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    Shawtronics

Shawtronics - Penetrating Probes

Test and troubleshoot ICs in-circuit without removing the conformal coating

Shawtronics is a company dedicated to the design and manufacture of better probes for electronic test and diagnosis of in-circuit ICs. If you have been frustrated by the time and expense required to remove conformal coating from PCBs before they can be tested, you’re not alone. Shawtronics has designed probes that will test ICs in-circuit without removing the conformal coating. All the Shawtronics probes feature razor-sharp spring-loaded pins that will make a connection by penetrating conformal coating with a minimum of force. There are different designs for different IC packages, from DIL to SOIC, PLCC, QFP and other surface-mounted ICs. Shawtronics probes for through-hole ICs can be made to test on the chip side or the solder side of a PCB (two different designs). With more than a dozen 3D printers in its lab, Shawtronics can design and fabricate custom probes for many high-pin-count ICs that otherwise would have to be tested pin by pin.

On our ABI systems, higher pin count probes may be used with any lower pin count ICs of the same configuration. For example, a 32-pin standard DIL probe can be used to test 30-pin, 28-pin, 20-pin or any smaller standard DIL IC.

Shawtronics probes and guaranteed for a year, not including the replaceable pins. Bent pins on most probes means the end of the probe. The pins on Shawtronics probes are inexpensive and user-replaceable in a matter of seconds. Just pull the bent pin out of its socket and put in a replacement.

Shuttle probes are another Shawtronics innovation. They enable the testing of fine pitch (.02”) ICs by testing every other pin at one time. They have an indent that precisely fits the surface of the IC. A 13-pin probe can be made for a 100-pin QFP, for example. With the probe positioned on the IC, the first test on one side of the chip collects the signal from 13 pins. Then the pins get shuttled slightly to the other position limiter and the remaining 12 pins on that side of the IC are tested.

There is a probe design which will test all 100 or 144 pins of a .02-pitch IC in one go, but the pin type and pin count make it a costly probe. The close tolerances make correct positioning very difficult on an IC with that many pins. A gantry is required to hold the probe in place with sufficient force to penetrate the conformal coating on all those pins.

A gantry and a 64-channel switch are among the accessories which will be added to this page once product development is complete.

Because of the many variables in IC packages and in the design of custom probes, please contact us for a quote. All probes will be built to order. Delivery will generally be within about 2-4 weeks. When requesting a quote please specify an IC part number along with the package type, pin count, and pitch. You can specify a point type or we will provide the point type we have found to be most effective for that type of probe and IC. There are dozens of different pin configurations and point types. The two most often used are shown below in the first two images.

Some approximate examples of probe pricing:

  • Multiprobe up to 16 pins and .05 or .1 pitch      $450
  • DIL Probes up to 32 pins and .1 pitch      $590
  • SOIC or PLCC Probes up to 32 pins and .05 pitch     $590
  • DIL Wide Probes up to 32 pins and .1 pitch     $660
  • Shuttle Probe up to 25 pins and .02 pitch     $950

See the chart below the probe images for examples of available probes. It is not a complete listing. Shawtronics’ designer likes a challenge and believes he can design a probe to test any IC.

 

Chisel Point PinsChisel Point Pins

2020 Pin Standard DIL

2828 Pin Standard DIL

32Shuttle Probe for 100 Pin QFP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Examples of Available Probes

