cleanrooms - 2026 ACF Regionals

Packet C: Tossup 3

The Class 10000 ISO7 (“I-S-O-seven”) standard for these facilities (10[1])requires an ACH (“A-C-H”) of an inverse minute. While at Sandia National Lab, Willis Whitfield pioneered usage of laminar flow in these facilities. (10[1]-5[1])Clair Cameron Patterson (10[1])effectively turned his lab (10[1])into one of these (10[1])facilities (10[1])while (10[1])trying to date (10[1])the Earth. (10[4]-5[1])In the (10[1])“recirculating” (-5[1])class of these facilities, (10[1])flow (10[1])is drawn (10[2])into the ceiling plenum (10[2])before being (-5[1])passed (10[1])through a HEPA (“HEP-uh”) system. (10[2]-5[3])NASA’s (10[2]-5[1])Goddard Spaceflight (10[1]-5[1])Center has the world’s (10[1])largest (10[1])one (10[1]-5[2])of these (10[1]-5[1])facilities (-5[4])where assembly (10[2])of (-5[1])sensitive (-5[1])equipment (10[2])occurs. (10[2]-5[3])Semiconductor (10[3])fabs contain (10[1])these (10[1])tightly controlled facilities (10[1])where integrated circuit manufacture (10[1])occurs. (10[1])For 10 points, people must take an “air shower” (10[1])before (-5[1])entering (10[1])what (10[1])spaces (10[1])with very low airborne particulate (10[1]-5[2])concentrations? (10[2]-5[1])■END■ (10[11]0[10])

ANSWER: cleanrooms [prompt on labs or laboratories; prompt on semiconductor fabs or semiconductor fabrication plants or answers referring to places where semiconductors or integrated circuits or chips are made by asking “what specific facilities in them?”; prompt on rooms or buildings or any answers implying an indoor space]

