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Semiconductor Technology on Medical Device

The medical industry is revamping. Conventional techniques of diagnosis and resultant therapies are becoming less invasive and more effective. Intelligent, connected portable devices are keeping patients out of hospitals and monitored in the comfort of their own homes.Semiconductor technology takes part in a remarkable role in these innovations.
With a sundry portfolio of products and services, talented engineering staff with system expertise, a deep grasp of the quality, reliability and long existence of demands of the medical market, and global manufacturing and logistics potential, Faststream Technologies qualifies medical device manufacturers to solve their distinctive design challenges with solutions that enhances lives.

 

Faststream Technologies is a semiconductor design company that designs and markets specialty memory products for high reliability, extended temperature applications for industrial and medical applications. Quality,reliability and sensitivity are the most significance for the equipment manufactured in the medical market segments. At Faststream, excellent standard and reliability are designed in, not just tested-in. The significance of quality and reliability starts at the earliest point of product design and continues at every step, right through to customer shipment.

 

Faststream provides a wide range of memory products for use in medical devices which incorporates Flash, Ultra Low Power (ULP) SRAMs, PSRAMs and Mobile DRAMs for power critical, portable applications.

 

Application Specific Integrated Circuit Design on Medical Device:

 

Application Specific Integrated Circuit  are used nowadays in implantable medical devices which can supply therapy for a number of conditions, from pain management to epilepsy and psychological disorders. A medical IC can be used in devices programmed to deliver drugs on a more productive way to effectively treat and relieve patient’s conditions with very less side effects. As implantable devices need to be small, lightweight, and use less power, medical ICs aids you to come across the needs of  medical device integration.

 

A diversity of supporting functions for implanted medical devices, such as sensing, stimulation,  therapy delivery; memory storage; microprocessor; communications; and power management has been carried out through Medical IC. All these operation is being transferred in a small medical integrated circuit with a smaller footprint than other solutions. Unlike the commercial use of integrated circuits which can change with modern technology, integrated circuits for medical devices have a process growth that is less likely necessary revisions, provides more quality, and offers a sturdy solution that works.

Our Medical ASIC are worldwide recognised, We provide innovative custom analog and mixed signal integrated circuit solutions. We custom design ICs for medical devices with low power requirements and small form-factors,for both implantable and external medical applications. Our integrated circuits for medical devices can be found in many class III implantable devices and the target  customers varies from small firm to established medical device companies.

 

Various Expertise on Medical ICs

 

  • Cardiac Pacemakers & Defibrillators
  • Heart & Respiratory Monitors
  • Miniature Drug Delivery Systems
  • Neurological Stimulators
  • Neurological Sensors
  • Orthopedic Sensors
  • Ingestible Sensors
  • Glucose Meters
  • Optical Lens Drivers
  • Ultrasound

 

Medical Electronics for Home Care Solutions

 

An upcoming trend of patient care moving away from hospitals and clinics and into homes. As home care can help in enhancing efficiency and lowering costs incurred by doctors the Healthcare providers  and hospitals also using this. This process can be accelerated by Portable medical electronics technology .In normal cases, portable medical devices are all battery-operated, micro controlled handheld devices that take and analyze measurements using different bio-sensors on a patient.

 

These are the many functional blocks which are generally used in most portable home-based and consumer medical devices:

 

 

    • Bio-sensor(s) or bio transducers
    • Power management: system power control and power sequencing
    • Microcontroller: low-power operation and control.
    • Amplification and analog-to-digital conversion of the sensor input
    • User interface: display and human machine interface: keypads, scroll wheels, buttons and switches etc.

Portable medical devices offer low-power consumption to enhance battery life. Like all designs, faster time-to-market, low cost, reliability and small form factors are important.

While engineering is generally about making trade-offs between opposing features, specifications, and space constraints.The demand in this market are often unsuitable—the need for a small form factor along with high functionality; low power consumption along with high- performance analog; and long battery life along with high processing capability.

 

We can take the example like portable Patient Vital Signs Monitor, which measures blood pressure, heart rate, pulse oxygen and temperature using IR thermometry. Using a programmable system-on-chip (PSoC) in this design reduces design complexity by offering configurable integration of the complete signal chain for analog signal processing, resulting in significant space and cost savings. By using a single PSoC all the control functions can operate in this design performing different tasks at different times depending on the operation taking place.

