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SEC Company Response from AXCELIS TECHNOLOGIES (ACLS) — Dec 29, 2025

AXCELIS TECHNOLOGIES INC
Date: Dec. 29, 2025 · CIK: 0001113232 · Accession: 0001104659-25-124919

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File numbers found in text: 333-292008

Date
December 29, 2025
Author
Eileen Evans
Form
CORRESP
Company
AXCELIS TECHNOLOGIES INC

Letter

AXCELIS TECHNOLOGIES, INC. 108 Cherry Hill Drive

Beverly, Massachusetts 01915

(978) 787-4000

December 29, 2025

VIA EDGAR

U.S. Securities and Exchange Commission

Division of Corporation Finance

100 F Street, NE

Washington, D.C. 20549

RE: Axcelis Technologies, Inc . (the "Company")

Registration Statement on Form S-4

File No. 333-292008 Request for Effectiveness

Ladies and Gentlemen:

Pursuant to Rule 461 under the Securities Act of 1933, as amended, the Company hereby respectfully requests that the effective date of the Company's Registration Statement on Form S-4 (File No. 333-292008), filed with the U.S. Securities and Exchange Commission (the "Commission") on December 8, 2025, as amended on December 29, 2025, be accelerated by the Commission to 4:00 p.m. New York time on December 31, 2025, or as soon as practicable thereafter.

We request that we be notified of such effectiveness by a telephone call to Maxim Mayer-Cesiano of Skadden, Arps, Slate, Meagher & Flom LLP at (212) 735-2297 with such effectiveness to also be confirmed in writing to maxim.mayercesiano@skadden.com.

Very truly yours,
Axcelis Technologies, Inc.

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CORRESP
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 filename1.htm

 AXCELIS TECHNOLOGIES, INC.
 108 Cherry Hill Drive

 Beverly, Massachusetts 01915

 (978) 787-4000

 December 29, 2025

 VIA EDGAR

 U.S. Securities and Exchange Commission

 Division of Corporation Finance

 100 F Street, NE

 Washington, D.C. 20549

 RE:
 Axcelis Technologies, Inc . (the "Company")

 Registration Statement on Form S-4

 File No. 333-292008
 Request for Effectiveness

 Ladies and Gentlemen:

 Pursuant to Rule 461 under the Securities
Act of 1933, as amended, the Company hereby respectfully requests that the effective date of the Company's Registration Statement
on Form S-4 (File No. 333-292008), filed with the U.S. Securities and Exchange Commission (the "Commission") on
December 8, 2025, as amended on December 29, 2025, be accelerated by the Commission to 4:00 p.m. New York time on December 31, 2025,
or as soon as practicable thereafter.

 We request that we be notified of such effectiveness
by a telephone call to Maxim Mayer-Cesiano of Skadden, Arps, Slate, Meagher & Flom LLP at (212) 735-2297 with such effectiveness
to also be confirmed in writing to maxim.mayercesiano@skadden.com.

 Very truly yours,

 Axcelis Technologies, Inc.

 By:
 /s/ Eileen Evans

 Eileen Evans

 Executive Vice President, Human Resources and Legal, and General Counsel

 cc:
 Maxim Mayer-Cesiano

 Skadden, Arps, Slate, Meagher & Flom LLP