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Digital Showcase : Automotive > Product Overview > Components > Sensor Packages

Japanese

Sensor Packages

Kyocera offers hermetic ceramic packages with superior mechanical properties, suitable for small, high density, and surface mountable applications - including accelerometers and angular rate, pressure, optical and RF sensors.

Product Outline

Features

·	Air-cavity type hermetic package
·	Close thermal-expansion matching provides superior mechanical elasticity and less mechanical stress with silicon MEMS chips
·	Miniaturized, high-density surface mountable package incorporating multi-layer ceramic technology

Applications

·	Accelerometers
·	Angular rate sensors (gyro sensors, yaw-rate sensors)
·	Pressure sensors
·	CMOS/CCD Image sensors

Products and Applications

Packages for MEMS (Micro Electro-Mechanical Systems)


iMEMS® Ceramic Packages for Gyroscopes and Accelerometers (Copyright. Analog Devices, Inc. All Rights Reserved.)		Ceramic MCM Package for Accelerometer (Courtesy of Colibrys S.A.)


DLP® Chip Package (Courtesy of Texas Instruments, Inc.)	Kyocera Standard Package Library available in CoventorWare®

iMEMS is a registered trademark of Analog Devices, Inc. DLP is a registered trademark of Texas Instruments, Inc. *CoventorWare is a registered trademark of Coventor, Inc.

Product Specifications

Structure

TYPE 1: Package + Seal RING

TYPE 2: Package + Seal META (or NON)

Cerdip Type Package

Material Characteristics and Reliability

Material Characteristics

			Alumina
Items		Units	A440	A443K
Bulk Density		-	3.6	3.7
Electrical
	Dielectric Constant (1MHz)	-	9.8	9.6
	Dielectric Constant (10GHz)	-	9.8	-
	tan delta (1MHz)	( 1 X 10-4)	24	5.0
	tan delta (10GHz)	( 1 X 10-4)	-	-
	Volume Resistivity (20°C)	-cm	>10¹²	>10¹²
Thermal		1/°C
	Thermal Expansion (40-400°C)	( 1 X 10-6/°C)	7.1	6.9
	Thermal Conductivity	W/mK	14.0	18
	Specific Heat	J/gK	0.78	0.79
Mechanical
	Flexural Strength	MPa	400	460
	Young's Modulus	GPa	310	310
Conductor
	Material		W	W
	Sheet Resistance	m /SQ	8	8
	Tensile Strength	Kgf/mm2SQ	4	4
Characteristic				High strength
Color of Ceramics			Brown/Black	Brown/Black

Reliability Test Results

(Tested as package only)

Test Items	Test Conditions	Hermeticities (Gross Leak only)	opens/shorts	Conductive Resistances	Conductive Resistances
Temp. cycle	-65 to +150°C	1000 cycles	1000 cycles	1000 cycles	1000 cycles
High Temp. Torage	+150°C	1000hours	1000hours	1000hours	1000hours
High Temp. Humidity	85°C - 85%RH	1000hours	1000hours	1000hours	1000hours
Thermal Shock	-65 to +150°C	1000 cycles	1000 cycles	1000 cycles	1000 cycles
High Temp. Storage with Bias	150°C/5.5V	1000hours	N/A	3000hours	N/A

For reference purpose only.

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