1. Patrick Mead, CID+
Design Portfolio --
PCB Designs

2. Table of Contents
Cover Page ……………………………………………………….. 1
Table of Contents …................................................................. 2
FR4 Boards ……………………………………………………….. 3
Ceramic Boards ………………………………………………….. 31
Chip Designs ……………………………………………………… 39
Training ……………………………………………………………. 45
Resume ……………………………………………………………. 59
2

3. FR4 Boards
6 layer LCD Driver Board …………………………………………. 4
4 channel Detector Computer Interface Board …………………. 7
Infrared Emitter Driver Board …………………………………….. 9
Grain Monitor Board ……………………………………………….. 13
Grain Monitor Board with Micro-controller ………………………. 15
Optical Switch Driver Board ………………………………………. 17
Shutter Driver Board ………………………………………………. 20
Gunshot Flash Detector Boards ………………………………….. 22
Heat Sensing Position Demo ……………………………………... 24
Infrared Transmitter & Receiver Demo …………………………... 25
Count-Down Timer Proto Board …………………………………... 26
256 Element Array (Spectrometer) Driver Boards ………………. 28
3

4. LCD DRIVER BOARD (6 LAYERS)

5. LCD DRIVER BOARD (6 LAYERS)

7. Santa Rosa, CA www.calsensors.com
(707) 303-3837 Info@calsensors.com
An ITW Company
An ITW Company
MCD
High performance multi-channel infrared detector
Key Features:
 Four discrete high sensitivity optical channels in one package
 Allow simultaneous measurement of multiple gases/materials
 Suitable for NIR and MWIR sensing across 1-5.5 microns
 Compact, multi –element TO-5 package
 Ideal for portable instruments where size is critical
 Hermetically sealed for use in harsh environments
 Standard MCD-15 configuration available with optical filters
 Filters target CO2, CO and various hydrocarbon measurements
 Designed for long term reliability in the field
New application demands are driving instrument
manufacturers to measure more materials or
gases in smaller devices while still maintaining
high sensitivity and quality. To meet these
challenges, the MCD (multi-channel detector)
product family provides four discrete optical
channels in a compact TO-5 package. Offering
Cal Sensors’ renowned long-life, high-sensitivity
PbS or PbSe detectors, MCD products cover
from 1 micron up to 5.5 microns wavelengths for
near- and mid-infrared applications.
These multi-channel detectors are designed in a
quadrant configuration. The standard MCD 15
solution provides four isolated optical bandpass
filters mounted on four discrete elements. Well
suited for a variety of applications, including air
quality monitoring and emissions analysis, the
filters have peak wavelengths of 3.34, 4.26 and
4.60 microns to cover hydrocarbon (such as
methane), CO2 and CO test requirements.
For over 25 years, Cal Sensors has been
manufacturing and selling high performance
PbS and PbSe infrared detectors.
Having established a reputation for highly
controlled manufacturing processes, customers
can rely on consistent, repeatable performance
and superior customer service. Supporting all
stages of development, from early prototyping to
high volume production, Cal Sensors is
dedicated to helping customers develop market-
leading instruments. Custom requirements can
be addressed by contacting the Cal Sensors’
sales team.
Applications:
 Medical gas analysis
 Industrial gas analysis
 Auto and aviation emissions monitoring
 Air quality monitoring or analysis
 Environmental
 In tunnels
 Underground