Shawtronics PN
Diagnosys PN
Type
Pins
Pitch
BQFP-100
41-0530
BQFP
100
.025”
BQFP-132
41-0760
BQFP
132
.025”
CAN-10
NA
CAN TYPE
10
CIRCULAR
CAN-8
NA
CAN TYPE
8
CIRCULAR
CDF-32
41-0850
CDF
32
.05”
CERBRAZ-164
41-1790
CER BRAZ
164
.025”
CQFP-68
41-0730
CQFP
68
.05”
CQFP-68
41-0730
CQFP
68
.05”
CQFP-84
41-0740
CQFP
84
.05”
CSOP-14
41-0031
CSOP
14
1.25MM
CSOP-16
41-0041
CSOP
16
1.25MM
CSOP-20
41-0051
CSOP
20
1.25MM
CSOP-28
41-0071
CSOP
28
1.25MM
CSOP-42
41-0091
CSOP
42
.05"
DDC70-70
41-1780
DDC 70
70
.05”
DIL STD-10
NA
DIL STD
10
.1”
DIL STD-12
NA
DIL STD
12
.1”
DIL STD-14
NA
DIL STD
14
.1”
DIL STD-16
NA
DIL STD
16
.1”
DIL STD-18
NA
DIL STD
18
.1”
DIL STD-20
NA
DIL STD
20
.1”
DIL STD-22
NA
DIL STD
22
.1”
DIL STD-24
NA
DIL STD
24
.1”
DIL STD-26
NA
DIL STD
26
.1”
DIL STD-28
NA
DIL STD
28
.1”
DIL STD-30
NA
DIL STD
30
.1”
DIL STD-32
NA
DIL STD
32
.1”
DIL STD-8
NA
DIL STD
8
.1”
DIL WIDE-24
NA
DIL WIDE
24
.1”
DIL WIDE-26
NA
DIL WIDE
26
.1”
DIL WIDE-28
NA
DIL WIDE
28
.1”
DIL WIDE-32
NA
DIL WIDE
32
.1”
DIL WIDE-36
NA
DIL WIDE
36
.1”
DIL WIDE-40
NA
DIL WIDE
40
.1”
DIL-6
41-1630
DIL
6
.1”
HDPGA-132
41-1690
HD PGA
132
.075”
HTSSOP-20
NA
HTSSOP-20
20
.65MM
HYSOIC-22
41-1080
HYSOIC
22
.05”
LCC-20
41-0451
LCC
20
.05”
LCC-28
41-0860
LCC
28
.05”
LCC-32
41-0751
LCC
32
.05”
LCC-40
41-1220
LCC
40
.04”
LCC-44
41-1340
LCC
44
.05”
LCC-52
41-1350
LCC
52
.05”
LCC-68
41-1240
LCC
68
.05”
LCC-84
41-1250
LCC
84
.05”
LQFP-144
NA
LQFP
144
.5MM
PGA-100
41-0380
PGA
100
.1"
PGA-120
41-1710
PGA
120
.1”
PGA-132
41-1700
PGA
132
.1”
PGA-141
41-0870
PGA
141
.05”
PGA-168
41-1040
PGA
168
.1”
PGA-192
41-0820
PGA
192
.1”
PGA-48
41-1230
PGA
48
.04”
PGA-68
41-0770
PGA/PLCC
68
.1”
PGA-81
41-1030
PGA
81
.1”
PGA-84
41-0810
PGA/PLCC
84
.1”
PLCC-20
41-1720
PLCC
20
.05”
PLCC-28
41-0480
PLCC
28
.05”
PLCC-32
41-1730
PLCC
32
.05”
PLCC-44
41-0490
PLCC
44
.05”
PQFP-100
41-0270
PQFP
100
.65MM
PQFP-100-2
41-0280
PQFP
100
.5MM
PQFP-208
41-0780
PQFP
208
.5MM
PQFP-56
41-0111
PQFP
56
.8MM
PQFP-64
41-0210
PQFP
64
.5MM
PQFP-64
41-0290
PQFP
64
.8MM
QFP-112
41-1400
QFP
112
.65MM
QFP-128
41-1300
QFP
128
.5MM
QFP-132
41-0500
QFP
132
.025”
