|
| MATRIX |
|
LINEAR OPTOELECTRONIC INTEGRATED ARRAYS FOR PARALELL PROCESSING |
| |
| Starting date: September
1995
|
| Closing date:
September 1996 |
| |
| Main goal: |
Monitoring the textile
thread quality |
| User: |
SELTEX Ltd. (National Research Program "ORIZONT 2000") |
| Partners: |
IPRS Baneasa SA (silicon foundry) |
| Team: |
Mira Caldararu (project
manager and device design and testing) |
| |
Nicolae Bunea (device design and testing) |
| |
Anca Paraschiv (layout
project) |
| |
Sorin Negru (mask project and manufacturing,
chip manufacturing) |
| |
Constantin Klier (encapsulation) |
| |
| Project description |
| We have designed and produced two linear optoelectronic
arrays (MAT 16 and MAT 32). MAT 16 is an image sensor with 16 bipolar
photodiodes. It is designed for parallel output, as it has 16 separate output
connections. The photodiodes cathodes are connected together. The matrix is
designed for those applications where low capacitance and fast speed of
response are important. MAT 32 has 32 elements, each element being composed of
a photodiode, coupled with a bipolar amplifier transistor. The whole matrix is
bipolar integrated. It is designed for parallel output, as it has 32 separate
output connections. The photodiode - transistor connection enables different
types of applications, analogue or digital ones. The output transistor supplies
a 100 times larger photocurrent than the photodiode and the open output
collector might be connected function the application
requirements. TTL compatible output might be obtained. Through these
characteristics, MAT 32 array might be used in specialised applications, where the design requires a more
flexible approach than can be obtained by using a CCD array. The parallel
output assures also a response time much smaller than that of the response time
of an entire CCD linear matrix (all the elements). |
| |
| Applications |
Absolute Maximum Ratings |
|
Optical
character recognition |
| Storage
Temperature |
-25oC
to 60oC |
|
| Textile
yard characterisation |
| Operating
Temperature |
0oC
to 70oC |
|
| Document
scanning |
| Supply
and Output Voltage (VCC ) |
-0.5 V to 15 V |
|
| Inspection |
|
| Noncontact measurement |
|
| Spectrometric measurements |
|
| Position measurement |
|
|
| |
| Position
measurement
Opto-Electrical Specifications
(TA = 25oC) |
|
Parameter |
Function |
Sym. |
Min. |
Matrix |
Typ. |
Max. |
Units |
Test Conditions |
|
Dark Output Current |
Each element |
IOD |
|
MAT 32
MAT 16 |
10
5 |
500
50 |
nA |
Ee = 0
VO = VCC = 5 V |
|
Dark Supply Current |
Whole matrix |
ICCD |
|
MAT 32 |
0.5 |
35 |
μA |
Ee = 0
VO = open
VCC = 15 V |
|
Supply Current
under Illumination |
Whole matrix |
ICCL |
|
MAT 32 |
1.5 |
|
mA |
Ee = 100 mW/cm2
λ = 0.9
μm
VCC = 15 V |
|
Saturation Output
Voltage |
Each element |
VOL |
|
|
0.2 |
0.4 |
V |
Ee = 100 mW/cm2
λ = 0.9
μm
VCC = 5 V |
|
Responsivity |
Each element |
R0.9 |
20 |
MAT 32
Mat 16 |
30
0.5 |
|
A/W |
Ee = 50 mW/cm2
λ = 0.9
μm
VCC = 5 V |
|
Spectral Range |
Each element |
Δλ |
|
|
0.45 - 0.95 |
|
μm |
Ee = 50 mW/cm2
VCC = 5 V |
|
Response time |
Each element |
tr |
|
MAT 32
MAT 16 |
1
1 |
5
10 |
μs
ns |
Ee = 50 mW/cm2
λ = 0.9 μm
VCC = 5 V
RL = 5.6 kΩ
|
|
No. of elements |
|
|
|
MAT 32
MAT 16 |
32
16 |
|
|
|
|
Array length |
|
|
|
|
3.2 |
|
mm |
|
|
Array width |
|
|
|
|
1 |
|
mm |
|
|
Spacing |
|
|
|
|
20 |
|
μm |
|
|
| |
|
