to be compliant with U.S. Export Laws. 12.0-40.0 GHz GaAs MMIC Image Reject Mixer M1001 November 2005 - Rev 21-Nov-05 App Note [1] Biasing - As shown in the bonding diagram, the pHEMT mixer devices are operated using a separate gate voltage Vg1. Set Vg1=-0.5V for optimum conversion loss performance. App Note [2] Bias Arrangement - Each DC pad (Vg1) needs to have DC bypass capacitance (~100-200 pF) as close to the device as possible. Additional DC bypass capacitance (~0.01 uF) is also recommended. App Note [3] USB/LSB Selection - LSB For Upper Side Band Operation (USB): With IF1 and IF2 connected to the direct port (0º) and coupled port (90º) respectively as shown in the diagram, the USB signal will reside on the isolated port. The input port must be loaded with 50 ohms. USB For Lower Side Band Operation (LSB): With IF1 and IF2 connected to the direct port (0º) and coupled port (90º) respectively as shown in the diagram, the LSB signal will reside on the input port. The isolated port must be loaded with 50 ohms. IF2 IF1 Note: The coupled port can be used as an alternate input but the port location of the Coupled and Direct ports reverse. An alternate method of Selection of USB or LSB: USB LSB In Phase Combiner In Phase Combiner -90o -90o IF2 IF1 IF2 IF1 Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com Page 8 of 9 Characteristic Data and Specifications are subject to change without notice. ©2005 Mimix Broadband, Inc. Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept their obligation to be compliant with U.S. Export Laws. 12.0-40.0 GHz GaAs MMIC Image Reject Mixer M1001 November 2005 - Rev 21-Nov-05 Handling and Assembly Information CAUTION! - Mimix Broadband MMIC Products contain gallium arsenide (GaAs) which can be hazardous to the human body and the environment. For safety, observe the following procedures: Do not ingest. Do not alter the form of this product into a gas, powder, or liquid through burning, crushing, or chemical processing as these by-products are dangerous to the human body if inhaled, ingested, or swallowed. Observe government laws and company regulations when discarding this product. This product must be discarded in accordance with methods specified by applicable hazardous waste procedures. Life Support Policy - Mimix Broadband's products are not authorized for use as critical components in life support devices or systems without the express written approval of the President and General Counsel of Mimix Broadband. As used herein: (1) Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. (2) A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. ESD - Gallium Arsenide (GaAs) devices are susceptible to electrostatic and mechanical damage. Die are supplied in antistatic containers, which should be opened in cleanroom conditions at an appropriately grounded antistatic workstation. Devices need careful handling using correctly designed collets, vacuum pickups or, with care, sharp tweezers. Die Attachment - GaAs Products from Mimix Broadband are 0.100 mm (0.004") thick and have vias through to the backside to enable grounding to the circuit. Microstrip substrates should be brought as close to the die as possible. The mounting surface should be clean and flat. If using conductive epoxy, recommended epoxies are Ablestick 84-1LMI or 84-1LMIT cured in a nitrogen atmosphere per manufacturer's cure schedule. Apply epoxy sparingly to avoid getting any on to the top surface of the die. An epoxy fillet should be visible around the total die periphery. If eutectic mounting is preferred, then a fluxless gold-tin (AuSn) preform, approximately 0.001 2 thick, placed between the die and the attachment surface should be used. A die bonder that utilizes a heated collet and provides scrubbing action to ensure total wetting to prevent void formation in a nitrogen atmosphere is recommended. The gold-tin eutectic (80% Au 20% Sn) has a melting point of approximately 280 C (Note: Gold Germanium should be avoided). The work station temperature should be 310 C +- 10 C. Exposure to these extreme temperatures should be kept to minimum. The collet should be heated, and the die pre-heated to avoid excessive thermal shock. Avoidance of air bridges and force impact are critical during placement. Wire Bonding - Windows in the surface passivation above the bond pads are provided to allow wire bonding to the die's gold bond pads. The recommended wire bonding procedure uses 0.076 mm x 0.013 mm (0.003" x 0.0005") 99.99% pure gold ribbon with 0.5-2% elongation to minimize RF port bond inductance. Gold 0.025 mm (0.001") diameter wedge or ball bonds are acceptable for DC Bias connections. Aluminum wire should be avoided. Thermo-compression bonding is recommended though thermosonic bonding may be used providing the ultrasonic content of the bond is minimized. Bond force, time and ultrasonics are all critical parameters. Bonds should be made from the bond pads on the die to the package or substrate. All bonds should be as short as possible. Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com Page 9 of 9 Characteristic Data and Specifications are subject to change without notice. ©2005 Mimix Broadband, Inc. Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept their obligation to be compliant with U.S. Export Laws.