QFP-144-1
41-0320
QFP
144
.65MM
QFP-144-2
41-0720
QFP
144
.65MM
QFP-144-3
41-0890
QFP
144
.5MM
QFP-168
41-1450
QFP
168
.65MM
QFP-44
41-1460
QFP
44
.8MM
QFP-48
41-0101
QFP
48
.8MM
QFP-52
41-0180
QFP
52
.65MM
QFP-52
41-1380
QFP
52
1MM
QFP-64
41-1410
QFP
64
1MM
QFP-72
41-0520
QFP
72
.05”
QFP-80-1
41-0460
QFP
80
.8MM
QFP-80-2
41-1420
QFP
80
.65MM
QFP-80-3
41-1470
QFP
80
.5MM
QFP-84
41-0740
QFP
84
.05”
QVSOP-80
41-0012
QVSOP
80
.5MM
SMD-10
41-0400
SMD?
10
.5MM
SMD-14
41-0440
SMD?
14
.05”
SO10-10
41-1480
S0-10
10
.05”
SOC-4
41-1550
SOC
4
.1”
SOIC-28
42-0150
SOIC
28
.05”
SOIC-48
42-0010
SOIC
48
.05”
SOP-24
41-1660
SOP
24
.4MM
SOP-30
41-1650
SOP
30
.5MM
SOP-38
41-1680
SOP
38
.5MM
SOP-44
41-1430
SOP
44
.05”
SPQFP-48
41-0950
S-PQFP
48
.5MM
SSOP-14
41-0590
SSOP
14
.65MM
SSOP-16
41-0141
SSOP
16
1 MM
SSOP-16
41-0600
SSOP
16
.65MM
SSOP-16-025
41-0150
SSOP
16
.025"
SSOP-18
41-1120
SSOP
18
.65MM
SSOP-20
41-0200
SSOP
20
.025"
SSOP-20
41-0250
SSOP
20
.65MM
SSOP-24-1
41-0260
SSOP
24
.65MM
SSOP-24-2
41-0300
SSOP
24
.025"
SSOP-28
41-0830
SSOP
28
.65MM
SSOP-48
41-0650
SSOP
48
.025”
SSOP-56
41-0800
SSOP
56
.025”
SSOP-64
41-0540
SSOP
64
.8MM
SSOP-8
41-0580
SSOP
8
.65MM
TLQFP-100
41-0310
T/L QFP
100
.65MM
TQFP-100
NA
TQFP
100
.5MM
TQFP-120
41-0940
TQFP
120
.4MM
TQFP-128
41-0930
TQFP
128
.4MM
TQFP-144
41-1060
TQFP
144
.4MM
TQFP-32
41-0191
TQFP
32
.8MM
TQFP-44
41-0790
TQFP
44
.8MM
TQFP-44
NA
TQFP
44
.8MM
TQFP-68
41-0121
TQFP
68
.8MM
TSOP1-32
41-1210
TSOP1
32
.5MM
TSOP2-44
41-0880
TSOP2
44
.8MM
TSOP-32
41-1010
TSOP
32
.5MM
TSOP-40
41-1290
TSOP
40
.5MM
TSOP-48
41-0990
TSOP
48
.5MM
TSOP-50
41-0020
TSOP
50
.8MM
TSOP-54
41-0160
TSOP
54
.8MM
TSOP-56
41-0221
TSOP
56
.5MM
TSOP-65/70
41-0170
TSOP
64/70
.65MM
TSSOP-14
41-0560
TSSOP
14
.65MM
TSSOP-16
41-0570
TSSOP
16
.65MM
TSSOP-20
41-1020
TSSOP
20
.65MM
TSSOP-24
41-1130
TSSOP
24
.65MM
TSSOP-28
41-0840
TSSOP
28
.65MM
TSSOP-28
41-0900
TSSOP
28
.65MM
TSSOP-48
41-0242
TSSOP
48
.5MM
TSSOP-56
41-0232
TSSOP
56
.5MM
TSSOP-56
41-1100
TSSOP
56
.8MM
TSSOP-8
41-0920
TSSOP
8
.65MM
VSOP-28
41-1000
VSOP
28
.55MM


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