8. 4 CHANNEL DETECTOR COMPUTER INTERFACE BOARD

9. Santa Rosa, CA www.calsensors.com
(707) 303-3837 Info@calsensors.com
An ITW Company
An ITW Company
PIRE PLUS
High-speed infrared emitter with integrated drive electronics
Key Features:
 Fast pulse rates, up to 180 Hz with 50% modulation depth
 Adjustable pulse rates with 0 to 5V control circuitry
 High output emitter, .04 watts/cm
2
at one inch from filament
 Compact, reduced footprint solution
 Software support of custom pulse configurations
 Broadband output with 88% emissivity
 Lower overall system costs
 Typ. MTTF of >26,000 hrs at max rated power
The high-performance PIRE
PLUS
, combines a
high-speed pulsable emitter with its correspond-
ing drive electronics on a compact 14 pin circuit
board. Designed to maximize output over a 1 Hz
to 200 Hz range of pulse speeds, these
complementary assemblies enhance signal to
noise performance, while minimizing the overall
system footprint.
The construction and implementation of the
emitter and control circuitry, optimize
performance by matching the drive waveform for
the desired operating frequency. This ensures
peak output temperatures at all pulse
frequencies and promotes the highest output for
any application. With typical pulse speeds of
180 Hz and 50% modulation depth, even trace
elements in low parts per million concentrations
can be accurately detected.
The PIRE
PLUS
sub-system is an ideal solution for
a variety of applications. The control circuitry
will exploit the capabilities of the high-speed
source in any application, pulsed or steady
state. With this emitter, controller set, designers
can now focus on maximizing the overall system
performance rather than interfacing with the
source.
Applications:
 Gas analysis, medical and industrial
 Environmental monitoring
 Spectroscopy
 Process control systems
 Plastics sorting

10. Santa Rosa, CA www.calsensors.com
(707) 303-3837 Info@calsensors.comAn ITW Company
Specification Minimum Typical Maximum
Emitter Voltage 3V 12V
Pulse Frequency Range 2Hz 100Hz 200Hz
Frequency Control Voltage 0V 2.5V 5V
Emitter Resistance 2.5
Peak Emitter Current (12V) 5A
Average Emitter Current (12V) 10mA 220mA
Output Enable Voltage 0V (disable) 5V (enable)
Filament Temperature (12V) 1000°K
Filament Emissivity 88%
Operating Temperature -30°C +100°C
Lifetime (MTTF) 26,000 Hrs
Spectral Output
(with Sapphire Window)
0.35µm 6µm
DC Intensity (@1000°K) vs. Distance
(@ 2.78 watts)
1E-4
1E-3
1E-2
1E-1
1 10
AXIAL DISTANCE (inches) FROM WINDOW FACE
WATTSPERCM2
Average DC Intensity1
(@1000°K) vs. Angle
(@ 3 inches and 2.78 watts)
1E-4
1E-3
1E-2
-30 -20 -10 0 10 20 30
POLAR ANGLE (degrees)
WATTSPERCM2
.395"
.750"
.150"
.269"
.300
.100
1
2
3
4
5
6
7
14
13
12
11
10
9
8
Emitter
12V max
+5V
0 to +5V
Frequency
Control
Typical Connection Diagram
Enable
Trigger
1. Average of values parallel and perpendicular to element
axis.
1.1
INFRARED EMITTER DATASHEET

11. INFRARED EMITTER DRIVER BOARD

12. INFRARED EMITTER DRIVER BOARD

13. GRAIN MONITOR BOARD

14. GRAIN MONITOR BOARD

15. GRAIN MONITOR BOARD WITH MICRO-CONTROLLER

16. GRAIN MONITOR BOARD WITH MICRO-CONTROLLER

17. OPTICAL SWITCH DRIVER BOARD

18. OPTICAL SWITCH DRIVER BOARD

20. SHUTTER DRIVER BOARD

21. SHUTTER DRIVER BOARD

22. GUNSHOT FLASH DETECTOR

23. GUNSHOT FLASH DETECTOR

25. INFRARED TRANSMITTER & RECEIVER DEMO

26. COUNT-DOWN TIMER PROTO BOARD

27. COUNT-DOWN TIMER PROTO BOARD

28. 256 ELEMENT ARRAY (SPECTROMETER) BOARD

29. 256 ELEMENT ARRAY (SPECTROMETER) BOARD

30. 256 ELEMENT ARRAY (SPECTROMETER) BOARD

31. Ceramic Boards
Integrated Detector Assembly Board…………………………….. 32
256 Element Array (Spectrometer) Boards ……………………. 35
31

