Mixed Signal SoC design for Biometric Finger Print authentication

Mixed Signal SoC design for Biometric Finger Print authentication

The Customer:

A US based world leader in fingerprint sensor solutions. These solutions provide the highest levels of performance, security, cost-effectiveness, and design flexibility. Their fingerprint sensor technology enables smartphones, tablets, notebook PCs, etc. to implement authentication applications. Tata Elxsi has created around 6 different variants of Biometric Fingerprint Sensor SoC for this customer.

Product Description & Scope:

  • To build world class Biometric Authentication ICs to maintain leadership and increase market share, Tata Elxsi was selected for our extensive experience of handling turn-key SoC projects
  • A mixed signal SoC for fingerprint authentication in laptops and hand held devices
  • To create an end-to-end design from Spec to GDSII
Scope: ASIC (Front End)
  • Spec definition
  • RTL design
  • Synthesis
  • OVM based verification
  • Pre Si Validation
Scope: ASIC (Back End)
  • Place and Route
  • Timing Closure
  • Physical Verification
  • Post Si Validation

The Solution:

  • Flawless planning and execution of end-to-end design for targeted SoC
  • Low power multi-voltage mixed signal design flow
  • Successfully met analog Blocks Integration challenges
  • Custom routing – channels between analog and digital, custom I/O cells
  • Successful timing closures, congestion and low power in a multi-voltage domain
  • FPGA prototype boards were designed and developed by Tata Elxsi and followed by a complete System Validation activity
  • OVM verification methodology with 100% verification coverage
  • Customized flow set up for the customer at Tata Elxsi ODC
  • Digital characterization of Silicon (USB function & compliance, Custom SPI Master & Slave IP, OTPROM, GPIO, PWM)
  • Characterization Setup (Characterization using patch environment covers, voltage, temperature, frequency measurement)

Business Benefits:

  • Tata Elxsi has been working on the development of mixed signal SoCs for 3+ years which started with laptop application and leading to low power SoC development for handheld devices hence saving significant efforts/cost for customer for next derivatives
  • Our capability with SoC and system design helped customer to come up with different offerings in their market segment ahead of competition
  • Very easy migration to derivative products for different markets in authentication segment without time & cost overheads
  • ODC at Tata Elxsi resulted in significant reduction of operational overheads and hence keeping cost of ownership very low