SEMI-THERM Educational Foundation (STEF) is dedicated to worldwide educational opportunities and resources within the electronics thermal engineering community by providing programs for ongoing professional development, along with technical and academic networking.

501(c)(3) charity; gifts are tax-deductible.
97¢ of each $1 spent went to programs.
Mission: Form 990 Part I, line 1 · Status: IRS Pub. 78 · Programs: Part IX

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FY2025 · Form 990Independent: from IRS data, not the org
Download 990
IRS status
501(c)(3)
not on the IRS revocation list
Looks good: listed by the IRS and not on the revocation list.
IRS BMF · Auto-Revocation List
Tax-deductible gifts
Yes
Donations are tax-deductible
Looks good: the IRS lists gifts to it as deductible.
IRS Pub. 78 · IRS BMF
Latest return
FY2025
latest Form 990
Looks good: the latest return is for FY2025, 1 tax year back; within 2 tax years.
IRS e-file · Filing history
Surplus or deficit
3 of 5
filings with a surplus
Average surplus $5K a year · 2% of revenue · last 5 filings
Worth a look: a surplus in 3 of the last 5 filings.
Pt I · Ln 19 · 5 filings
Spent on programs
97%
of spending
Looks good: 97% of spending went to programs; 75% or more.
Pt IX · Ln 25 · col B
8 mo
of spending, in cash
Looks good: 8.1 months of spending in cash; 3 or more.
Pt X · Ln 1–2 · Pt I · Ln 18
Liabilities
$0
0% of total assets
Looks good: liabilities are 0% of assets; 50% or less.
Pt X · Ln 26
Independent board members
7
of 7 voting members
Looks good: 7 of 7 voting members are independent, a majority.
Pt VI · Ln 1a–1b
Looks goodFineWorth a lookConcernNo data yetTap a box for the reason.
Revenue
$287K
-5% vs prior year
Spent
$253K
To programs
97%
Net assets
$170K
By yearFY2021–FY2025
Revenue
$287K
FY2025▼ -5%
Tap a bar for its year
Revenue by fiscal year
FY2021$53K
FY2022$188K
FY2023$352K
FY2024$302K
FY2025$287K
Expenses
$253K
FY2025▲ +0.6%
Tap a bar for its year
Expenses by fiscal year
FY2021$128K
FY2022$215K
FY2023$310K
FY2024$251K
FY2025$253K
Net assets
$170K
FY2025▲ +26%
Tap a bar for its year
Net assets by fiscal year
FY2021$70K
FY2022$43K
FY2023$85K
FY2024$136K
FY2025$170K

From the FY2025 Form 990 (year ending April 2025) · see the original

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Is it real?

Yes. Never revoked by the IRS. Latest filing on record: FY2025. IRS ruling in Feb 2013.

IRS Pub. 78 · IRS Auto-Revocation List · IRS Business Master File

Where the money goes

97 cents of each dollar spent went to programs.

Program services 97% · $245K Management & general 3% · $8K

Form 990 Part IX, line 25, columns B–D. Every line is in By the numbers.

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Who runs it and what they're paid

7 people listed on the 990.

Part VII, Section A · reportable compensation · most recent filed roster (FY2024); the FY2025 filing did not itemize Part VII
$0Pt VII · Sec A
Chairman
$0Pt VII · Sec A
$0Pt VII · Sec A
$0Pt VII · Sec A
$0Pt VII · Sec A
$0Pt VII · Sec A
$0Pt VII · Sec A
See Semi-Therm Educational Foundation executive salaries →

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Questions the 990 asks

The form asks each of these directly. These are the filed answers.

  • Family or business ties among officersPt VI · Ln 2No
  • Top official's pay set by an independent reviewPt VI · Ln 15aNo

Programs and updates

Provides educational opportunities and resources for electronics thermal engineers through professional development and networking.

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1 program · $245K · in their own filed words · FY2024
01

Stef sponsors an annual international symposium for the thermal industry to showcase the latest advances in electronics thermal management by providing presentations and short courses in industry challenges.

$245Kprogram expense

By the numbers

The FY2025 990, line by line.

