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详细说明:半导体测试技术,测试相关文献技术资料,可以指导使用The handler or prober can also generate a Retest signal, indicating that
the part is untestable and should simply be rejected. This signal is
currently ignored by Win92, although it can be detected using Send
command programming in the job plan
Finally, the handler or prober can, signal an ALARM condition, which
means that the dut should receive special binning or that the test
system should stop testing until some condition can be corrected. This
condition can be recognized through the job plan as hialm by win92
alarm programming
You can, as previously mentioned, program the interface to adapt to a
wide variety of handlers and probers. both the inputs and the outputs can
be changed. There are three possible characteristics to vary through
programming
Phase high-true or low-true
level the voltage for a high
Timing( when a signal goes high or low
Not all of the interface's signals have programmable phase, level. And
timing, however. The following discussion of the signals describes how
each of them may be varied
Input Signal Characteristics
Inputs are: HANDLER START, HANDLER RETEST input, AUTO Ss
RETEST input, HANDLER ALARM
Input Phase. The interface can be programmed to recognize either
high-true or low -true input signals from the handler. However, input
signal phase is programmed for all input signals collectively (all must be
either high-true or all must be low true ) The INPUT PHASE parameter
defaults to low-true
MI MAN and TECH
NOTE
When input signals are programmed low true, all unused inputs should be
connected to a high level, or allowed to float In the high true mode
unused inputs must be tied to ground
Input Level. The input signal can be any positive level or pulse
between 3v. The signal can be low true or high true
Input impedance is a 47 kohm resistor in series with a olmp capacitor
to ground. The junction of the r and c is clamped with diodes to be
between -06v and 5.6V. Further information on the input lines is
available in section 6.1
Unwanted pulses and noise on the input lines are filtered by the 47kohm
resistor and the 0.lmf capacitor
Input Timing. The signal duration can be from >600 mp to de
Accuracy is +/-20%0
Output signal Characteristics
Output signals are, BIN.EOS, and RETEst
bin Phase. The polarity of the bin output signals can be programmed
independently( from EOS phase)to be either high-true or low-true
The bin outputs default to low-ti
+EOS Phase. The polarity of the Eos output signal can be programmed
independently( from bin phase to be either high -true or low-true
assertive. The eos output defaults to low-true
RETEST Phase. The retest output to the handler is unique as an
output in that it is designed to simply echo a retest input. As a result
the phase of this output signal is programmed to either high-true or low
true by the input phase selection (that is, it has the same phase as the
input signals
.Signal Levels( All output Signals ) The BIN, EOS, and IIANDLER
MI MAN and TECH
4
RETEST output signals can be programmed to either a + 5Vor a + 12V
nominal pull -up level
NOTE
Currents into the tester are considered positive
The bin and eos output signals share the following approximate
characteristics
Low Output Level:
VOⅠ:1.0Vat50mA
0.3 at &mA
High Output levels
VOH:( open circuit)5V or 11v
VOH:( at 500 Ma IOH)4.4V or 10V
Short circuit current
at 5v level programmed =-4mA nominal
At 12V level programmed=-95mA nominal
NOTE
The RETEST output signal can be programmed to either a +.v or 12V pull-up level
along with the bin and Eos outputs. It can sink, however, about 2OMA
of current in either pulled-up mode
Output Timing. The timing of the eos and bin signals can be
independently programmed. The 12bin signals share the same timings.
The interface permits the start and stop to occur at any time within a
one-second period, with programming resolution of one millisecond
This one-second period begins when the Win g2 has finished executing
the follow, or overlap the eos signal
The timing control of the retest signal is unique among outputs, as is
its Phase control the timing of the retest output is not controlled by
Interface hardware. But by the time at which its control bit is turned on
And off by the win 92
MI MAN and TECH
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The accuracy of all timing is +20%0.