32. Preliminary
Santa Rosa, CA www.calsensors.com
(707) 303-3837 Info@calsensors.com
An ITW Company
An ITW Company
IDA
Compact integrated infrared detector assembly
Key Features:
• High sensitivity detector with integrated electronics including:
Single stage TEC and thermistor for temperature control
Hermetic sealing for use in harsh environments
A choice of configurations
A compact TO-8 package
• Eliminates need for external interface boards
• Ideal for portable instruments where small size is critical
• Less susceptible to noise than external circuitry configurations
Standing out from other single-element
detectors, IDA was designed to minimize size
and simplify system implementation, without
sacrificing performance. It promotes multiple
arrangements, offering a choice of 1x1 mm or
2x2 mm detection schemes, PbS or PbSe
materials and supporting single or bipolar bias
supplies. In addition, designers can specify
whether they want to configure it with a unity
gain DC buffer or AC coupled 10 dB gain
amplifier.
The compact size significantly reduces the
footprint as compared to traditional detector
schemes and provides a hermetically sealed
assembly for harsh environments. IDA is ideal
for manufacturers of portable equipment where
size, durability and costs are so important.
The IDA design takes advantage of the
shielded, high impedance detector node to
minimize noise. With the integrated thermistor
and thermoelectric cooler (TEC), IDA can
manage temperature fluctuations reliably.
These complementary features combine to
optimize signal to noise ratio. Thus IDA is
prepared to meet the challenges of today’s and
tomorrow’s demanding applications.
Applications:
Gas analysis, medical and industrial
Emissions monitoring
Spectroscopy
Process control systems
Thermal imaging
Flame detection

33. INTEGRATED DETECTOR ASSEMBLY BOARD

34. INTEGRATED DETECTOR ASSEMBLY

35. 256 ELEMENT ARRAY
(SPECTROMETER) BOARD

36. 256 ELEMENT
ARRAY
ASSEMBLY

37. TE COOLER WITH BUILT-IN CIRCUIT PATTERNS

38. PANEL OF CERAMIC 256 ELEMENT ARRAY (SPECTROMETER) BOARDS

39. Chip Designs
256 Element Array (Spectrometer) Chip………………………….. 40
Infrared Detector Chips …………………………………………….. 42
39

40. 256 ELEMENT ARRAY (SPECTROMETER)
CHIP PATTERN

41. 256 ELEMENT ARRAY (SPECTROMETER) CHIP

42. PANEL OF INFRARED
DETECTOR CHIPS

43. INFRARED MULTI-CHANNEL DETECTOR CHIP

44. INFRARED "DONUT"
DETECTOR CHIP

45. Training
Bachelor of Electronics Engineering Technology ………………. 46
CID+ Certification ………………………………………………….. 47
OrCAD Layout ……………………………………………………… 48
Top Gun contest, PCB Design West, Spring 2001 …………….. 49
Copper Connection ………………………………………………… 51
AutoCAD ……………………………………………………………. 53
Mentor Graphics ……………………………………………………. 54
SolidWorks ………………………………………………………….. 57
GD&T ……………………………………....................................... 58
45

49. PCB West - March 15 - 19, 2004 - San Jose
ENTRY FORM
GENERAL INFO
HALL OF FAME
SPRING 2002 RESULTS
PAST RESULTS
Participant List:
From left to right, Paul Brionez, Marcus Johnson, Scott Green, Edwin Susbilla, Patrick Mead, Dave Graves, Jeffrey Tams
Paul Brionez
Tellabs
Bolingbrook, IL
Software: OrCAD (Cadence)
http://www.pcbwest.com/topgun/spring01.shtml (1 of 4) [4/6/2010 7:50:39 PM]

50. PCB West - March 15 - 19, 2004 - San Jose
Dave Graves
UltraCAD
Bellevue, WA
Software: Mentor Expedition
Scott Green
K and S Substrate Div.
Austin, TX
Software: Cadence Allegro
Marcus Johnson
Cadence Design Systems
Cary, NC
Software: Cadence
Patrick Mead
SpectraSwitch Inc.
Santa Rosa, CA
Software: OrCAD 9.1 (Cadence)
Edwin Susbilla
RockSolid Design Inc.
Mountain View, CA
Software: Cadence Allegro
Jeffrey Tams
Agilent Technologies
Loveland, CO
Software: PADS (Innoveda)
http://www.pcbwest.com/topgun/spring01.shtml (2 of 4) [4/6/2010 7:50:39 PM]