1The main four
Money inPt VIII
$287K
Ln 12
Fees for servicesLn 2g$287K
Investment incomeLn 3$7
Money outPt IX
$253K
Ln 25
Programscol B$245K
Managementcol C$8K
Owns and owesPt X
$170K
net assets · Ln 32
Cash and savingsLn 1–2$170K
Total assetsLn 16$170K
LiabilitiesLn 26$0
PeoplePt VI, VII
7
listed · VII A
PaidVII A0
Voting boardVI 1a7
IndependentVI 1b7
2In more detail
Revenue in detailPt VIII
Fees for servicesLn 2g$287K
Investment incomeLn 3$7
Total revenueLn 12$287K
Assets in detailPt X, end of year
CashLn 1$170K
Cash and savings togetherLn 1–2$170K
Land, buildings, equipmentLn 10c$0
Total assetsLn 16$170K
LiabilitiesLn 26$0
Net assetsLn 32$170K
OperationsPt I, VI
EmployeesI 50
VolunteersI 60
Fiscal year endsHeaderApril
Conflict-of-interest policyVI 12aYes
Whistleblower policyVI 13Yes
Records policyVI 14Yes
3Year over year
Balance sheet, start vs end of yearPt X · col A, B
LineStart FY25End FY25
Cash and savingsLn 1–2$136K$170K
Land, buildings, equipmentLn 10c$0$0
Total assetsLn 16$136K$170K
LiabilitiesLn 26$0$0
Net assetsLn 32$136K$170K
4Every line
Statement of functional expensesPt IX · every line
LineTotalProgramsManagementFundraising
Management feesLn 11a$53K$53K
Accounting feesLn 11c$6K$6K
Office expensesLn 13$2K$2K
Information technologyLn 14$16K$16K
TravelLn 17$656$656
Conferences, conventions and meetingsLn 19$139K$139K
Other expenses (24a–d)Ln 24$36K$36K
Total functional expensesLn 25$253K$245K$8K$0

Filing history

YearMoney inMoney outIn minus outNet assetsDownload
FY2025 Latest Viewing $287K$253K$35K$170K 990 PDF
FY2024 $302K$251K$51K$136K 990 PDF
FY2023 $352K$310K$42K$85K 990 PDF
FY2022 $188K$215K−$27K$43K 990 PDF
FY2021 $53K$128K−$75K$70K 990 PDF

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Schedules filed Part IV

III · Programs R · Related orgs G · Fundraising L · Interested persons I · Grants A · Public support O · Explanations
See the full FY2025 990 (6 parts)
Part I · Summary $287,358 revenue, 12 lines filed
I-8 Contributions and grantsPrior year $0$0
I-9 Program service revenuePrior year $301,771$287,351
I-10 Investment incomePrior year $12$7
I-11 Other revenuePrior year $0$0
I-12 Total revenuePrior year $301,783$287,358
I-13 Grants and similar amounts paidPrior year $0$0
I-14 Benefits paid to membersPrior year $0$0
I-15 Salaries and benefitsPrior year $0$0
I-16a Professional fundraising feesPrior year $0$0
I-17 Other expensesPrior year $251,041$252,620
I-18 Total expensesPrior year $251,041$252,620
I-19 Revenue less expensesPrior year $50,742$34,738
Part VI · Governance 7 of 7 board members independent, 1 to look at
VI-1a Voting members of the governing body7
VI-1b Independent voting members7
VI-15a Process for setting top official's payNo
VI-2 Family or business relationship among officers or directorsNo
VI-12a Written conflict of interest policyYes
VI-13 Written whistleblower policyYes
VI-14 Document retention and destruction policyYes
Part VIII · Statement of revenue $287,358 across 3 lines filed
VIII-2a-f Program service revenue, itemized rows (sum of 2a–2f as filed)Related to mission $287,351$287,351
VIII-3 Investment incomeExcluded from tax $7$7
VIII-12 Total revenueRelated to mission $287,351 · Unrelated business $0 · Excluded from tax $7$287,358
Part IX · Statement of functional expenses $252,620 across 7 lines filed
IX-11a Management feesPrograms $53,074$53,074
IX-11c Accounting feesManagement $6,189$6,189
IX-13 Office expensesManagement $1,580$1,580
IX-14 Information technologyPrograms $15,694$15,694
IX-17 TravelPrograms $656$656
IX-19 Conferences, conventions and meetingsPrograms $139,145$139,145
IX-24 Other expenses (24a–d)Programs $36,282$36,282
IX-25 Total functional expensesPrograms $244,851 · Management $7,769 · Fundraising $0$252,620
Part X · Balance sheet $170,367 assets, 7 lines filed
X-1 Cash, non-interest-bearingStart of year $135,629$170,367
X-10c Land, buildings and equipment, netStart of year $0$0
X-16 Total assetsStart of year $135,629$170,367
X-26 Total liabilitiesStart of year $0$0
X-27 Net assets without donor restrictionsStart of year $135,629$170,367
X-32 Total net assets or fund balancesStart of year $135,629$170,367
X-33 Total liabilities and net assetsStart of year $135,629$170,367
Part XI · Reconciliation of net assets $170,367 net assets at year end
XI-1 Total revenue$287,358
XI-2 Total expenses$252,620
XI-3 Revenue less expenses$34,738
XI-4 Net assets at start of year$135,629
XI-9 Other changes in net assets$0
XI-10 Net assets at end of year$170,367

Form 990 e-file (XML) FY2025 from the IRS · Classification, formation year and address from the IRS Business Master File

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