<GC, Other Science> | Packet C - Virginia Tech A, Waterloo A, UCSD A, UBC A

= Average correct buzzpoint

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Buzzes

Player	Team	Opponent	Buzzpoint	Value
Danny Han	Stanford B	Berkeley A	7	10
Connor Blake	Chicago B	Purdue A	29	10
Roselyn Daffin	Southampton B	Imperial B	29	-5
Brendan Bridle	Queen's	Toronto Metropolitan	32	10
Sam Konkel	Chicago C	Northwestern B	36	10
Alex Akridge	Indiana A	Northwestern C	40	10
Dennis Reppen	Imperial A	Durham	41	10
Wren Horne	Harvard B	Brown	42	10
Jiping Fang	Illinois B	Illinois C	45	10
Jack Trott-McDermott	Western C	McMaster A	47	-5
Matthew Stasiw	Toronto C	UBC B	47	10
Nicholas Nguyen	Florida A	Central Florida C	47	10
Jake Meltzer	CWRU A	Ohio State A	47	10
Eric Morshed	Johns Hopkins A	Columbia B	47	10
Krishna Girish	Montpellier	Manchester	49	10
Andrew Massaro	Catholic	NYU B	50	-5
Colin Veevers	Ottawa	McMaster B	54	10
David Nickel	Purdue B	Chicago A	55	10
Danny Fisher	Warwick B	Cambridge A	57	10
Brandon Weiss	Columbia C	Maryland A	57	10
Andres Cordoba	Yale	Brandeis A	61	10
Oliver West	Cambridge C	Imperial C	61	10
Yaj Jhajhria	Washington A	Missouri B	63	-5
Arunn Sankar	Georgia Tech A	Claremont	64	10
Dawson Teu	Waterloo B	McGill B	68	10
Dexter Hine	Simon Fraser	Western B	68	10
Ariel Faeder	Pittsburgh	Ohio State C	68	-5
Benedykt Chodzko-Zajko	Southampton A	Cardiff	68	-5
Alan Li	Cornell C	Binghamton A	68	-5
Matthew Andersen	Florida B	Florida C	69	10
Aryan Desarapu	Michigan B	Ohio State B	69	-5
Matthew Forster	Dartmouth A	Bowdoin A	69	10
Sean Gao	Toronto E	Toronto B	71	10
Daniel Huang	Michigan C	Michigan State	71	-5
Vinu Harihar	Berkeley B	Berkeley C	75	10
Charles Hang	WashU A	Tennessee A	76	10
Wyatt Johnson	CWRU B	Michigan A	77	-5
Graham Cope	Georgia Tech C	Alabama B	77	-5
Jerry Vinokurov	John Jay	Maryland B	77	10
Michał Gerasimiuk	Stanford A	Berkeley D	79	-5
Mats Miller	Chicago D	Illinois A	79	10
Noah Lee	Western A	Guelph	80	-5
Jake Markus	Dartmouth B	Harvard A	80	-5
Delia Cropper	Oxford A	Bristol	80	-5
Cade Reinberger	RIT	Cornell B	80	-5
Nabhaan Farooqi	McGill A	Brock	82	10
Danny Tran	Tennessee B	Mississipi State	82	10
Ian Parsons	Maryland C	Georgetown	83	-5
Matthew He	Texas A	Murray State A	84	-5
Athan Juritsch	Toronto G	Carleton University	85	10
Kevin Peng	Cornell A	Binghamton B	85	10
Luke Robitaille	MIT	Southern Connecticut State	86	10
Zoe Wang	Carleton College	Missouri A	86	-5
Caleb West	Kentucky	Vanderbilt B	86	-5
Henry Jameson	LSE	Edinburgh B	86	-5
Mikey Brown	Birmingham	Warwick A	86	10
James Horsley	Iowa State	Washington B	87	10
Nathan Woolery	Louisville B	Sewanee	87	10
Mia Clark-Webb	Oxford C	Edinburgh A	87	10
S. A. Shenoy	Georgia Tech D	Bruin	89	10
Todd Maslyk	Michigan A	CWRU B	90	10
John Augustyn	Notre Dame B	Indiana C	93	10
Rishabh Dave	Berkeley D	Stanford A	97	10
Jake Wingfield	Bristol	Oxford A	98	10
Jason Qin	Columbia A	Vassar	107	10
Zoë McGuire	Oxford B	City St. George's	108	-5
Ariyan Miah	Binghamton A	Cornell C	109	10
Charles Johnson	Texas A&M A	Texas B	110	10
Braden Booth	Missouri A	Carleton College	111	10
Shiva Tequila	Central Florida A	Central Florida B	116	-5
Ben Hellman	Swarthmore	NYU C	116	-5
Ani Perumalla	Penn State	Rochester	116	10
Jack Granahan	Brandeis B	Bowdoin B	117	-5
Imran Abdul Rahman	UCL	Cambridge B	117	10
Kelvin Ni	NYU B	Catholic	117	10
Gabriel McMurren	Guelph	Western A	118	0
Seth Allen	McMaster A	Western C	118	10
Peyton Legg	Central Florida B	Central Florida A	118	0
Aditya Patnaik	Ohio State B	Michigan B	118	0
Andrew Harms	Michigan State	Michigan C	118	10
Jacob Goodson	Ohio State C	Pittsburgh	118	10
Jacob Finley	Notre Dame A	Indiana B	118	0
Jeremy Ryu	Bowdoin B	Brandeis B	118	0
Michael Kearney	Harvard A	Dartmouth B	118	10
Safiya Hasan	Missouri B	Washington A	118	10
Camrun Scott	Murray State A	Texas A	118	0
Tianyu Xu	Georgia Tech B	Alabama A	118	10
Davin Sivertson	Alabama B	Georgia Tech C	118	10
Jerry Lin	Vanderbilt B	Kentucky	118	0
Zach Foster	City St. George's	Oxford B	118	10
Ted Harrison	Edinburgh B	LSE	118	0
Cole Hartung	Georgetown	Maryland C	118	10
Jarman Taylor	Johns Hopkins B	NYU A	118	0
Ryan Rosenberg	NYU A	Johns Hopkins B	118	10
Zaid Asif	NYU C	Swarthmore	118	0
Pranaav Senthilkumar	Cornell B	RIT	118	10

Summary

Tournament	Edition	Match	Heard	Conv. %	Neg %	Avg. Buzz
California (North)	Main Site	✓	3	100%	33%	59.67
Canada	Main Site	✓	10	90%	20%	69.44
Florida	Main Site	✓	3	67%	33%	58.00
Great Lakes	Main Site	✓	5	80%	80%	93.25
Midwest	Main Site	✓	8	88%	0%	53.86
Northeast	Main Site	✓	6	83%	33%	75.20
Overflow	Main Site	✓	4	100%	50%	95.00
South Central	Main Site	✓	2	50%	50%	110.00
Southeast	Main Site	✓	7	86%	29%	95.00
UK	Main Site	✓	12	75%	42%	79.33
Upper Mid-Atlantic	Main Site	✓	8	88%	38%	91.57
Upstate NY	Main Site	✓	4	100%	50%	107.00