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参数资料
| 型号： | HMC635 |
| 厂商： | HITTITE MICROWAVE CORP |
| 元件分类： | 放大器 |
| 英文描述： | 18000 MHz - 40000 MHz RF/MICROWAVE WIDE BAND LOW POWER AMPLIFIER |
| 封装： | 1.95 X 0.84 MM, 0.10 MM HEIGHT, DIE-8 |
| 文件页数： | 8/8页 |
| 文件大小： | 285K |
| 代理商： | HMC635 |
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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
Mounting & Bonding Techniques for Millimeterwave GaAs MMICs
The die should be attached directly to the ground plane eutectically or with
conductive epoxy (see HMC general Handling, Mounting, Bonding Note).
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 accom-
plish 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).
Microstrip substrates should brought 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).
Handling Precautions
Follow these precautions to avoid permanent damage.
Storage: All bare die are placed in either Waffle or Gel based ESD protec-
tive 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:
Follow ESD precautions to protect against ESD
strikes.
Transients: Suppress instrument and bias supply transients while bias
is applied. Use shielded signal and bias cables to minimize inductive
pick-up.
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.
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
Ball or wedge bond with 0.025mm (1 mil) diameter pure gold wire. Thermosonic wirebonding with a nominal stage
temperature of 150 °C and a ball bonding force of 40 to 50 grams or wedge bonding force of 18 to 22 grams is recom-
mended. Use the minimum level of ultrasonic energy to achieve reliable wirebonds. Wirebonds should be started on
the chip and terminated on the package or substrate. All bonds should be as short as possible <0.31mm (12 mils).
0.102mm (0.004”) Thick GaAs MMIC
Ribbon Bond
0.076mm
(0.003”)
RF Ground Plane
0.127mm (0.005”) Thick Alumina
Thin Film Substrate
Figure 1.
0.102mm (0.004”) Thick GaAs MMIC
Ribbon Bond
0.076mm
(0.003”)
RF Ground Plane
0.150mm (0.005”) Thick
Moly Tab
0.254mm (0.010” Thick Alumina
Thin Film Substrate
Figure 2.
HMC635
v00.1107
GaAs PHEMT MMIC DRIVER
AMPLIFIER, 18 - 40 GHz
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相关代理商/技术参数 |
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| HMC635_09 | 制造商:HITTITE 制造商全称:Hittite Microwave Corporation 功能描述:GaAs PHEMT MMIC DRIVER AMPLIFIER, 18 - 40 GHz |
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| HMC6352-EVAL | 功能描述:EVALUATION BOARD FOR HMC6352 RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035 |
| HMC6352-TR | 功能描述:MODULE COMPASS DGTL 2AXIS 24PLCC RoHS:是 类别:传感器，转换器 >> 磁性 - 罗盘，磁场（模块） 系列:- 标准包装:490 系列:- 轴:X，Y，Z 测量范围:±1.3 ~ 8.1高斯，±2，4，8高斯 用于测量:制导，间距和卷 分辨率:8 毫高斯 类型:数字罗盘 封装/外壳:28-VFLGA 接口:I²C 配用:497-10689-ND - BOARD ADAPTER LSM303DLH DIL24 其它名称:497-10474 |
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