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Model 4085M
All m easure m ents are made by the 4 1 45 A Semiconductor-Parameter Analyzer. The
1-9.
4145A is equipped with four programmable stimulus m easurement units (SM Us), ·two
program m able voltage sources (VSs), two voltage monitors (VMs), an inter . a cUve graphics
display, flexible disc drive, softkeys, full arithmetic keyboard, and HP-IB. l'ilore details on
the 4145A can be found
1-10. The 9 8 1 6 or 9836 Desktop Computer provides overall control- of the 4084A and
4145A via the HP-IB. HP BASIC .language programs can be written to implement any
system capability. Refer to the BASIC language reference m anuals furnished with the
9 8 1 6 and 9836 for complete details.
I-I!. Switching control software and diagnostics software are furnished with the 4085M
on either a 5.25 inch or 3.5 inch flexible disc. The sw itching control software is a library
of - subprograms that can be linked to and called by a user-written program to control and
monitor connections between the instrument ports and m easurement pins of the 4085A.
The diagnostics software provides quick component-level isolation of failures in the
4085M.
1-12. SPECIFICATIONS
1-13. Complete specifications of the Model 4085M are given in Table I-I. These
specifications are the performance standards or limits against which the system is tested.
Table 1-2 lists supplemental performance characteristics. Supplem ental performance
characteristics are not specifications but are typical characteristics included as additional
information for the operator. When the 4085M is shipped from the factory, it meets the
specifications listed in Table I-I.
1-14. SAFETY C O N SIDERATIONS
1-15. The M odel 4085M Switching Matrix (for 4145A) has been designed to comform to
the safety requirements of IEC (International Electromechanical Committee) Safety Class
I a.. n d was shipped from the factory in a safe condition.
1-16 . This m anual contains information, cautions, and warnings which must be follow ed
by the user to ensure safe- operation and to m aintain the 4085M in a safe and serviceable
condition.
1-17. SERIAL N U MBERS
1-18. Hewlett-Packard uses two serial numbers to identify each 4085M com ponent. The
serial numbers are stamped on a serial number plate and a stick-on label (Figure 1-3)
attached to the rear panel of each instrument. The 4085M serial number is used to
identify the 4085M. The instrument serial number is used to identify the individual
instrument. In any correspondence with Hewlett- Packard, be sure to include both the
4085M serial number and the instruments' serial numbers.
1-19. M A N UAL CHANGES
1-20. Hewlett-Packard w ill publish a yellow Manual Changes �upplement to inform
owners of - the 4085M of any manual changes or manual errors (called Errata). To keep this
m anual as current and as accurate as possible, Hewlett-Packard recommends that you
periodically request the latest Manual Changes supplement. The supplement for this
manual is indentified with this manual's print date .and part number, both of which appear
on the title page.
Hewleet-Packard.
its manual.
in
Complimentary copies of the supplement are available from
Section I
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