Safety considerations
The SaFeTY wire is connected to the safety wire output on the J1( pin
L6)
And J12( pin 20) bulkhead connector, as well as pin 20 of the handler
interface connector on the test head. One of these wires must be pulled
to ground before the tester delivers any voltages to the test station note
that
Each of the four test stations has its own separate safety wire
It is intended that the safety wire be connected such that it is low
only when shields are in place to prevent contact between the operator
and any wires containing hazardous voltage
WARNING
MAKE SURE THAT APPLICATIONS HARDWARE YOU DESIGN CAUSES
SAFETY TO GO HIGH IMMEDIATELT WHEN ANY SAFETY SHIELDS ARE OPENED
The switch used to connect the safety wire to ground must be capable
of switching 12v at 15MA
12. REFERENCE
Bit charts
The follo wing bit charts illustrates the bit functions related to the
operation of the programmable handler/prober interface. These are
partial bit charts
NOTE
The following bit charts are included for the sake of completeness. You are
advised not to programming to the addresses illustrated below, as you may
interfere with the win92 control. This is because attempts to use send
command control in the job plan do not prevent the executive program
from performing subsequent control at the end of the job plan. The handler
MI MAN and TECH
6
or prober will undoubtedly become"confused"by this effect
PA172
HANDLER 3& HANDLER 4 CONTROL
PA172
SEC
FUNCTION W/R ADD.g34B32831B24822821814812811804B02B01
SLEECT SELECT
HANBLER
HAHDLER HANDLE
SELECT
HANDLER
OUTPUTOUTPUTINPUT
F真 RAMETER5
WH
PHASE PHASE PHASE
COUNTEFL
啊w3
A3
AI
ADpRESS
LOAD HAM
更恶日N
W我
FNABLE ENABLE
TIME
ELECT
HANOLErHANDLE
点NDL
HAADLER
CLFAF
CLFAR
CLEAR CLEAR
M真 NDLER
H品Np
E0S日N
N
TPIAEGT
DIRECT DIRECT
HANDLEH 4
HANPLEE
旺自5是日N
TIN
DIREGT DIRECT
GO
PA173
HANDLER 1 2 CONTAOL
PA173
SEC
FUNCTION| W/RADD934832831824B22B21B14B12B11B04B02801
SELECT SELECT
HANOLEA
w
ANDLERJHANDLE
SELECT
HANDLER
EOS OUTPUT OUTPUTINPUT
PARAMETERS
PHASE LEVEL PHASE PHASE
L0▲0
COUNTERS
Ad
粪DD爬E55
LOAD RAM
EOS
N
E NABLE ENABLE
TIME
TIMETIME
HANDLER
NOLERHANCLER
MANDLER
CLEAR
CLEAR
CLEAR CLEAR
HANDLER 1
BIN
HANDLER
DIRECT
RECTDIRECT
HANDLER 2
HANDLER
Eos & BIN
BIN
DIRECT
DIRECT DIRECT
MAN and Tech
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PA176
PENDANTS 384, AND STATION CONTROL
PA176
SEC
FUNCTION W/R ADD.B34B32831824822821814812811804B02B01
START
HAND HAND HAND HAND AAUTOSSAUTO SS] REJECT REJECT
AND
RETEST
STAHT STAHT RETEST RETEST CLEARCLEAR CLEAR CLEAR
CLEAR
sTaRT
CLEAR CLEAR
RESTART
HAND HAND
START START
L▲TCH
R
BIN NUMBER W/R W6 BIN BIN 10BIN9 BIN B BIN 7 BIN BIN 5 BIN4 BIN3 BIN2 BIN1 BIN O
BIN NUMBER W/ BIN 11 BIN 10 N9 BIN 8 BIN7 BIN B BIN 5 EIN 4 IBN 3 BIN 2 BIN 1 BIN o
MI MAN and TECH
FA177
PENDANTS 1 &2 AND STATION CONTROL
PA1了7
I SEC.
FUNCTIONW/R ADD.B4632831824B22821B|4B12B11804Bn2801
▲H
PENDANT PFN ANrFhnAN TPENDA N THANDH FAHANMIL FRHANC LER HAA DLER AUTO 3S AUTOSS REFCT REJECT
▲№ O RETEST
sTAAT sTAat ETEST HEILET FIA TAnT hcTEsT ncTEoT CLCAA CLEAR CLCAn CLEAF
eCA日sTAT
CLEAN CLEAR CLEAR FLEAR CLLAR CLEAR STATION STATIO
FsT幽F↑
2PENDANT PEN2A1TPEMDAM TENDANIHANCLE I
LATCH
POWERPOWER
5TRrs血T
AP
Of START TAAr OFF CFF
f阳D市吧hD户N
T
STA TIOAA1晶2
REA6典燕白|v典
OATA BITs
Wm|aac"|AcκoAC
SET
MDOL RISEI
PENDMNT G
ENDI STATICN
PENDANT FENDANT
CMER
CONTROL
WITCH POWER
IREADY TROUBLE
CLEAR
HEAD EAFETY
ST1
PENDANT FENDANT
POWER :AJOK
SWITCH
READY TROUBLE
ON
SET
PENDANT
FEND 2
PENDANTPEMDANT
HANDLEn 2
SWITCH
HER
CONTROL
READY TROUBLE
CLCAR
AEAD
PEND 2
PENDANT FENDAMT
ST 2
AFET下
WER
SWITCH
SET
READY TROUBLE
HANCLER 3
BIN NUMBER
WR W5 BIN11 BIN 10 BIN9EIN8 BN7 BINE BIN5 AIN4BIN3BIN2BIN1
BIN Q
HANDLE且磊
日| NUMBER
WIR
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Pinouts
Figure 1-1 illustrates the pinout of the handler/prober interface, J12,at
both the bulkhead connector and the test head. The signal safety*is
the same as on j1. The +5Vpin supports 100Ma total: the +/_12V pin
supports 5oMa total. Totals are for all stations
CAUTION
Shorting to ground may result in test system damage
MAN and Tech
[01]
bIN O
[14
[02]
HANDLER START
B工N1
HANDLER RETEST
03
BIN 2
[16]
4]
SUMMARY SHEET
bIN 3
17
[05]
REJECT
BIN卣
HANDLER RETEST
06]
OUT
BIN 5
19
[07]
HANDLER ALARM
BIN 6
20]
08]
SAFETY*
BIN 7
21]
[09]
HANDLER CLEAR
工N8
[22]
[10]
45W
BIN
23
[11]
+12V
N10
[24
12]
GROUND
B工配11
25]
13
GROUND
EOS
Figure 1-1 Handler interface connector pinuuis (12 and on test head)
MAN and tech
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