Applied Materials Inc posted record quarterly revenue on Wednesday on robust demand for its semiconductor-making equipment from chipmakers, but a weak forecast for the current quarter suggested that supply chain woes will hurt its business.

The company forecast revenue between $6.05 billion and $6.65 billion for the second quarter, the midpoint of which was below analysts’ average estimate of $6.38 billion.

Applied Materials is among the biggest makers of machinery used to manufacture semiconductors and counts among its top customers Taiwan Semiconductor Manufacturing Company , Samsung and Intel Corp .

But shipping delays and shortage of key parts in recent months have made it harder for chipmakers to ramp up production, stopping companies like Applied Materials from fully cashing on a surge in demand.

“While the supply environment remains challenging, Applied Materials is doing everything we can to deliver for our customers and we recorded our highest-ever quarterly revenues,” said CEO Gary Dickerson.

Shares of the California-based company rose 3% in extended trading.

Applied Materials reported first-quarter revenue of $6.27 billion, above analysts’ estimates of $6.16 billion, according to Refinitiv IBES data.

Net income rose to $1.79 billion, or $2 per share, during the quarter ended Jan. 30, from $1.13 billion, or $1.22 per share, a year ago.