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- Xref: sparky sci.materials:905 sci.engr.mech:544
- Path: sparky!uunet!caen!rphroy!kocrsv01!pkbhatti
- From: pkbhatti@kopth004.delcoelect.com (Pardeep K. Bhatti)
- Newsgroups: sci.materials,sci.engr.mech
- Subject: Re: common solder materials
- Keywords: mech props, solder materials
- Message-ID: <1992Nov18.202311.29107@kocrsv01.delcoelect.com>
- Date: 18 Nov 92 20:23:11 GMT
- References: <1992Nov18.161229.11293@engr.uark.edu>
- Sender: news@kocrsv01.delcoelect.com (Usenet News Account)
- Organization: Delco Electronics Corp.
- Lines: 28
-
- In article <1992Nov18.161229.11293@engr.uark.edu> bic@engr.uark.edu (CHANDRAN BIJU I) writes:
- >Is anyone out there familiar with a book or an article listing the mechanical
- >properties (Youngs modulus, etc.) of common solder materials.
- >
-
- Welcome to the exotic world of solder materials!!!
- It is very difficult to get good, reliable data on mechanical properties of
- solder materials. Most common solder materials have highly nonlinear
- constitutive stress-strain relationships, which are also very temperature
- dependent. Furthermore, they exhibit creep and plasticity phenomena which
- dominate their mechanical behavior in their normal operating temperature
- range.
-
- There is very limited solder property data in books, but there are a good
- number of technical papers on this subject. A good starting point will be
- the ASME Journal of Electronic Packaging and IEEE Transactions on Components,
- Hybrids, and Manufacturing Technology (CHMT). Also check proceedings from
- ASME WAM conferences from recent years. However, there is a wide variation
- in the published solder property data in the literature. For example, there
- is a 5 to 1 variation in the reported Young's modulus figures for the most
- common solder (63/37 Sn-Pb).
-
- Good luck with your search...
- --
- Pardeep K. Bhatti pkbhatti@kopth004.delcoelect.com
- Delco Electronics Corporation
- GM Hughes Electronics
- *** The opinions expressed are mine, not necessarily of my employer. ***
-