A Patient Vital Signs Monitor using PSoC has the benefit of emulating most of the required peripherals inside one chip. A single PSoC includes Flash and SRAM memory, an MCU, ADCs, PWM, filters, USB control and capacitive sensing. LCD drive is integrated in the PSoC. Only the pressure transducer and the LCD display are external to PSoC. Clearly, there is an immediate component count reduction, with most peripheral components integrated into the SOC.

 

Cases Studies:

 

1.MEMS Driver ASIC for Contact Lens Sensor:

 

We have designed and developed  an ASIC for sensing to set up straight with the contact lens.

The MEMS sensor which can be digitized through ASIC is reading and transfers the assessments  back to the recorder with the same RF link used to power the device using load modulation techniques.

By using 0.35µm process, Faststream  could incorporate power capture and conditioning, RF signaling, high linearity ADC and digital control functionality on a single die within the limited  power budget and at low cost.

 

Benefit for the customer

 

Faststream regulates the whole ASIC life cycle for Sensimed, comprises with design, prototyping, industrialization and supply chain for different volume production. The bumped die is attached directly onto copper traces within the lens during manufacture, connecting it to the antenna and MEMS array.

 

Using these process Faststream could sensimed the demand for a high ENOB process during keeping within the power resources of the coil antenna.

 

Key technical statistics

 

      • Column Parallel ADC on board with low noise sampling structure and temperature variation compensation
      • 13.56 MHz loosely coupled inductive link for power and data
      • Communication via load modulation
      • CMOS execution with well structured rectification which avoids the need for Schottky diodes.
      • sensor reading on Wheatstone resistive bridge , analog to digital conversion and data 
      • Offset and slope correction technique embedded
      • Input and output through magnetic link
      • Sub 5 -10 µV ADC
      • Broad range of incoming wireless energy
      • Power and data transfer through Wireless.

 

2.ASIC BASED MEDICAL IMAGING READOUT SYSTEM:

 

The prototyping board depending on ASIC is designed to readout Analog and Digital ASIC. This platform is designed for imaging purpose: Calorimetry, Silicon Tracker, Medical Imaging.

 

The platform provides up to 240 digital high speed I/O and 8, 120 MSPS 14 bit ADC channels. Almost all modern front-end ASIC can be validated with this system It is possible to read-out:

 

      • Pre-amplifier/shaper only ASIC with dedicated Analog output for each channel
      • Multiplexed channels Analog Output ASIC
      • Digital only ASIC, for example ASIC with only comparator inside designed for applications requiring only timing information
      • ASIC with integrated ADC and/or TDC
      • 70 ps resolution TDC on Petiroc ASIC

Faststream Technologies carried out all Virtual Blocks to:

 

      • Executed trapezoidal filter or charge integration to measure the energy of the pulses
      • 0.5ns TDC in order to timestamp events and implement TOT
      • Analog Demultiplexer to readout data from multiplexed ASIC
      • ROC ASIC Decoders blocks
      • The  devices could interface to the ASICs slow control using SPI, I2C or Parallel interface.

 

3.Medical Microelectronics Solutions:

 

Faststream Technologies’s medical and implantable microelectronics services include:

 

      • Miniaturization by use of microelectronic high density packaging technologies
      • Interactive DFM/DFT
      • Electrical, mechanical, and thermal analysis
      • Development of electrical, functional and environmental tests that support high-reliability manufacturing

 

Our Microelectronic capabilities include:

 

      • Wafer & Die Processing
      • Die attach using a variety of epoxies and other materials
      • Placement capability of all device types including RF and MMIC devices
      • Automated wire bonding including gold and aluminum wedge, and gold ball bonding
      • Custom microelectronic packaging, including multi chip packaging (MCP), multichip modules (MCM), power modules, chip-on-board (COB), chip-scale-modules (CSM)
4.Biometric Monitor

 

Such IC observe different biometric parameters. Pressure, temperature, ECG, EMG, EEG and EOG data are the particular parameter. All the systems are in wireless. A transmitter and battery used for un-tethered data collection. The IC has been developed in conjunction with a prime manufacturer of advanced biometric monitoring devices.

 

Features

 

  • Multi Channel Sensor
  • Low Supply Power & Supply Voltage
  • Various types of Sensors
  • Temperature Range = 5°C to +75°C
  • Temperature, Pressure and Biopotential Activities
  • Micro-power EEPROM